Leaving the solar system behind, this video dives into the staggering distances between stars, galaxies, clusters, and ...

Astronomers analyzing data from Vera C. Rubin Observatory have discovered the fastest-ever spinning asteroid with a diameter ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

Rockets are incredibly powerful. You can launch yourself into orbit, fly to the Moon and, soon enough, travel to Mars. But to go beyond our Solar System, you're going to need something else. Solar ...

I/ATLAS, a rare interstellar comet, may predate the Sun. Scientists study its ancient material, offering unprecedented ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...

I/ATLAS is old news; NASA's discovery of the mysterious starless object Cloud 9 is rewriting cosmic theory. Here is what ...

In 2026, there will be journeys to the moon and Mars, new visions of the cosmos and a solar eclipse that might be worth ...

Space experts are in shock after seeing eight new high-definition photos of a visitor from another star system. The object, ...

NASA and SETI experts scan interstellar visitor 3I/ATLAS for alien 'technosignatures' as scientists say the 137,000mph object ...