A deceptive difference having to do with Earth's and Mars's gravity may be the reason why NASA's rovers get stuck in the otherworldly sands.

The Eris rocket struggled to clear the launch tower during its long-awaited debut.

There could be life as we know it, or rather as we don't know it, forming on Saturn's largest moon.

To get started, all you need is a standard A4 sheet of paper and the folding skills of a 4-year-old.

The finding suggests a pair of gigantic Fermi bubbles in our galaxy formed after the dinosaurs.

Named Ammonite, the distant object casts doubt on the existence of the elusive Planet Nine.

Two aircraft will fly at lower altitudes than most planes, circling and doing vertical spirals.

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.