The Atacama Large Millimeter/Submillimeter Array (ALMA) in the Chilean Andes is one of the most powerful radio telescope ...

Astronomers have uncovered a massive hidden planet and a rare “failed star” by combining ultra-precise space data with some ...

The object, originating from beyond our solar system, had captured widespread attention throughout 2025—not only because of ...

As interstellar object 3I/ATLAS swept past Earth on 19 December 2025, viral theories claimed cosmic indifference or alien ...

A composite of galaxy cluster known as MACS0416 created using James Webb Space Telescope and Hubble Space Telescope imagery.

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Scientists atop Mauna Kea on the Island of Hawai’i and across the Hawaiian chain are turning their telescopes skyward Friday ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

NASA's Double Asteroid Redirection Test (DART) impacted the 'moonlet' Dimorphos in the Didymos asteroid system. NASA's Hubble ...

Interstellar comet 3I/ATLAS shows a rare sun‑facing anti‑tail, raising concerns that survey telescopes miss exotic visitors ...

An exponential increase in the number of satellites placed in low-Earth orbit has brought advances in telecommunications ...

It’s time for the final meteor shower of 2025 — the Ursid meteor shower.