Hubble spots galaxies in close encounter

The NASA/ESA Hubble Space Telescope has produced this vivid image of a pair of interacting galaxies known as Arp 142.

Explore Mars surface yourself: Pan and zoom new billion-pixel view

NASA's Mars rover Curiosity offers armchair explorers the next best thing to being there.

The fast winds of Venus are getting faster

Since the 1960s, we've known the winds of Venus "super-rotate," or blow faster than the planet rotates. Now a spacecraft has found Venus' winds are speeding up.

Got something to say to an alien? Lone Signal can beam your message

Their new website launched today, so you can be among the first to compose a message to a distant civilization.

Cells play tag to determine direction of movement

Researchers have found that cells in our bodies carry out something similar to a game of tag to coordinate their movement in a particular direction.

Video: How black holes emit x-rays

At team of astrophysicists says it has shown, for the first time, that high-energy light emission is not only possible, but inevitable when gas is drawn into a black hole.

Two video feeds: The International Space Station in real time

To see our home planet from above - in real time - is awesome. Livestream video from ISS here, plus we link to a page showing the space stations's current position.

Temperatures in Mars’ atmosphere rise and fall twice a day

Temperatures swing by as much as 58 degrees Fahrenheit (32 kelvins) in this odd, twice-a-day pattern on the planet Mars.

Stacking up a clearer picture of the universe

Researchers have proven a new technique that will provide a clearer picture of the universe’s history and be used with the next generation of radio telescopes such as the Square Kilometre Array (SKA).

Sculptor galaxy black hole is sleeping, NASA says

It's about five million times the mass of our sun, at the center of a galaxy 13 million light-years away. Scientists want to be watching when it wakes up.