A whole universe of hidden galaxies lies just beyond what the eye can see. Thanks to a new generation of space telescopes, ...

According to science, time travel is based on Einstein’s theory of special relativity, which he published in 1905. The German ...

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

A stunning new image from the James Webb Space Telescope reveals a cosmic mirage known as an Einstein ring, where the light ...

Oxford scientists say they've achieved teleportation From H. G. Wells's The Time Machine to Christopher Nolan's Interstellar, ...

Before it shut down, a telescope in Chile captured the universe's baby photos, just 380,000 years after the Big Bang. These ...

The European Space Agency's spacecraft Euclid on Wednesday released a treasure trove of new data in its quest to map and ...

Europe's Euclid space telescope, which is on a mission to shed light on the mysteries of dark matter and dark energy, ...

Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. It’s a two-for ...

A little over 40 years later in 1919 ... (Photo by SSPL/Getty Images) The result was rocket fuel for Einstein’s career, setting him on the trajectory to become the titan of science we all ...