When astronomers first spied a weird cigar-shaped object speeding past the sun last October, they could tell from its path that it had come from another star system — but they didn't know exactly what ...

Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

On October 19th, 2017, astronomers with the Pann-STARRS survey observed an interstellar object passing through our system—1I/2017 U1 'Oumuamua. This was the first time an ISO was detected, confirming ...

In July 2025, scientists discovered a mysterious intergalactic object that was "most likely" an alien ship that could reach Earth by November 2025. Rating: False (About this rating?) Rumors of an ...

NASA scientists have confirmed that a mysterious object shooting toward us through the solar system is an "interstellar object" — only the third of its kind ever seen. Experts have also given the ...

A bright flash on Saturn was captured by NASA's Mario Rana on July 5, 2025. This marks the first time we've ever seen an object crash into the ringed giant in real time. Now, astronomers around the ...

Classified data prevented scientists from verifying their discovery for 3 years. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A fireball that ...

Chris Impey receives funding from the National Science Foundation and the Hearst Foundation. Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, ...

Rumors of an incoming alien attack invaded some social media feeds in late July 2025 after the New York Post published an article about a potential "alien probe." While the article only said the ...