Harvard astronomer Avi Loeb has argued at length that 3I/ATLAS — the third-ever interstellar object ever detected, currently ...

While most scientists believe it’s a natural comet, one Harvard astronomer has suggested its unusual features could hint at ...

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

The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

A rare interstellar visitor, comet 3I/ATLAS, is currently traversing our solar system, offering scientists a unique chance to ...

Interstellar comet 3I/ATLAS is just the third such object ever confirmed to have entered our solar system. It has attracted ...

Manhattan-sized comet 3I/ATLAS — which scientists suspect could have extraterrestrial origins — will reach its closest ...

The images taken by two Mars orbiters show a bright, fuzzy white dot of the comet, also known as 3I/ATLAS, appearing to move ...

Earth and Mars were formed from material that largely originated in the inner Solar System; only a few percent of the building blocks of these two planets originated beyond Jupiter’s orbit. A group of ...

NASA’s discovery of potential evidence of ancient life on Mars means “our galaxy could be teeming with life,” says a ...

November's Sky Above episode features a supermoon, meteor shower, and interstellar comet, with experts discussing these ...

Space missions in the future could travel to Mars, asteroids and the outer solar system by riding on nuclear-powered rockets, thanks to a new design that utilizes energy from the nuclear fission of ...