We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

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Muhammad Umar, who uses his mother’s Celestron telescope to view the stars, said Jupiter, the largest and oldest planet in ...

New images taken by NASA's James Webb Space Telescope show young stars forming within a "toe bean" on the Cat's Paw Nebula.

The James Webb Space Telescope ( JWST) is celebrating three years of transformational science with a striking new image of ...

In looking over the shortlist for the Astronomy Photographer of the Year 2025 competition, I thought about how I’ve seen tho ...