The universe

For Earth Day this year, the Google doodle is highlighting areas of our planet it sees itself in.

Six newly selected NASA airborne campaigns will focus on a range of studies focusing on Earth and its changing climate.

Space mysteries The Apollo program put humans on the moon in 1969. So why haven't we sent any more since?

Comet 12P/Pons-Brooks visits the inner solar system every 71 years and will reach its closest to the sun on Sunday (April 21), appearing bright enough to possibly be seen by the naked eye.

NASA's Juno probe continues to give us more insight into Jupiter and the giant planet's moons, including Io, the most volcanically active object in the solar system.

NASA's history-making Ingenuity helicopter covered a lot of ground on Mars over the past three years, as a new video shows.

This NASA space-based observatory video shows 'Devil Comet' 12P/Pons-Brooks passing past bright Jupiter while the sun explodes in the distance.

A pair of small experimental satellites have begun tests related to future lunar communication and navigation services for China's moon ambitions.

The U.S. could lose its decades-old leadership in space exploration and technology to China.