Sending human travelers to Mars would require scientists and engineers to overcome a range of technological and safety obstacles. One of them is the grave risk posed by particle radiation from the sun, distant stars and galaxies.
Space Exploration
Aug 26, 2021
6
4200
Something is happening to the sun. One of the regions of the solar atmosphere currently exhibiting sunspots caught the attention of observatories on July 11, when there was a sudden increase in ultraviolet and X-ray brightness. ...
Astronomy
Jul 21, 2022
1
273
(Phys.org) -- Data from NASA's Voyager 1 spacecraft indicate that the venerable deep-space explorer has encountered a region in space where the intensity of charged particles from beyond our solar system has markedly increased. ...
Space Exploration
Jun 15, 2012
121
0
The source of potentially hazardous solar particles, released from the Sun at high speed during storms in its outer atmosphere, has been located for the first time by researchers at UCL and George Mason University, Virginia, ...
Space Exploration
Mar 3, 2021
6
11848
(PhysOrg.com) -- NASA's Voyager probes are truly going where no one has gone before. Gliding silently toward the stars, 9 billion miles from Earth, they are beaming back news from the most distant, unexplored reaches of the ...
Space Exploration
Jun 9, 2011
25
0
Early on an August morning, the sky near Cape Canaveral, Florida, will light up with the launch of Parker Solar Probe. No earlier than Aug. 6, 2018, a United Launch Alliance Delta IV Heavy will thunder to space carrying the ...
Space Exploration
Jul 20, 2018
1
703
Scientists at the University of Rochester have discovered that the Earth's magnetic field 3.5 billion years ago was only half as strong as it is today, and that this weakness, coupled with a strong wind of energetic particles ...
Earth Sciences
Mar 4, 2010
3
0
A massive eruption of solar material, known as a coronal mass ejection or CME, was detected escaping from the sun at 11:36 p.m. EDT on March 12, 2023.
Astronomy
Mar 15, 2023
0
131
The heliosphere—made of solar wind, solar transients, and the interplanetary magnetic field—acts as our solar system's personal shield, protecting the planets from galactic cosmic rays. These extremely energetic particles ...
Astronomy
Mar 29, 2024
6
1007
April 17, 2021, was a day like any other day on the sun, until a brilliant flash erupted and an enormous cloud of solar material billowed away from our star. Such outbursts from the sun are not unusual, but this one was unusually ...
Astronomy
Mar 4, 2024
0
392
