Mars. From forming black holes to phantom dark energy, discover the cosmic mysteries astronomers uncovered last year.

A new computational model suggests that Uranus' and Neptune's cores may be less icy than their "ice giant" nickname suggests.

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

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

Instead ChatGPT has become perhaps the most successful consumer product in history. In just over three years it has ...

Long before scientists discovered that other stars in the universe host their own planetary systems, humanity had ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter.

Physicists discovered that the famous 'Star Trek' spaceship got a lot right about designing a ship to jump from galaxy to ...

An alien flying in from space aboard a comet would look down on Earth and see that there is this highly influential and ...

The comet is the 3rd interstellar object ever detected and got its name from the ATLAS telescope that discovered it. NASA officials have rejected conspiracy theories that the object could be an alien ...

NASA's Hubble Space Telescope and an ESA orbiter bound for Jupiter both recently glimpsed 3I/ATLAS. The comet will make its closest approach to Earth in December but poses no threat and is not visible ...

We’ve likely had at least one close encounter of the 3I kind before. Harvard scientist Avi Loeb claims that not only does 3I/ATLAS potentially have alien origins, but that this wouldn’t be the first ...