Perihelion is the point on an orbital course that brings a body closest to the sun. C/2025 K1 (ATLAS) is an Oort cloud comet ...

Comet Lemmon can be found west of the Big Dipper, beyond bright star Arcturus, while Comet SWAN is moving towards Saturn, and ...

Contrary to claims that 3I/ATLAS is no longer from Earth, space experts claim that the Manhattan-sized comet can now be ...

Stargazers can look forward to bright fireballs lighting up the November sky as the Earth passes through debris left by comet ...

Comet 3I/ATLAS isn’t hiding from view; it has been coming from behind the Sun, making it hard for ground-based telescopes to track. That’s why we haven’t seen much of it yet. So no, this doesn’t mean ...

Comet 3I/ATLAS, which made a close approach to the sun, has prompted lots of public interest. Kim Kardashian asked NASA's ...

Comets Lemmon and SWAN are soaring past Earth in a rare cosmic treat. Here's best viewing times, tips and more in ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

A rare green Hallowe’en comet will be visible in the night sky over the next few weeks before it vanishes for 1,300 years.

Stargazers in Philadelphia and beyond will be treated to a rare celestial sight on Tuesday when Comet Lemmon makes its ...

Comets Lemmon and SWAN are nearing Earth in a rare double cosmic treat. Where and what time can you see them? What to know.

A massive comet known as 3I/ATLAS that was first discovered zooming across the solar system over the summer showed signs of ...