In the spirit of the season, the interstellar comet 3I/ATLAS is changing color as it leaves the sun behind — shifting from a ...

On Earth, the Sun often appears yellow or even orange and red, particularly at sunrise and sunset. This visual shift occurs ...

Sunlight looks smooth and white to the naked eye, but when I break it apart with a prism or a spectrograph, it turns out to ...

One of the best visualizations ever produced of the spectrum of light from our glorious Sun reveals some mysterious holes in ...

Mars at sunset reveals dozens of razor-thin atmospheric layers in stunning detail, helping scientists map dust and ice ...

Comet 3I/ATLAS is now moving out of the Solar System, but its closest passage to Earth is still a few days away. On December ...

For the first time, scientists have created detailed, 2D maps of the sun's outermost atmosphere. This feat was accomplished ...

There may be no enterprise that lends itself so well to the camera as space travel. The universe is a riot of color and light ...

Activity on the sun is not constant; it varies along a cycle of about 11 years. The peak of this solar cycle — called solar ...

NASA's PUNCH mission is photographing the Sun like never before. It can see comets that are invisible to every other ...

While NASA's James Webb Telescope and other instruments have already spotted abundant water vapor, carbon monoxide and carbon ...

The designation and an accompanying property tax break will assist a plan to bring a Barnes & Noble to the historic location.