Having originated from the distant Oort Cloud, the comet is making its closest approach to the Sun this week following which it would be ejected from our solar system forever.

"We hope to gain a deeper understanding of how planetesimals and planets formed in a wide variety of stellar systems, including our own solar system."

SOHO, STEREO, and PUNCH show different perspectives of the Kreutz sungrazing comet’s dramatic end.

Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one.

Interstellar comet 3I/ATLAS is now on its way out of our solar system, never to return. The comet was only the third-ever detected object to originate from outside our solar system. Traveling at high speeds,

A new comet, R3 (PanSTARRS), should be visible to the naked eye in the pre-dawn sky through mid-April. The comet will be visible in the eastern sky near the constellation of Pegasus until about April 20.

If you've ever wanted to spot a comet without a telescope, this is your week. For those interested more in the skies than the ground you stand on, look up at Comet C/2025 R3 (PANSTARRS), a visitor from the far edges of our solar system that's putting on a ...