The mysterious planet Nibiru has fueled apocalyptic theories, from a potential Earth collision to links with ancient aliens.

So, if some of a comet’s mass suddenly disappeared one day, its orbital period should remain unchanged. In the real world, however, mass does not simply disappear — it has to go somewhere.

Thursday night could be one of the last nights you'll be able to see a super rare comet and its bright tail streaking across the Australian skies. It's called Comet C/2024 G3 (ATLAS) and for the ...

After an extraordinary year of watching full moons, eclipses, meteors and northern lights, a comet will be viewable right off the bat in 2025. It's called comet C/2024 G3 (ATLAS), which Space.com ...

In the second week of 2025, we could see a new object grace the skies as comet ATLAS (C/2024) G3 gets close to the sun. In the wake of comet C/2023 A3 (Tsuchinshan–ATLAS) in October, comet G3 is ...

Related: Rare display of northern lights and Perseid meteor shower delights skywatchers worldwide (photos, video) — When: July 14 to August 24 — Peak: Aug. 11-12 — Comet of origin ...

Comet C/2024 G3 has mesmerized astronomers and amateur skygazers for months as the world tried to spot the bright comet in the sky nearing its fatal encounter with the Sun. The comet discovered last ...

If it survives its unusually close passage of the Sun, Comet C/2024 G3 has the potential to become the brightest comet of 2025, reaching a magnitude of -4.5—about the same brightness as Venus.

Scientists have imaged exocomet belts around 74 stars, revealing tiny pebbles that shed light on planetary formation. The study shows that belt structures vary widely, hinting at hidden planets ...