Hundreds of mysterious objects have appeared in images captured by the Webb space telescope. The curious dots could reshape ...

3I/ATLAS is surrounded by “a complex jet structure,” new images show, sparking fresh speculation that the Manhattan-sized interstellar object could be an artificial alien craft. The images, captured ...

Interstellar object 3I/ATLAS is expected to reach its perihelion, or the closest point to the Sun in its highly eccentric path through our solar system, on October 29. Earlier this week, it reached ...

3I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some researchers suggest it could even be alien-made, drawing comparisons to probes ...

A new analysis of our solar system’s interstellar interloper, 3I/ATLAS, reveals that it’s spewing huge amounts of water — and astronomers can’t immediately explain why. The object, which is widely ...

(WFSB) - Viewers spotted a mystery object that appeared in the sky over Connecticut on Tuesday night. Channel 3 viewers sent in photos of it through social media. Viewers reported that the photos were ...

A celestial object some 15,000 light-years away is emitting bright flashes of radio and X-rays that scientists are struggling to explain One of the strangest cosmic objects ever seen just got even ...

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Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

Every day in the U.S., at least one patient leaves a surgery with something unintentionally left behind. From sponges used to absorb blood to broken surgical tools, these forgotten objects can linger ...