No strangers to isolation, the trio left for the space station months before Covid-19 emerged.

The moon is slowly shrinking over time, which is causing wrinkles in its crust and moonquakes, according to photos captured by NASA's Lunar Reconnaissance Orbiter.

 This is the European Space Agency's spectacular new view of ocean tides as they sweep around the Earth.

 Concentrations of CO2 in the Earth's atmosphere surged to a record high in 2016, according to the World Meteorological Organization (WMO).

 The earth is on track for its hottest year on record and warming at a faster rate than expected, the World Meteorological Organization (WMO) said on Thursday.

 All gold on the Earth might have come from extreme crashes between dense dead stars, U.S. researchers reported Wednesday.

 Water on the Moon and the Earth may originally come from the same place, according to a new analysis of moon rocks.

 U.S. astronomers said on Tuesday that a recently-discovered, highly active comet will skim 1.2 million kilometers above the Sun's surface on Nov. 28 and has the potential to be readily visible from the Earth.

The search for a far-off twin of Earth has turned up two of the most intriguing candidates yet.