A rare and mesmerizing comet event in our solar system has captured the attention of astronomers and sky-watchers alike.

Astronomers have observedunexpected activity in C/2014 UN271, the largest comet ever detected from the Oort Cloud, while it remains over a billion miles from the Sun. Using the ALMA radio telescope, ...

A colossal comet larger than some moons is now hurtling toward the inner solar system, leaving scientists in disbelief. Its icy nucleus spans tens of kilometers, making it one of the most massive ever ...

A new study has attempted to pin down the properties of interstellar comet 3I/Atlas, finding it is "anomalously massive" at around 33 billion tons. On July 1, 2025, astronomers spotted an object ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet. The comet, ...