space weather
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A Mars Rover Saw Enormous Dark Patches on the Sun, and Now They’re Visible From Earth
A striking set of gigantic sunspots, first spotted from Mars and now designated AR3576, is currently facing Earth, capturing the attention of astronomers, space enthusiasts, and concerned space weather forecasters. The cluster, nicknamed the “Martian sunspots,” was first discovered by NASA’s Perseverance rover using its MastCam in the final week of January. Since this initial…
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NASA Spacecraft Will Reunite With Earth After 17 Years of Studying the Sun
For the past 17 years, a lone spacecraft has been following Earth’s tracks in its orbit around the Sun and capturing unprecedented views of our host star. Now, STEREO-A has finally caught up with its home planet, lapping us in our cosmic trail and meeting the Earth for a brief rendezvous. On Saturday, NASA’s STEREO-A…
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Missions to Mars Shouldn’t Exceed Four Years Due to Radiation Risks, Scientists Say
An international collaboration of scientists say it’s safe for astronauts to fly to Mars and back, provided the length of the mission does not exceed four years and that crewed flights to the Red Planet coincide with a well-known solar cycle.
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NASA Space Weather Satellite Set To Launch Today, Finally
NASA is ready to launch its space weather-measuring satellite today, following two years of delays.