A senior official from the European Space Agency said mergers could be needed to reach the scale to compete with US and ...

Because all earthly life shares a common origin, finding a second tree of life would forever change humanity’s understanding ...

Astronomers using the Hubble Space Telescope have observed a white dwarf - a highly compact stellar ember - that appears to ...

A new study warns of an undiscovered population of asteroids that could strike Earth with little to no warning.