It looks and behaves like a comet, and all evidence points to it being a comet.” The quote, which NASA Associate ...

NASA's Hubble Space Telescope has calculated the size of a massive comet nucleus observed last year, and it's the largest ever spotted, measuring 80 miles across —about twice the width of Rhode Island ...

The water that makes up the oceans acted as a key ingredient for the development of life on Earth. However, scientists still do not know where the water here on Earth came from in the first place. One ...

The small, icy visitor now racing away from the inner solar system is not just another comet. It is an interstellar object, ...

Interstellar comet 3I/ATLAS showed measurable water activity after passing the Sun, observed by SOHO’s SWAN instrument, ...

The article introduces "dark comets," a newly identified class of celestial bodies exhibiting nongravitational acceleration characteristic of comets but lacking visible dusty tails, unlike typical ...

Comet C/2025 A6 (Lemmon) appears in the sky above Molfetta, Italy, on October 11, 2025, around 6:00 AM to the right of the Big Dipper, before dawn. Comet C/2025 A6 (Lemmon), discovered at the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Have you seen the green comets yet? Two icy visitors from ...

The water that makes up the oceans acted as a key ingredient for the development of life on Earth. However, scientists still do not know where the water here on Earth came from in the first place. One ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...