You probably don't stop to think about this often, but right after the birth of the Universe, matter was not in the form we recognise today.

NASA's InSight lander has taken its first selfie on Mars.

The OSIRIS-REx team has two major tasks to accomplish before the spacecraft slips into orbit around the asteroid Bennu on Dec. 31.

NASA's Parker Solar Probe, the first human-made object to fly into the Sun's corona, completed its first solar flyby on November 11, collecting a wealth of unprecedented data about the workings of our magnificent home star. And now, weeks later, th

An initiative called Breakthrough Starshot wants to explore another star system using ultra-powerful laser beams and wafer-thin spaceships.

The death of a binary star can be a spectacularly violent thing.

Black holes are great at sucking up matter. So great, in fact, that not even light can escape their grasp (hence the name).

It's official: astronomers found a new dwarf planet in our Solar System - and it's the most distant object ever observed in our Solar System.

Nooooo.

Scientists have known for some time that Earth's atmosphere loses several hundred tons of oxygen each day. They understand how this oxygen loss happens on Earth's night side, but they're not sure how it happens on the day side.

While the presence of liquid water on Mars remains an ongoing topic of intense interest, we know that there is plenty of water ice adorning the Red Planet - and boy can it ever look amazing, as new images from the European Space Agency's Mars Expre

We still don't know what dark matter is, but new research has brought us closer to figuring out where it might sit.

NASA's InSight lander, which touched down on the Red Planet late last month, placed its seismometer suite onto the red dirt yesterday (Dec. 19).

An unhackable internet?

In an incredible world first, astrophysicists detected multiple planets in another galaxy earlier this year, ranging from masses as small as the Moon to ones as great as Jupiter.

According to a straightforward interpretation of general relativity, the Big Bang wasn't the start of 'everything'.

What would convince you that aliens existed? The question came up recently at a conference on astrobiology, held at Stanford University in California.