You are not logged in.
Hidden Turbulence in The Atmosphere of The Sun Revealed by New AI Model
Offline
Like button can go here
A large solar storm could knock out the power grid and the internet
https://www.spacedaily.com/reports/A_la … t_999.html
On Sept. 1 and 2, 1859, telegraph systems around the world failed catastrophically. The operators of the telegraphs reported receiving electrical shocks, telegraph paper catching fire, and being able to operate equipment with batteries disconnected. During the evenings, the aurora borealis, more commonly known as the northern lights, could be seen as far south as Colombia. Typically, these lights are only visible at higher latitudes, in northern Canada, Scandinavia and Siberia.
What the world experienced that day, now known as the Carrington Event, was a massive geomagnetic storm. These storms occur when a large bubble of superheated gas called plasma is ejected from the surface of the sun and hits the Earth. This bubble is known as a coronal mass ejection.
Last edited by Mars_B4_Moon (2022-03-19 15:44:41)
Offline
Like button can go here
SolarOrbiter is heading for its closest approach of the Sun yet:
https://twitter.com/ESASolarOrbiter/sta … 6957716482
on 26 March it will pass within ~50 million km (inside the orbit of Mercury) collecting data on our nearest star.
Offline
Like button can go here
Scientists solve solar secret
Offline
Like button can go here
Plasma ejections from the sun could cause damage on Earth, scientists say
https://www.spacedaily.com/reports/Plas … y_999.html
Scientists say that the solar activity -- called a geomagnetic storm -- will produce a magnetic discharge and send it in the direction toward Earth. In other words, essentially, that means that increased activity on the sun will eject significant amounts of Coronal Mass Ejection with high-intensity energy toward the Earth and other inner planets.
Coronal Mass Ejections are expulsions of plasma and magnetic field from the sun's corona -- the bright, shiny outer crown of the star at the center of our solar system -- into space. And when they are ejected toward the Earth, they can interfere with the planet's magnetic surface in an exchange of energy and cause certain damage.
NASA and the National Oceanic and Atmospheric Administration have been tracking emissions of Coronal Mass Ejections, which see billions of tons of plasma from the sun and its embedded magnetic field arrive on earth.
Solar activity has intensified over the past several weeks as the sun approaches the Solar Maxima, the period of greatest activity during the sun's 11-year cycle.
Offline
Like button can go here
Ice holds evidence of ancient, massive solar storm
Offline
Like button can go here
How To Anticipate A CMEs' Arrival Time
Offline
Like button can go here
Satellites can get lost in major solar storms and it could take weeks to find them
Offline
Like button can go here
Huge, potentially disruptive sunspot will swing round to face Earth this weekend
Offline
Like button can go here
NASA heliophysics smallsats to share launch with astrophysics mission
Offline
Like button can go here
Gaia reveals the past and future of the Sun
https://www.spacedaily.com/reports/Gaia … n_999.html
'From this work, it becomes clear that our Sun will reach a maximum temperature at approximately 8 billion years of age, then it will cool down and increase in size, becoming a red giant star around 10-11 billion years of age. The Sun will reach the end of its life after this phase, when it eventually becomes a dim white dwarf.'
Finding stars similar to the Sun is essential for understanding how we fit into the wider Universe. "If we don't understand our own Sun - and there are many things we don't know about it - how can we expect to understand all of the other stars that make up our wonderful galaxy," says Orlagh.
It is a source of some irony that the Sun is our nearest, most studied star yet its proximity forces us to study it with completely different telescopes and instruments from those that we use to look at the rest of the stars. This is because the Sun is so much brighter than the other stars. By identifying similar stars to the Sun, but this time with similar ages, we can bridge this observational gap.
To identify these 'solar analogues' in the Gaia data, Orlagh and colleagues looked for stars with temperatures, surface gravities, compositions, masses and radii that are all similar to the present-day Sun. They found 5863 stars that matched their criteria.
Offline
Like button can go here
China’s Sun-probing satellite achieves 5 historic ‘firsts,’ data shared globally: developer
Offline
Like button can go here
Solar Orbiter solves magnetic switchback mystery
https://www.spacedaily.com/reports/Sola … y_999.html
Offline
Like button can go here
Solar Orbiter Captures the First Ever Image of a Magnetic Solar Switchback on the Sun
Offline
Like button can go here
China’s first solar observatory aims to solve mysteries of the Sun’s eruptions
Offline
Like button can go here
Images From Three Telescopes Merged Into One Spectacular Picture of the Sun
Offline
Like button can go here
China and Europe team up on prototype satellite test before joint SMILE space mission in 2025
It marks first time a satellite made in China is shipped to European Space Agency, and for a Chinese team to help assemble and test at an ESA facility. SMILE is expected to launch atop a Vega-C rocket from Europe’s spaceport in South America, around April 2025
The solar wind magnetosphere ionosphere link explorer, or SMILE, has been designed and developed jointly by the Chinese Academy of Sciences (CAS) and the European Space Agency (ESA) since 2015 to create the most powerful tool for studying the Earth’s magnetic environment.
https://www.scmp.com/news/china/science … ssion-2025
This month, a Chinese team travelled to Noordwijk in the Netherlands to work with colleagues at the European Space Research and Technology Centre under the ESA.
APOD
'Our Increasingly Active Sun '
https://apod.nasa.gov/apod/ap230222.html
Last edited by Mars_B4_Moon (2023-02-22 08:17:46)
Offline
Like button can go here
For Mars_B4_Moon re #117
Thanks for this report of scientific collaboration between China and Europe!
It is good to see this while so many other relationships are competitive or unpleasant at the present time.
Thanks too, for the earlier post about the merged telescope views of the Sun!
(th)
Online
Like button can go here
NASA Notes Parker Solar Probe Instrument Temporarily Offline
Offline
Like button can go here
The latest image from NASAWebb features a blooming Wolf-Rayet star, 15,000 light-years away
https://twitter.com/NASA/status/1635702613311123456
In this SpaceSparks episode we explore the stunning Wolf-Rayet star WR 124, captured by Webb in unprecedented detail.
https://twitter.com/ESA_Webb/status/1635732536793104385
Something flying out of the Sun two days ago at 1% the speed of light
'The CME that left the sun 2 days ago produced a full halo coronal mass ejection on the Soho coronographs, and was clocked at over 3000 km per second.'
'A bit of an anomaly caught the eyes of NASA solar science specialists'
https://610kona.com/washington-and-all- … -a-bullet/
In solar physics, a solar particle event (SPE), also known as a solar energetic particle (SEP) event or solar radiation storm, occurs when protons emitted by the Sun, mostly become accelerated either in the Sun's atmosphere during a solar flare, or in interplanetary space because of a coronal mass ejection (which is what happened two days ago). Energetic protons are a significant radiation hazard to anything in space, including satellites.
This disturbance is continuing though today, and this despite the fact that the solar flare/coronal mass ejection occurred on the opposite side of the Sun from Earth. The continued storm conditions into today are shown below.
Last edited by Mars_B4_Moon (2023-03-14 17:52:26)
Offline
Like button can go here
Even the Calmest Red Dwarfs are Wilder than the Sun
Offline
Like button can go here
A 'hole' 30 times Earth's size has spread across the sun, blasting solar winds that'll hit our planet by end of this week
https://www.yahoo.com/lifestyle/hole-30 … 19585.html
‘Hellish’ solar tornado erupts 74K miles high: ‘Never seen anything like it’
https://nypost.com/2023/03/20/hellish-s … g-like-it/
Offline
Like button can go here
'The Northern Lights could dazzle the skies from Washington to New York on Friday, blown by winds from a giant 'hole' on the sun'
https://news.yahoo.com/northern-lights- … 03953.html
Maybe another look at radiation protection for Mars and that Lunar station around the Moon
Offline
Like button can go here
Northern Lights spotted on a flight between Toronto and Ontario
https://twitter.com/CitizenFreePres/sta … 6515379202
The Southern Lights, or Aurora Australis
https://twitter.com/RobMayeda/status/16 … 4107323392
'Last night was nothing short of spectacular! The aurora borealis put on an unforgettable show. Below are three shots from Hallow Rock on the north shore of Minnesota. I have never seen this red of an aurora before, so many colors accompanying the normal green'
https://twitter.com/HeitmanJake/status/ … 4392092672
'Seeing the Northern lights auroraborealis on a flight from LA to PHX is CRAZY. That’s so far south. tonight was wild'
https://twitter.com/dakotasnider/status … 1859408897
Last edited by Mars_B4_Moon (2023-03-25 07:45:57)
Offline
Like button can go here
The Sun is a normal star after all
https://www.spacedaily.com/reports/The_ … l_999.html
Using data from the Kepler, Gaia, and SOHO satellites, a research team led by Angela Santos from the Instituto de Astrofisica e Ciencias do Espaco (IA) has seemingly put an end to the notion that the Sun might not be a typical "sun-like" star.
Last edited by Mars_B4_Moon (2023-04-10 16:57:07)
Offline
Like button can go here