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#51 Re: Human missions » Free flowing water found on Mars? » 2015-09-29 18:53:04

I guess this is the point where we have to decide if it is more important for us preserve human life by taking up residence as many places as possible, or potentially sacrifice ourselves in exchange for the warm and fuzzy feeling that only affirmative action for germs can provide.

#52 Re: Human missions » Free flowing water found on Mars? » 2015-09-27 21:07:36

That's awfully nice of it to just ooze out of the ground so that it can be seen from orbit.

The next step is getting to it. What more would we need to determine the extent of the deposit? If it's coming out of the wall of a canyon, can we land above it and drill down to it?

#53 Re: Unmanned probes » Outer Planets Flagship mission (OPF) » 2015-09-18 20:05:42

They need standardized orbiter, rover, and lander designs, capable of excepting modular plug in payloads. The price of these one-off missions severely limits what we can do.

We can drop a billion dollars on a submarine to Titan, or we can plan one applicable to Titan, Europa, Enceladus, and perhaps more.

#54 Re: Life support systems » Designing the best greenhouse demonstrator for Mars » 2015-09-18 19:34:32

With advancements in aquaponic and microponic systems, I think we can greatly simplify off world agricultural systems. LED's are cheap and effective sources of light. There is plenty of CO2 readily available to enrich the atmosphere. Conventional hydroponic systems require complex nutrient solutions, the ingredients of which would have to be found, likely refined, and mixed. Aquaponics uses fish effluent as a nutrient solution, recycling the water back to the fish. Other small animals contribute to a wider ecosystem, of which the astronauts are but a part.

The question is, can we get the fish to their destinations? It would seem that simulated gravity is essential.

#55 Re: Interplanetary transportation » Orion (CEV / SM) - status » 2015-09-18 16:42:41

RobertDyck wrote:
Excelsior wrote:

Please, Elon, if your listening, stick an unmanned Dragon 2 on top of your Falcon Heavy test launch next year and do the EM-2 mission.

To be nit-picky, that would be EM-1. The only flight that Orion has flown was EFT-1, the next will be EM-1. The EM-1 flight will be unmanned around the Moon. EM-2 will be manned.

But, yea, launching Dragon v2 on Falcon Heavy to the Moon unmanned would be way cool! But I'm not expecting it. Dragon v2 does not have a service module, only a trunk. Propellant it carries is only enough to rendezvous with ISS, then return to Earth. TEI would require significantly more propellant. I doubt it even has sufficient propellant for LOI. When Constellation was current and contractors bid for CEV, SpaceX designed Dragon to be their vehicle to carry astronauts to Lunar orbit and back. So that's what it originally was. However, that design had a service module; Dragon v2 doesn't. SpaceX could redesign the trunk to be a service module, but that would take time and money. I don't expect it for first launch of Falcon Heavy. In fact, I expect Dragon v2 will dock with ISS before they redesign it for the Moon.

Well in this case, the primary mission would be simply testing the Falcon Heavy. Everything on top of that would be gravy. The Falcon Heavy claims to be able to put 16,000kg into a translunar trajectory. Given the only payload would be the approximately 5000kg for a largely empty Dragon 2, the second stage should be able to tag along, perhaps with enough fuel to enter and leave lunar orbit, depending on how much fuel it would lose in transit, completing the EM-2 requirements. At the very least it could do a free return EM-1 dry run, providing an extended test for the capsule, particularly the heat shield. Life support can be addressed in another flight. An operational lunar program would have additional components anyway, but such a test would prove the most important ones in a single bold stroke.

The whole point is to embarrass the agency, and give the politicians the opportunity to reexamine the agencies approach, and hopefully consider building a lunar program around tried and tested commercial hardware.

#56 Re: Interplanetary transportation » Orion (CEV / SM) - status » 2015-09-17 13:16:11

Please, Elon, if your listening, stick an unmanned Dragon 2 on top of your Falcon Heavy test launch next year and do the EM-2 mission.

#57 Re: Unmanned probes » MESSENGER - Mercury Orbiter » 2015-04-30 15:11:28

Das Kaput...

NASA’s Messenger spacecraft crashes into Mercury

Messenger, NASA’s Mercury-orbiting spacecraft, reached the end of its historic 11-year mission Thursday when it crashed into the little planet closest to the sun.

The spacecraft, which was out of fuel, slipped out of orbit and slammed into Mercury at 3:26 p.m. ET, according to mission controllers at the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md.

Mission control confirmed end of operations at 3:40 p.m. ET,when no signal was detected by NASA’s Deep Space Network (DSN) station in Goldstone, Calif., at the time the spacecraft would have emerged from behind the planet

At 3:16 p.m. ET, the mission's @MESSENGER2011 Twitter account had tweeted: "Well I guess it is time to say goodbye to all my friends, family, support team. I will be making my final impact very soon."

At 3:23 p.m. ET @MESSENGER2011 tweeted "#thatsmessenger" and an image of Mercury's surface, with the message "Messenger's last act? That's smashing!"

#58 Re: Interplanetary transportation » SpaceX Falcon 9R launch » 2015-04-25 12:15:46

What if they installed the Dragon 2's LAS/Powered decent system on the top of the first stage? Seems to me that would provide some some much needed stability, if it doesn't add too much weight.

#59 Interplanetary transportation » The Empire Strikes Back: ULA's Vulcan Rocket » 2015-04-14 14:04:50

Excelsior
Replies: 17

ULA Unveils Next Generation Launch System with a Little Showmanship

'Behold Vulcan': Next-Generation Rocket Unveiled by United Launch Alliance

United Launch Alliance, the U.S. company behind the Atlas and Delta family of rockets, has unveiled Vulcan, its next generation launch system.

The new Vulcan rocket, which got its name through a poll that attracted more than a million votes, incorporates new engines, a reuse approach that features a mid-air recovery and a new upper stage aimed at enabling complex on-orbit operations.

"[Vulcan is] going to take the best parts of Delta and Atlas and combine them with new and advanced technology to provide a rocket that is not just as reliable and certain as Atlas has been, but also much more powerful, with higher performance, greater flexibility and [is] significantly more affordable," Tory Bruno, United Launch Alliance CEO, said in a press conference held Monday (April 13) at the Space Symposium in Colorado.

In March, the United Launch Alliance (ULA) announced that it plans to phase out use of all but the heavy-lift version of its Delta rocket by 2018. The Vulcan is ultimately intended to replace both the Delta and Atlas, initially as a medium-class launch vehicle to fly in 2019, and then in a heavy-lift configuration by 2024.
...
Step 1, first stage

"The first step is this much more powerful booster," Bruno described. "It will sit atop a pair of advanced technology Blue Origin BE-4 rocket engines. They will burn clean and inherently reusable liquid oxygen and methane fuel."

Last year, ULA announced that it had partnered with Blue Origin, the privately-funded aerospace company owned by Amazon.com founder Jeff Bezos, to create a replacement for the RD-180 engines that power the Atlas today. Under pressure by Congress to phase out all use of the Russian-made RD-180s, ULA selected the BE-4 for the Vulcan.

"They will replace the venerable RD-180s, which generate 930,000 pounds of thrust. This pair of BE-4s will kick that up to well over 1.1 million pounds of thrust, a significant improvement in performance," Bruno said.

"They will sit underneath a stretched set of tanks that will contain significantly more propellant so that we can take advantage of the increased power to provide more impulse as we go to space," he added.

The new booster will also increase the number of possible side-mounted solid rocket motors by one more than Atlas, for a total of six, providing up to 20 percent more power.
...
Step 2, second stage

"We are going to take a giant leap forward in our upper stage," Bruno said. "Burning liquid oxygen and hydrogen, it'll start with these very large high-capacity balloon tanks [that are] so thin, so lightweight, that on Earth they cannot even support their own mass. They would collapse without propellant or pressure to hold their shape. They are truly designed to fly in space."

The ACES will be powered by one to four rocket engines, which Bruno said will be chosen from the existing Aerojet Rocketdyne RL-10 that is used with the Centaur, the Blue Origin's BE-3, or a new engine based on technology being developed by XCOR Aerospace.

The ACES will also incorporate a new integrated vehicle fluids system.

"This is the ultimate in reuse," Bruno explained. "The thing that limits the performance of the upper stage systems in launch vehicles is time — time in space. Eventually our propellants boil off and we're out of usable propellant. This system changes all of that."

Using an advanced internal combustion engine developed by race car manufacturer Roush, the waste propellants will be recycled to re-pressurize the stage's tanks, to generate electrical power and to provide control and attitude thrust.

"This completely changes everything," stated Bruno. "This provides a tremendous extension to our ability to operate on orbit."

"We're going to go from hours to weeks with this system," he continued. "We can take multiple satellites into orbit, we can put them in different planes and when we are done with that we can fly back to space station for operations."
...
Steps 3 and 4: reuse and many uses

The third step of ULA's development plan is to introduce reusability. Instead of recovering the entire first stage, like its competitor SpaceX has been attempting to do using an ocean-based landing platform, ULA's "Sensible, Modular, Autonomous Return Technology," or SMART, initiative will seek to recover only the first stage engines.

"In this approach, when the booster is done and you are finished with the rocket engines, we will cut them off, we will return them to the Earth using an advanced inflatable hypersonic heat shield and then with a very low, simplified logistics footprint, we'll recover them in mid-air and return them to the factory to quickly recertify them and then plop them under the next booster to fly," Bruno described.

"This will take up to 90 percent of the propulsion cost out of the booster," he stated, adding that SMART is only the beginning of the company's plans for how to reuse other components of its launch system, with more details to be announced later. [The World's Tallest Rockets: How They Stack Up]

Finally, combining the three earlier steps, Bruno said the Vulcan rocket would be in position to offer distributed lift, enabling the launch of multiple spacecraft components on multiple launches that could then meet up in orbit by using the new ACES upper stage.

"Now this is the real game changer," he stated. "We could take on our first launch big fuel tanks, supplies, food [and] water, if it is manned mission. Then on the next flight, we bring up the spacecraft, the astronauts in their capsule, and with this advanced upper stage that can fly around for weeks, we can put these pieces together."

"We can go out and tap the resources that are in space," Bruno remarked. "We can asteroid mine and then build the infrastructure for a real and permanent human presence."

Bruno said the cost per launch would be under $100 million without giving specifics including the development costs which ULA says will come from their current profits. But should the government choose to invest the system, they wouldn't be opposed.

It's clear Bruno is trying to respond to the SpaceX threat and is playing catch up. Having finally seen the SpaceX threat for what it is, real as opposed to hype, it was either step-up and compete or eventually lose their lucrative military launch contracts to SpaceX.

https://youtu.be/emmeil-0u5k

It's probably too soon make a judgement in all but one thing, competition is good.

#60 Re: Space Policy » Senator Ted Cruz appointed to oversee NASA in Congress » 2015-04-05 22:35:14

RobertDyck wrote:

NASA started as NACA. Aircraft development was slow, industry had difficulty coming up with technologies to make commercial aircraft profitable. The problem was commercial corporations only wanted to invest in something with low risk, and assured return on investment over short time. That meant no work on high-risk/high-payoff technologies. So the US government created an agency specifically to conduct research in high-risk/high-payoff aircraft technology. Founded March 3, 1915, this was when aircraft used fabric wing and fuselage skin, wooden structural members, exposed engines. Before World War 1. The US Army already used aircraft for reconnaissance, so had a vested interest. The US Air Force wasn't founded until after World War 2; during the world wars it was the Aviation Section Signal Corps (when NACA was founded), US Army Air Corps (beginning of World War 2), or various other army units. NASA was founded in 1958 by converting NACA. NASA still to this day continues to be responsible for the mandate of NACA.

Your other points are well taken. But the other agencies you mention cannot do what NASA does for aeronautics.

I think the Air Force operates enough support aircraft derived from civilian designs to have a vested interest in their development, and in turn those developments will filter back into the civil sector. Just a couple of examples include blended wing bodies and hybrid air vehicles. The former is a NASA project that the military and civilian markets should be all over. The latter is a heavy lift airship with great potential for military and industry applications.

#61 Re: Space Policy » Senator Ted Cruz appointed to oversee NASA in Congress » 2015-04-05 13:31:22

SpaceNut wrote:

As much as I enjoy the wit we see any nation that borders the US as being one that will be influenced not only by trade but by its politics as well and now back to CRUZ please...

On the topic of NASA's mission and funding priorities, I think Cruz is on to something very important here. Whatever ones opinion on the climate, NASA's diverse priorities spread it too thin to effectively perform it's primary mission. When people think of NASA, they think space, and they support it. They would be confused and probably also a little perturbed that we depend on the borderline hostile Russians for access to a space station we spent a $100+ billion to put together. They would be further confused to find out NASA is also responsible for atmospheric, hydrospheric, and lithospheric research, as well as earthbound aircraft research, and clean energy research. They would be particularly perplexed to discover that US government also operates the US Geological Survey to study the lithosphere, the National Oceanographic and Atmospheric Administration to observe the hydrosphere and atmosphere, DARPA and the Air Force with a vested interest in improving the performance of earthbound aircraft, including civilian air frames, and a Department of Energy to focus on energy issues. It is not partisan bickering to wonder why funding for such research has to come out NASA's budget, with all these other agencies with a clear mission to study these things. Is it because some of those studies involve satellites in orbit? These might be completely worthy project for these other agencies to engage in, but other than time on the launch pad, there is no reason the design, construction, and operation of the satellites for these missions need to have any more impact on NASA's primary mission, space, than any commercial launch.

Charlie Bolden might want to hide behind legislated mission statements, but that doesn't put him or the complete lack of logic behind such statements above the question of the very legislators now charged with oversight of the use of the public's labors. We all agree that NASA needs more funding, and an important step to that a clear narrowly defined mission. A full $18.5 billion dedicated to space might not solve all of NASA's problems, but its a good start.

It might too much to ask Washington to exhibit much coherence in its budgetary practices, but we aught to at least be able to acknowledge it here. And we should celebrate when a legislator actually points it out, regardless of whatever else we might thing of them.

#62 Re: Mars Analogue Research Stations » MDRS 2.0 » 2015-01-28 18:14:31

The story finally hit the media.

An interesting lesson seems to have been learned here...

It took the crew about half an hour to bring the fire under control. Orenstein and crew engineer Dmitry Smirnov used all available fire extinguishers on site, but even after the extinguishers were exhausted and the power cut, the fire was still not out.

"We put out the rest by putting water on the flames," Orenstein recalled.

The four-person crew was barely able to deal with the emergency, he added. "Six or seven [people], to me, seems realistic as the adequate number of people to handle a situation like this most effectively."

It seems to me that this contingency needs to play an important role in mission planning. Firefighting is a major issue on ships at sea, there is no reason to believe spacecraft and surface habs would be any different. If you don't have sufficient manpower to fight the fire, everyone is dead. There is no "jumping overboard".

#63 Re: Interplanetary transportation » New and Improved Antimatter Spaceship for Mars Missions » 2015-01-25 12:30:06

The production and storage issues become much easier to overcome when you have more energy available to throw at it. That means making peace with fission, using more advanced forms of fission, and then moving on to fusion, before anti-matter becomes a truly viable option.

#64 Re: Space Policy » Senator Ted Cruz appointed to oversee NASA in Congress » 2015-01-13 10:21:27

JoshNH4H wrote:

Presumably someone like the outgoing subcommittee chair, the US Senator from Florida Bill Nelson, who was an astronaut aboard STS-61 in 1986 and had the rank of Captain in the US Army.

And how's that been working out for us?

#65 Re: Space Policy » Senator Ted Cruz appointed to oversee NASA in Congress » 2015-01-12 20:22:30

Who else will be more outspoken on the pork barrel nature of the Orion/SLS programs?

Who will fight harder for American leadership in space, independent of imperialist Russian influence?

#66 Re: Not So Free Chat » Replacing the Nuclear triad with space based nukes in high orbit. » 2014-12-16 00:54:30

Terraformer wrote:

Weeeellll... given the number of Quebecois who want to be independent, what about this scenario - the Canadian government is replaced in a revolution a year before elections are due to take place, and the government of Quebec does not recognise the new government as being legitimate. The French government send military aid to Quebec in order to prevent the new Canadian government from invading Quebec. Whilst they are there, the government of Quebec negotiates with France, who agree to a two part referendum on whether Quebec should become an independent state, and if so whether it should be joined to France.

What would your opinion be in that scenario, Tom? Should Quebec be forced to remain part of Canada?

Your analogy is missing several decades of relevant history.

Lets try it again...

After a long and bloody history with France, that within the last several decades included the mass starvation of millions of Canadians under Parisian rule and the forced depopulation of Eastern Canadian natives to make way for the Quebecois population, who exclusively served France's imperial ambitions, Canada finally gained it's independence a quarter of a century ago when the French Empire collapsed. Nevertheless, Paris continued to dominate Canada's domestic, economic and foreign policies, particularly through it's control of Canada's primary source of energy. The Canadian people sought closer economic ties with its neighbors to alleviate this, but the Ottawa government, firmly in the pocket of Paris, resisted. Taking to the streets, the Canadian people, particularly the English speaking Western population, demanded their right to self determination from Paris, which responded with a hail of gunfire. The Canadian people took back their country, chasing out the French puppet, and threatened France's control of a strategic, but redundant, naval base on Prince Edward Island that it had leased from previous friendly governments. France promptly invaded and annexed PEI, and drummed up the Quebecois in the surrounding provinces by telling them the new government in Ottawa was run by Nazi's, and promises them independence from Ottawa and glorious reunion with the Motherland, if they fight the new government and secure the Canadian Maritime for France, threatening the viability of Western Canada and it's strategic access to the Atlantic. When Canada's neighbors point out that the Canadians have the right to make economic agreements with whomever they wanted, and the France should get the hell out of PEI and stop promising the Quebecois thins they can't deliver, Paris throws a temper tantrum, declares PEI it's "holy land", and threatens anyone who says anything to the contrary with nuclear war.

Back on the topic of updating the Nuclear Triad, a fleet of satellites in high orbit would be entirely too easy to track and intercept if we actually had to use them. A multifaceted approach to defense and deterrence is needed, and not just from threats from our fellow man.

First of all, we need to acknowledge just how essential space has become to our military operations. From targeting, to communications, to reconnaissance, we would be cut off at the knees without access to our space borne assets. Dominance of cis-lunar space, and the ability to deny the same access to our enemies will be key to future conflicts. We need a dedicated Space Command service to launch, operate, and service our fleets of orbital satellites that serve our defenses and other government missions. Those defenses are not limited to surface borne threats. This branch should be tasked with monitoring space borne threats as well. One might imagine battle fleets arrayed against flying saucers full of little green men, and though that theoretically could come to pass, the primary threats are far less organic. From maintaining order among orbital objects and combating the threat of space debris, to monitoring solar activity in preparation for geomagnetic storms, to surveying, charting, and manipulating the armada of minor planets and NEO's that threaten our planet and our people where ever else they may go, this armed service will serve as the foundation of our Planetary defenses.

Closer to home, the threat of nuclear attack from less than rational actors on the world stage is, sadly, not going away. Nuclear warfare has long been split into two categories, counter force, or strikes against military targets, and counter value, or strikes against civilian, political and infrastructure targets. I don't want to have to nuke anyone. I would much rather fight a far more protracted conventional conflict, even a guerrilla action against an occupying force, than drop civilization as a whole back a few centuries. But, there are a handful of global players who may or may not see it that way, who would seek to avoid defeat in a conventional conflict by resorting to nuclear weapons. First and foremost, we must defend the homeland from this threat. Secondly, we must deter any such attempt on our territory, or against our allies or troops in the field. Finally, we must reserve the ability to retaliate against any attempt with mass destruction, but without poisoning the planet. The first step is a robust and multi-layered missile defense system, which will be incorporated into the Space Command structure. Boost Phase, Cruise Phase and Terminal Phase interceptors need to be developed and deployed in numbers that are competitive with the number of offensive missiles our enemies deploy. We can no longer afford to simply attempt to counter the so called "rouge states", as our primary nuclear rival has gone rouge. Among the most important development here is the replacement of our current arsenal of nuclear armed ICBM's with a new generation equipped with "Multiple Kill Vehicles", the MIRV'ed equivalent of the current generation of kinetic energy impactor. Our strategic nuclear deterrence, and last resort planetary defense, would be provided by a new generation of much larger Inter Planetary Ballistic Missile, perhaps the size of a Liberty rocket, housed in large silos, capable of delivering a dozen or more large nuclear devices, observing satellites, and boost stages to escape velocities, with the primary mission of nudging dangerous asteroids or comets off course. In addition, if need be, the warheads could simply reenter to any site on Earth, at will. But our primary strategic weapon of mass destruction would be a limited number of orbital kinetic impactors, not banned by any treaty, and capable of punching large craters in military or political targets alike, without the unpleasant radioactive side effects.

On the tactical side of the Triad, developments in air breathing hyper sonic missiles, like the X-51 or the Arclight missile that can strike from thousands of miles away, with either its natural kinetic punch, conventional or bunker busting warheads, or a nuclear payload, without attracting the attention of early warning sensors. These missiles, based on the SM-3 naval ABM missile, can be easily modified to be fire from any vertical launch tube in the navy, most aircraft in the Air Force, and ground vehicles similar to the Cold War era Tomahawk launchers. The most important feature however, would be the ability to quickly swap out warheads to meet the mission.

#67 Re: Human missions » Boeing's plan for Mars » 2014-12-10 20:15:28

RobS wrote:

There's also an 84-slide PowerPoint. Very interesting. Looks doable; but how expensive?

How much ya got? wink

#68 Re: Unmanned probes » Rosetta - ESA comet orbiter and lander » 2014-11-12 10:45:17

Touchdown! Rosetta's Philae probe lands on comet

ESA’s Rosetta – and her companion spacecraft – Philae – parted ways on Wednesday, ahead of a historic landing on the surface of Comet 67P/Churyumov-Gerasimenko. Philae conducted the journey towards the landing site named Agilkia, signalling back a successful landing that was the major milestone of a 10 year journey to rendezvous with the comet.
...
The events began overnight with several Go/No Go decisions for the landing attempt. Despite a few “hiccups”, the procedures finally resulted in the separation of Philae from Rosetta.

Confirmation of this – and all of the major events – took around 30 minutes to reach Earth, by which time Philae was making transitions in the post delivery phase.

Radio contact – following the expected Loss Of Signal post-sep – occurred around 10:30 GMT, ahead of the first telemetry data from the spacecraft around Noon.

There was then an anxious wait as Philae continues towards the comet.

Confirmation of the historic landing arrived back on Earth around 16:03 GMT. The actual landing took place at 15:35 GMT.

There was a short wait while telemetry confirmed the lander had fired its harpoons and had not bounced off the surface, a concern after the cold gas thruster system was classed as down ahead of the landing. Cheers confirmed all was well.

Now on the surface, Philae will transmit data from the surface about the comet’s composition, with the focus on elemental, isotopic, molecular and mineralogical composition of the cometary material, along with the the characterization of physical properties of the surface and subsurface material, the large-scale structure and the magnetic and plasma environment of the nucleus.

The detailed surface measurements that Philae makes at its landing site will complement and calibrate the extensive remote observations made by the orbiter covering the whole comet.

Well done!

#69 Re: Interplanetary transportation » Orbital-ATK Merger: A logistical juggernaut? » 2014-10-29 14:55:17

Was there ever a diagnosis on the May test failure?

If its the same issue someone is going to be in the doghouse.

#70 Re: Interplanetary transportation » Orbital-ATK Merger: A logistical juggernaut? » 2014-10-28 19:43:09

Clearly a first stage engine blowout. What surprises me is the amount of the first stage that survived the engine explosion, only to fall back and explode on the pad. That is not going to be cheap to fix.

Video

#71 Re: Interplanetary transportation » Orbital-ATK Merger: A logistical juggernaut? » 2014-10-28 16:59:03

The newly merged entity and NASA now has to deal with a lost payload and a questionable rocket...

Orbital’s Antares fails seconds into flight

#72 Re: Interplanetary transportation » COTS - status » 2014-09-17 20:02:51

RobertDyck wrote:

I agree, Dragon is great. But I'm disappointed Dream Chaser didn't get any funding. What will happen to it now?

The Europeans expressed interest in it. I doubt they have the money or desire though. The ESA discontinued its successful ATV program, despite still having perfectly good station modules in orbit.

#73 Re: Interplanetary transportation » COTS - status » 2014-09-17 09:13:25

Yet another opportunity for SpaceX to provide twice as much for half the price.

So the CST-100 is slated for an unmanned flight in early 2017, and pending success, a manned flight in late 2017. Meanwhile, the Dragon V2 has a pad abort test in November, and a launch abort test early next year, and has ample unmanned experience with a closely related vehicle. So long as everything works right the first time, I don't see any reason why the Dragon shouldn't be flying manned flights significantly earlier than Boeing, perhaps as early as the end of next year, a full two years sooner, though probably not with all the Dragons fancy landing tricks that are not necessary to compete with Boeing.

With that out of the way, we can get around to cutting a check to Bigelow for a Bravo Station.

#74 Re: Unmanned probes » Cassini-Huygens - NASA/ESA Saturn orbiter & Titan lander » 2014-07-03 16:46:28

The point seems to be to shift it into a roughly polar orbit, and eventually into the atmosphere to prevent biological contamination of the system.

#75 Re: Unmanned probes » New Horizons - mission to Pluto and the Kupier belt » 2014-07-03 16:44:09

Good signs...

Sen—The Hubble Space Telescope has successfully shown it can find new Kuiper Belt Objects (KBO) by spotting two of them in a trial run.
The achievement means it can now be used to conduct an intensive search for a suitable outer Solar System object that the New Horizons spacecraft could visit after it zips past Pluto in July 2015.
From June 16 to June 26, the New Horizons team used Hubble to perform a preliminary search to see how abundant small Kuiper Belt Objects are in the vast outer rim of our solar system.
Hubble looked at 20 areas of the sky to identify any small KBOs. The team analyzed each of pilot program images with software tools that sped up the KBO identification process.
Hubble's sharp vision and unique sensitivity allowed very faint KBOs to be identified as they drifted against the far more distant background stars, objects that had previously eluded searches by some of the world's largest ground-based telescopes.

Lets hope they find something substantial.

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