Really, except if you are born on February 29th, it means little . . . but how did it come about? Image: Shuttlecock Did you...

A composite image of one night watching the Orionids meteor shower. Flickr/Jeff Sullivan Where 2019 was a disappointing year for meteor showers, with two of...

A recently discovered black hole – found by the way it makes a nearby star wobble – is hard to square with our...

The Milky Way: a pattern of stars, or a pattern of gaps? Luke Busellato/Wikimedia Commons Almost every person throughout the existence of humankind has...

Near-Earth asteroids such as Bennu, and 2019 OK which passes close to Earth this week, pose a potential threat to our planet. NASA A...

When (if) we go back to the Moon we need some rules on behaviour. Flickr/coniferconifer, CC BY The Moon has always served as an inspiration...

Relative sizes of planets that are in a zone potentially compatible with life: Kepler-22b, Kepler-69c, Kepler-62e, Kepler-62f and Earth (named left to right;...

Finally dragged out of the shadows. Event Horizon Telescope Collaboration Black holes are long-time superstars of science fiction. But their Hollywood fame is...

The 2018 Geminids meteor shower recorded over two very cold hours on the slope of Mount Lütispitz, Switzerland.  Flickr/Lukas Schlagenhauf The year gets off to...

Earthrise: astronauts aboard Apollo 8 captured this spectacular photo of Earth rising above the lunar horizon as they emerged from behind the dark...