Solar Flare Hits Mars, Causing Radiation Spike
A recent powerful solar flare, the strongest in nearly two decades, has had significant impacts on Mars, causing widespread radiation on the Martian surface.
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A recent powerful solar flare, the strongest in nearly two decades, has had significant impacts on Mars, causing widespread radiation on the Martian surface.
NASA's fleet of robotic Martian explorers measured the effects of May's dramatic solar storms, experiencing the equivalent of undergoing about 30 chest X-rays all at once.
A heat-sensitive camera flying on NASA's Mars Odyssey orbiter has led a team of Mars geologists to find seven small, deep holes on the flanks of Arsia Mons, a giant volcano on Mars. The holes may be openings, called skylights, in the ceilings of underground caves.
On May 28, 1892, the Sierra Club was founded by naturalist John Muir.
Noctis volcano, active throughout Mars' history, lies near buried glacial ice that makes it an attractive place to search for life.