A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...

A newly discovered comet, 3I/ATLAS, may be the most ancient visitor ever detected, potentially older than our solar system itself. Unlike previous interstellar objects, this ice-rich comet seems to ...

Astrophysicists suggest our galaxy may lie inside a "cosmic void" - offering a new explanation for the universe’s conflicting ...

Figuring out the ages of stars is fundamental to understanding many areas of astronomy – yet, it remains a challenge ...

Figuring out the ages of stars is fundamental to understanding many areas of astronomy - yet, it remains a challenge since ...

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

“This pioneering interstellar navigation demonstration and its accompanying publication show that a deep-space mission can ...

The James Webb Space Telescope (JWST), launched in 2021, is currently the most powerful space observatory ever built.

A theory by Albert Einstein has helped astronomers discover a rare exoplanet, sparking new ideas of where they can be found.

The European Space Agency’s Gaia mission has discovered an unusual Milky Way star family, Ophion, that will disperse in record time.

After more than a decade of mapping billions of stars across the Milky Way and beyond, a groundbreaking spacecraft is retiring. The European Space Agency’s space-based observatory known as Gaia ...

Astronomers bid an emotional farewell to Gaia, expressing their gratitude for its more than decade-long mission that gave us groundbreaking insights into our home galaxy, the Milky Way.