Interstellar comet 3I/ATLAS may be older than our solar system, offering a rare glimpse into the early galaxy.

Tianwen-2 asteroid mission closes to within 20 kilometers of Kamoʻoalewa on July 4, 2026 — China‘s first sample-return probe ...

Our solar system is a celestial shooting gallery, chock-full of flying projectiles that one day could threaten Earth—so what ...

Astronomers studying the interstellar comet 3I/ATLAS say it could be a 12‑billion‑year‑old relic formed in near‑absolute‑zero ...

A small body in the Kuiper Belt, beyond Neptune, has exhibited an atmosphere. The last time astronomers found an atmosphere ...

The year 2023 brought us the summer of Barbenheimer, where two entirely different movies went head-to-head at the box office. But 25 years earlier, the summer of 1998 was marked by a very different ...

Last summer, a NASA-funded asteroid impact warning system detected a mysterious object speeding through the solar system. Scientists determined the object had entered the solar system from deep space, ...

New study highlights origin of comet that brought reign of dinosaurs to an abrupt end. A new study led by the scientists of Harvard University has put forth a new theory that coul ...

Comet 3I/ATLAS has much more "heavy" water than comets that formed in the solar system, according to a new study. Hans Anderson, Michigan News Our time with our interstellar visitor, comet 3I/ATLAS, ...

A newly discovered comet, C/2025 R3 (PanSTARRS), is set to pass by Earth this week. The comet will make its closest approach to Earth on April 27, coming within 44 million miles. It may be visible to ...

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. Comet C/2025 R3 (PanSTARRS) hangs above Bietschhorn in ...

A newly discovered comet, C/2025 R3 (PanSTARRS), could be the brightest of its kind visible from Earth in 2026. The comet will make its closest approach to the sun on April 19 and its closest approach ...