Nasa's Kepler telescope has discovered more than 100 Earth-sized planets orbiting alien stars.

NASA researchers have detected atomic oxygen in Mars' atmosphere for the first time in 40 years, thanks to the Stratospheric Observatory for Infrared Astronomy (SOFIA) which soars on a plane 13.7 kilometres (45,000 feet) above Earth, reports Science Alert.

Curiosity is a rover exploring Gale Crater on Mars as part of NASA's Mars Science Laboratory mission. Let’s take a closer look into the Martian land, more specifically its dunes.

Rocks on the surface of Mars have provided the best clue yet that the red planet once had an atmosphere rich in oxygen.

There’s no bursting this bubble. The folks at the Hubble Space Telescope have released magnificent images of a “gigantic cosmic soap bubble” to celebrate Hubble’s 26th anniversary in space.

A roughly 2,000-square-mile block of ice just broke off in the Arctic Ocean.

NASA's Mars Reconnaissance Orbiter (MRO) begins its visit to the red planet 10 years ago this week.Since then, the MRO completes about 45,000 trips around Mars, taking more than 200,000 images of it and other objects in the vicinity, according to NASA.

Humans could detect two types of aliens within the next century. These are primitive, microbial life forms within our solar system and an intelligent, advanced alien race that could turn our entire way of life upside down.

US astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko have touched down on Earth after almost a year in space.

NASA just released incredible new photos of Pluto’s north pole, and they seem to raise more questions about this icy planet.

NASA, the US space agency, together with Lima's International Potato Center (CIP) is conducting the pioneering experiment to determine whether potatoes are fit to grow on Mars.

If you have ever struggled getting hold of a spare part for an appliance, consider the astronauts on the International Space Station (ISS), where deliveries are not exactly regular, and postage is rather extortionate.

Images from NASA’s New Horizons mission suggest that Pluto’s moon Charon once had a subsurface ocean that has long since frozen and expanded, pushing outward and causing the moon’s surface to stretch and fracture on a massive scale, according to NASA.

The January figures are in, and Earth's string of hottest-months-on-record has now reached nine in a row. But NASA said January stood out: The temperature was above normal by the highest margin of any month on record.

A photo of a galactic merger captured by the Hubble Space Telescope shows a galaxy known as NGC 1487, located 30 million light-years away from Earth, but rather than viewing it as an object, NASA said it can be thought of as an "event."

NASA’s Jet Propulsion Laboratory has today released a new 360-degree video which gives a virtual tour of the Martian surface, reports the Tech Crunch. The video has been created by stitching together the images taken by the Mars Curiosity Rover on December 18th, 2015.

For her lengthy list of achievements in science, a Cuban-American woman is speculated to be the next Albert Einstein, reports Vibe.

The successor to the Hubble Space Telescope is reaching some key milestones in its preparation for launch in 2018.

Last year wasn't just the Earth's hottest year on record — it left a century of high temperature marks in the dust.

An orbiting Nasa satellite has spotted an ancient, dried-up river on Mars - with the sort of branching tributaries we see in rivers on Earth.