Dwarf planet Ceres should be riddled with craters, but Nasa's scientists were surprised to find it was relatively smooth.

The NEEMO explorers say it's going swimmingly.

A scientist shares five reasons we might find alien life this century - and five we reasons we might not.

The number of operational satellites has jumped 40 percent in the past five years, with nearly 1,400 now orbit the Earth.

As the Apollo 11 astronauts hurtled toward their historic rendezvous with the moon 47 years ago this week, they kept a hand-drawn calendar on the wall of their command module.

Do we need to be worried about pieces of junk falling out of space and into our atmosphere?

A striking photograph taken from a Nasa flying observatory at a height of 44,000ft shows the extent of light pollution caused by a NZ's city's street lights.

The space robot formerly known as Kepler should have stopped working in 2013, but scientists just confirmed new planets found in its second life.

Nasa's Juno mission has survived Jupiter's extreme radiation and is getting ready to send back never-seen-before pictures of the largest planet in our solar system.

Way out in space, so far that it takes a message nearly an hour to reach earth, the Nasa craft Juno is doing what the classical mythologists anticipated.

More than 180 people have died in flooding along the Yangtze River in China after torrential rain. Eleven million dollars is going being pumped into Dunedin Hospital, for a new critical care unit.

On July 4, Juno will give us an unprecedented look at our solar system's weirdest planet.

The sun has gone completely "blank" for the second time this month.

WATCH: NASA has tested rocket boosters that it hopes will power its new rocket to fly to Mars.

The largest planet in the solar system may finally give up its secrets thanks to a new probe.

It's a scary, but potentially real threat facing the world by 2030. But one expert warns China's cyber war capabilities will be more dangerous than anything else happening today.

Super-powerful electric winds may have blown it into space.

NASA wants YOU to get amped for the "Journey to Mars".

It's morning in the Murchison, a desolate, sunbaked corner of the midwest of Western Australia, and a trio of wedge-tailed eagles are circling.

Any rocky moons orbiting the Jupiter-like planet could theoretically have liquid water.

NZ and the US sign a deal setting rules around rocket technology and providing a register on what's been blasted into space from our part of the world.

The gravitational wave detector is the "quietest place known to humankind".

The world's largest flying observatory has arrived in New Zealand for a series of cutting-edge night-flying missions to help unlock the mysteries of the universe.

A team of Kiwi scientists hope to answer some of the biggest questions about our universe, by joining one of the most ambitious astronomy projects ever undertaken.

Facebook is gearing up to live chat astronauts on the International Space Station tomorrow afternoon.

SpaceX has now landed three rocket stages.

The star wanted to join the crew of the US Space Shuttle Columbia and had hoped to join the fateful mission after being given secret training by NASA.

Scientists are travelling back more than 60 million years in history to drill deep under the ocean floor in search of clues about the event that wiped out the dinosaurs, and nearly extinguished life on earth. Source: Smithsonian Channel

Watch: Kiwi rocket tech pioneers show off the test firing of their stage 2 rocket engine.

Astronauts aboard the International Space Station (ISS) see the world at night on every orbit - that's 16 times each crew day.