A passing star could disrupt the orbits of the planets and cause the Earth to be flung off into deep space.
The previously unseen world is believed to orbit far out at a range of 838 times Earth's distance from the Sun.
The unknown strain of bacteria, which exists nowhere on Earth, was found aboard China's Tiangong space station.
New research has revealed just how little we actually know about what lurks in the depths of the world's oceans.
A 53-year-old Soviet satellite is expected to fall back down to Earth sometime within the next few days.
A major engineering project has proven to be so large that it has literally changed the length of a day.
Known on social media as John Moe, the man had predicted a new quake just weeks after the last one.
Once, long ago in Earth's distant past, the planet's oceans may have turned a rather unusual color.
An eagle-eyed anomaly hunter has discovered a curious tower-like structure at the secretive Area 51 base in Nevada.
While the odds of it hitting the Earth are now infinitesimally small, the odds of it striking the Moon are not.
Does a Google Earth satellite image of a door in Antarctica really show an entrance to a secret base ?
A theoretical futuristic megastructure known as a Dyson swarm could have dire consequences for our planet.
A new documentary delves deep into the US government's alleged efforts to cover up an alien presence on Earth.
Situated in Western Australia, the crater formed when the Earth was still very young some 3.5 billion years ago.
A recently unearthed photograph taken from space shows a spectacular and rarely seen natural phenomenon.
In recent weeks there had been concerns that a 200ft asteroid had a relatively high chance of striking the Earth.
It was incredibly unlikely that intelligent life evolved on our planet - but perhaps not quite as unlikely as previously believed.
Egyptian officials have revealed the discovery of the tomb of King Thutmose II near to the Valley of Kings.
An image of a strangely black and featureless anomaly captured on Google Earth has been gaining renewed attention this week.
A peculiar white, circular object or structure has left eagle-eyed Google Earth sleuths scratching their heads.