Six years after Voyager 1 officially left the Solar System, it looks like its companion probe, Voyager 2, is getting close to the interstellar boundary as well.

Parts of the Jupiter moon Europa's surface may be studded with jagged towers of ice, which could complicate NASA's plans to put a lander down on the potentially life-supporting moon.

Stars have planets, and planets have satellites we call moons; but can a moon have its own satellite? And if it did, what would we call it?

Elon Musk is hell-bent on colonizing Mars.

When you push the button on a laser pointer, its entire beam seems to appear instantaneously. In reality, though, the photons shoot out like water from a hose, just at a speed too fast to see.

A wee baby star at the tender age of just 2 million years has revealed itself to be quite the precocious little cosmic object.

Oops.

Four months after falling silent during a raging dust storm, NASA's Opportunity Mars rover still hasn't made a peep.

In January last year, a rocket carrying a tiny chip packed with rubidium-87 atoms was launched more than 200 kilometres (124 miles) above the planet's surface. The mission was brief, affording just six minutes of microgravity at its height.

The Kepler Space Telescope has found thousands of planets beyond our solar system in the last decade. Now it has run out of fuel and will be turned off for good

Growing food without plants or animals sounds far-fetched. But it could stop environmental destruction, says Guardian columnist George Monbiot

A major problem with Mars missions: Bringing enough fuel for a return journey.

It’s hard to define what makes something beautiful, but we seem to know beauty when we see it. Why is that and how does beauty affect our subconscious?

This video was a collaboration with the creative agency Sagmeister & Walsh as a contribution to their…

NASA's Dawn spacecraft — which orbited the two largest objects in the asteroid belt, Vesta and Ceres, during its long and accomplished life — has run out of fuel and died, agency officials announced today (Nov. 1).

On October 19th, 2017, the Panoramic Survey Telescope and Rapid Response System-1 (Pan-STARRS-1) in Hawaii announced the first-ever detection of an interstellar asteroid, named 1I/2017 U1 (AKA 'Oumuamua).

Earlier this year, scientists identified the existence of a brand new DNA structure never before seen in living cells. That's right, it's not just the double helix.

You might not realize it, but every time you stand up, your body is working behind the scenes to stop you from fainting.

The red Tesla Roadster and its mannequin driver, which launched on the maiden mission of SpaceX's huge Falcon Heavy rocket in February, have made it beyond the orbit of Mars.

Whenever we hear of stars discovered that formed just after the Big Bang, they're very far away, in the far reaches of the visible Universe. But now astronomers have spotted something new: a star that's around 13.5 billion years old, right here in