The object, estimated to be the size of a city block, is only the third known interstellar visitor to our solar system since ...

We know of three interstellar objects (ISO) that have visited our inner solar system. Oumuamua was the first one, and it came ...

NASA’s twin Voyager spacecraft have revealed surprising truths about the farthest reaches of our solar system. Nearly 15 ...

In a striking new view from space, the European Space Agency's Solar Orbiter has given scientists their first close-up ...

Something strange is moving through our solar system — and it’s making headlines everywhere. The mysterious object, known as ...

A mysterious visitor from beyond the Solar System has emerged from its solar flyby without the cometary tail astronomers ...

In the 1960s, when the possibility of an asteroid impact alarmed the American public for the first time, MIT students drafted ...

Comet Lemmon, or C/2025 A6, was discovered by the Arizona-based Mount Lemmon Survey, which observed it as an almost asteroid‐like object; it was later re-classified as a comet once coma and tail ...

Ellery suggested that building a nuclear reactor on the Moon could yield chemical signatures that could be explored in the ...

One of the largest antennas in NASA’s Deep Space Network was damaged in September and may be out of service for an extended ...

While earlier observations indicated 3I/ATLAS appeared red in color, additional analysis has led astronomers to note in a ...

"We can see that some of these jets are pointed towards the sun, and they penetrate over a million kilometers through the ...