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Hubble sees boulders escaping from asteroid Dimorphos
https://www.esa.int/Science_Exploration … _Dimorphos
The 37 ejected boulders range in size from 1 m to 6.7 m across, based on Hubble photometry. They are drifting away from the asteroid at around 1 km per hour. The total mass in these detected boulders is about 0.1% the mass of Dimorphos. The boulders are some of the faintest objects ever imaged in the Solar System.
The Hera mission includes the eponymous main satellite and two CubeSats named Juventas and Milani.
Launch date October 2024 on Falcon 9
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See again what I wrote in the previous post #25.
GW Johnson
GW Johnson
McGregor, Texas
"There is nothing as expensive as a dead crew, especially one dead from a bad management decision"
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Hera’s mini-radar will probe asteroid’s heart
https://www.esa.int/Space_Safety/Hera/H … id_s_heart
The JuRa radar design – developed in IPAG in partnership with the Chair for Radio Frequency and Photonics Engineering of Technical University Dresden – is derived from a previous space radar flown on ESA’s Rosetta mission, which plumbed the depths of comet 67P/Churyumov–Gerasimenko.
IPAG has also worked on radar systems for other space missions including NASA’s Mars Reconnaissance Orbiter and ESA’s Juice.
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Planetary Defense Test Deflected An Asteroid But Unleashed a Boulder Swarm
https://science.slashdot.org/story/23/0 … lder-swarm
A UCLA-led study of NASA's DART mission found that the collision launched a cloud of boulders from its surface. "The boulder swarm is like a cloud of shrapnel expanding from a hand grenade," said Jewitt, lead author of the study and a UCLA professor of earth and planetary sciences. "Because those big boulders basically share the speed of the targeted asteroid, they're capable of doing their own damage."
https://newsroom.ucla.edu/releases/plan … n-asteroid
When it hurtled into Dimorphos at 13,000 miles per hour, DART slowed Dimorphos' orbit around its twin asteroid, Didymos, by a few millimeters per second. But, according to images taken by NASA's Hubble Space Telescope, the collision also shook off 37 boulders, each measuring from 3 to 22 feet across. None of the boulders is on a course to hit Earth, but if rubble from a future asteroid deflection were to reach our planet, Jewitt said, they'd hit at the same speed the asteroid was traveling -- fast enough to cause tremendous damage. The research, published in the Astrophysical Journal Letters, found that the rocks were likely knocked off the surface by the shock of the impact. A close-up photograph taken by DART just two seconds before the collision shows a similar number of boulders sitting on the asteroid's surface -- and of similar sizes and shapes -- to the ones that were imaged by the Hubble telescope. The boulders that the scientists studied, among the faintest objects ever seen within the solar system, are observable in detail thanks to the powerful Hubble telescope.
ESA Herra - Launch date October 2024 on Falcon 9 due to arrive December 2026
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Hera asteroid spacecraft assembled
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Hera's wings of power
https://www.spacedaily.com/reports/Hera … r_999.html
The solar wings that will power ESA's Hera asteroid mission for planetary defence as it ventures out to meet the Dimorphos asteroid have been cleared for flight.
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In 2024 the Hera mission will revisit the asteroid punched by NASA
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I think that when Hera gets there at Didymoon, it will find the evidence that proves what I said in post 25 above.
GW
GW Johnson
McGregor, Texas
"There is nothing as expensive as a dead crew, especially one dead from a bad management decision"
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NASA's asteroid blaster turned a space rock into an ‘oblong watermelon’
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There in post 34 is the proof of what I said in post 25 above.
GW
GW Johnson
McGregor, Texas
"There is nothing as expensive as a dead crew, especially one dead from a bad management decision"
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