Active galactic nuclei (AGN) are among the most energetic phenomena observed in the universe. These luminous objects, powered ...

The Priority Mail 'Spiral Galaxy' and Priority Mail Express 'Star Cluster' stamps are now available in panes of four at post ...

How do images taken by the James Webb Space Telescope (JWST) appear so colorful, and where do the colors come from?

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

Earth along with some other planets in our solar system have jet streams too. They're like rivers of high-speed atmospheric ...

Discover the stunning 2500-megapixel photomosaic of Andromeda, created from 600 Hubble photos, showcasing the telescope's ...

Explore the extraordinary weather phenomena on WASP-127b, where supersonic winds reach speeds of 33,000 kilometers per hour.

Venus, Mars, Jupiter and Saturn parade through our skies this January. The best telescopes for seeing planets can help you spot them! This January there are plenty of planetary events to observe ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

NASA's James Webb Space Telescope has captured highly detailed images showing the complex layers of interstellar dust and gas ...