As comet 3I/ATLAS reaches its closest point to the sun on October 30, scientists prepare for a moment of peak activity that no one on Earth will witness. The interstellar comet will pass 1.35 ...

After weeks of reduced activity, the sun erupted with three powerful flares on a single day. That could send solar flares toward Earth, impacting electronics and making it possible to view the ...

Comet 3I/ATLAS was expected to come within 130 million miles of the sun on Oct. 30. For the time being, 3I/ATLAS will remain on the opposite side of the sun from Earth, making it impossible to observe ...

The interstellar comet 3I/ATLAS is just a day away from perihelion, which is its closest point to the sun and the time around which it is expected to be most active. Although 3I/ATLAS is currently ...

When the U.S. National Oceanic and Atmospheric Administration's (NOAA) weather satellite GOES-19 turns its gaze toward the sun, scientists don't expect to see our home planet. But there it was ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet. The comet, ...

ESA’s Solar Orbiter has given scientists their first clear view of the Sun’s poles, a region that has long remained hidden from observation. The findings reveal unexpected plasma flows and magnetic ...