The moment an object from another star system appears in survey data, astronomy shifts into sprint mode. Interstellar ...

The interstellar comet 3I/ATLAS was confirmed in July 2025 as the third known object to visit our solar system from interstellar space. Despite conspiracy theories, scientists say 3I/ATLAS shows all ...

The comet formed in a cold and distant part of the early Milky Way up to 12 billion years ago, putting it just under 2 ...

The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's ...

It ain't from around these parts of space.

In late 2025 a mysterious comet flew between the orbits of Earth and Mars and reached a speed of more than 150,000 miles per ...

Interstellar objects move too fast and arrive too rarely for astronomy to rely on a single instrument or a single kind of light. When comet 3I/ATLAS was first reported on July 1, 2025, observatories ...

Learn how ALMA observations revealed unusually high levels of methanol in interstellar comet 3I/ATLAS and what the molecule’s chemistry may reveal about how icy bodies form around other stars.

Comet 3I/ATLAS continues to make astonishing headlines, thanks to new findings from astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA). This new research reveals that 3I/ATLAS ...

Discover the rare interstellar comet 3I/ATLAS, captured by a Jupiter-bound spacecraft. Learn how this visitor from outside ...