Explore the Solar System in this video, which demonstrates the relative sizes of the planets and their distances from the Sun ...

Comets are loose collections of ice, dust and frozen gases left over from the solar system's formation 4.6 billion years ago.

What is behind the surge in ufology? The recent spike can be traced to the top of the US government, which inspired me to start investigating ...

Earth Day is April 22, but activities begin this weekend.

Nasa hails a "textbook" splashdown in the Pacific Ocean after the four astronauts travelled further from Earth than any ...

Eisenhower Library to bury a time capsule. Among them was Bob Murching, the sophomore who had bought the fireproof safe from ...

ESA shared rare footage of comet C/2025 K1 (ATLAS) breaking apart in November 2025 Hubble Space Telescope captured the comet ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

New panoramic views from NASA's Curiosity and Perseverance rovers reveal dramatically different Martian terrains shaped by ...