From ice ages to asteroid strikes, an epic book shows how important it has been for humans to look outwards. Alex Wilkins ...

A baby sunlike star blowing a bubble of hot gas called an “astrosphere” was captured for the first time by NASA’s Chandra X-ray Observatory ...

The last time the sun's face was perfectly spotless was on June 8, 2022, more than 1,355 days earlier. The sun's visible disk ...

Solar Cycle 25 has reached its most active phase, bringing stronger solar flares and geomagnetic storms that may affect Earth’s technology.

If you think auroras on Earth are a strange and mesmerizing sight, that's nothing like what occurs on the perplexing world of Uranus.

Fresh observations from the James Webb Space Telescope show how vivid auroras surge through Uranus’s tilted magnetic field ...

Titan, the largest moon of Saturn, may have been even more instrumental to the system’s evolution than we thought, forming ...

For the first time, a much younger version of the sun has been caught red-handed blowing bubbles in the galaxy by astronomers using NASA's Chandra X-ray Observatory. The bubble—called an "astrosphere" ...

New observations of Ganymede reveal a striking similarity between the auroras on the largest moon in the solar system and those on Earth. The international team of astrophysicists, led by researchers ...

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice ...

The discovery of interstellar comet 3I/ATLAS last year provided insights into a never-before-seen object. It's different from the two known other interstellar interlopers that we ...