Where does the solar system end and interstellar space begin? That's a question scientists have been working to answer using ...

A comet born around a distant star is now tearing through our solar system at roughly 150,000 miles per hour, and astronomers ...

(International Gemini Observatory/NOIRLab/NSF/AURA/Shadow the Scientist; Image Processing: J. Miller & M. Rodriguez ...

A Jupiter-size exoplanet orbiting a dead star baffled astronomers. But the planet named WD 1856 b could preview the fate of ...

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion years old—about three times the age of the solar system ...

Along with other recent discoveries, the new finding from Perseverance boosts the case that Mars once hosted conditions that ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

The findings surprised researchers, who used the comet's composition to better understand the environment in which it formed.

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

Have you ever looked into the stars in the night sky and asked yourself questions like “What else is out there?” The universe ...

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