The European Space Agency has launched two atomic clocks on a SpaceX rocket to the ISS to test Einstein's theory of ...

On Monday, the European Space Agency (ESA) launched the ACES set of atomic clocks. It will be docked to the International ...

Einstein’s general theory of relativity, which is used to describe the gravity of black holes ... be observed from outside the black hole, according to relativity. (Quantum mechanics introduces ...

These series of step-like bursts happen so rapidly that they are difficult to observe as these singularities wink in and out ...

Astronomers have detected a lone black hole drifting through the Milky Way—an unprecedented discovery made possible by ...

To mark the 35th anniversary of the Hubble Space Telescope, Space.com looks at some of the most scientifically significant images that have emerged from the observatory's lens.

A bold new theory suggests the universe didn’t begin with a single Big Bang, but instead unfolds through a series of ...

NASAs Lucy spacecraft has successfully completed a close flyby of asteroid (52246) Donaldjohanson, located in the main ...

NASA’s Lucy spacecraft successfully flew past asteroid Donaldjohanson, collecting data and images of the second of its 11 ...

Under the conditions of the Hamiltonian principle, information is exchanged between two masses during an interaction by ...

Last month, the European Space Agency (ESA) released a huge dataset from its space telescope Euclid. The release featured ...