Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

On Monday night, someone placed a peculiar bet on the prediction market Kalshi. At 7:45 p.m. eastern time, a single trader put down nearly $100,000 on the claim that, by the end of December, the Trump ...

If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 ...

Can NASA and Elon Musk get us to Mars and beyond?

Green Bank Telescope rules out alien signals in interstellar comet 3I/ATLAS after rigorous scientific deep search.

Some mysteries fade with time. Others linger for decades, haunting the people who remember them. So, we asked members of the BuzzFeed Community to share the unsolved cases they can’t stop thinking ...