Wondering whether to open Dialga or Palkia Space-Time Smackdown packs in Pokémon TCG Pocket? Here's a complete guide.

An HTC headset designed to work in space is offsetting the physical and psychological challenges of humans living off-world.

A rare celestial event is captivating stargazers as six planets align in a striking display, says Professor Chandana ...

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, ...

Discoveries of clay minerals in Martian mounds by researchers indicate that Mars once had large bodies of water billions of ...

This week, meet a big-brained ancient human relative, hear a meteorite as it lands on Earth, spot a tiny kangaroo-like marsupial, and more.

Thousands of mysterious clay mounds found on Mars were formed by ancient water on the Red Planet's barren northern plains, ...

The area containing the clay-bearing mounds is geologically connected to Oxia Planum, which is where Rosalind Franklin will be headed when it launches in 2028 in search of past life on Mars. It now ...

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic ...

There is already water on Mars, but it is in the form of ice and mixed with carbon dioxide. According to NASA, they are ...

NASA's achievements, from the iconic Apollo missions to the James Webb Telescope, have redefined space exploration and ...

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.