Interstellar invader Comet 3I/ATLAS is still full of surprises — an unexpected brightening has scientists baffled ...

Interstellar comet 3I/ATLAS on Wednesday reached its closest point to the Sun, a point known as perihelion. Although this ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

As a joke, she labelled it LGM 1 for “Little Green Men”, but the astronomers working on it did not really believe they had ...

When Comet 3I/ATLAS roared into the solar system this summer, it launched a scientific scramble to study what astronomers ...

A mysterious interstellar comet has reignited a fierce debate among astronomers, and now, Elon Musk has entered the fray.

I/ATLAS was recorded by several objects as it made its close pass by the sun this week which resulted in the jarring ...

Earth's water may contain atoms that originated from icy interstellar dust billions of years before the planet existed, according to new research. Credit: NSF / AUI / NSF NRAO / P. Vosteen / B. Saxton ...

Astronomers are hustling to use interplanetary spacecraft to study the interstellar comet dubbed 3I/ATLAS while the sun is hiding it from Earth ...

The interstellar comet 3I/ATLAS may be out of view of Earth, but orbiters on Mars were able to recently get a look at it.

Scientists have been searching for radio signals from hypothetical alien civilizations using radio telescopes for decades.

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...