Australians will have their only chance to spy a newly discovered blue-green comet scorching past Earth during the next ...

When a hunk of ice from another star system hurtles through our cosmic neighborhood, astronomers pay attention. When that same hunk of ice starts blasting out enough water to fill 70 Olympic swimming ...

A comet from another star system is carrying water unlike anything astronomers have ever measured in our cosmic neighborhood.

A rare interstellar comet, C/2025 R3 (Pan-STARRS), is traversing our solar system, offering a unique opportunity for skywatchers to observe it. Binoculars can enhance the experience.

The Subaru Telescope achieved first light in January 1999 and entered its 27th year of operation in 2026. In March 2025, ...

Imagine a visitor from beyond our cosmic neighborhood. Not just from the next street over, but from an entirely different star system, a place we can only dream of reaching. These ancient wanderers, ...

STARRS, also known as comet C/2025 R3 (Pan-STARRS), is visible before sunrise until this weekend. Here’s how, when and where to find it on Friday, April 17.

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 ...

- Lagoon Nebula (M8) is an emission nebula in Sagittarius.

(Phys.org) —NASA today announced the end of operations for the Deep Impact spacecraft, history's most traveled deep-space comet hunter, after trying unsuccessfully for more than a month to regain ...