space-science

Earth’s escape velocity is approximately 25,020 miles per hour (about 11.2 kilometers per second) at the surface. This is the minimum speed an object needs, solely from its in...

A year on Mars lasts about 687 Earth days, or roughly 1.88 Earth years. This means Mars takes nearly twice as long as Earth to complete one orbit around the Sun. The Martian yea...

One Martian year equals about 668.6 Martian solar days, called sols, which corresponds to roughly 687 Earth days or 1.88 Earth years. This duration reflects Mars’ orbital peri...

Cassini’s final image was a mosaic captured on September 14, 2017, hours before the spacecraft entered Saturn’s atmosphere. Taken from about 390,000 miles (628,000 kilometer...

The atmosphere of Mars is a thin carbon dioxide–dominated envelope with a surface pressure around 0.6% of Earth’s, producing a cold, dry environment with pronounced seasonal...