Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the comet in the footage. Credit: NASA/STEREO/Karl Battams | edited by Space.com's ...

Comet C/2022 E3 (ZTF) with a short third tail (to the left of the comet) and longer gas and dust tails (to the right of the comet) on Jan. 21.

C/2021 S3 PanSTARRS will safely pass by Earth this spring, and researchers are asking for help photographing the comet's journey to see if its tail has been detached by strong solar winds.

T he "once-in-a-lifetime" comet Tsuchinshan-ATLAS looks like it has grown a physics-defying second tail after reaching its closest point to Earth for more than 80,000 years, new photos reveal ...

A comet that has been on an 81,000-year journey to fly by Earth is finally arriving -- and should be visible in our skies in the upcoming days. The space rock — named Comet C/2023 A3 Tsuchinshan ...

Mercury, the solar system's smallest planet, has a comet-like tail made predominantly of sodium ions, which are scattered from the planet's surface by solar wind and micro-meteor impacts.

A surprise coronal mass ejection recently smashed into Comet 12P/Pons-Brooks, briefly causing the "devil comet" to lose its tail — and a NASA spacecraft caught the whole thing on camera.

Comet ZTF, passing near Earth on February 1, has developed a strange anti-tail. Stock image of a comet passing close by Earth. As a comet is heated by the radiation from the sun (or any other star ...

Astronomers have discovered over 100 new alien worlds so far this year — some many light-years away from Earth — that ...

The comet tail is noticeably longer each day. Pause the video at about 15 seconds . . . you can see the tail of the comet looks like it is bending.

The tail of Comet 12P/Pons-Brooks appears crooked in recent observations, likely due to a "disconnection event" caused by a CME hitting the comet. This phenomenon was observed previously with ...

Comet Nishimura is a lucky sight regardless of its unlucky tail, Ye says. The comet is relatively bright as it heads toward its closest pass by the sun on September 17, when it will be 27 million ...