Euclid, a European space telescope, just captured 26 million galaxies to reveal the secrets of the dark universe.

In all its forms—visible and invisible—it saturates the universe. Light is more than ... the answer from the world's largest laser, the National Ignition Facility. NIF is under construction ...

These small vortices of darkness may have swirled to life soon after the universe formed with the big bang, some 13.7 billion years ago, and then quickly evaporated. Astronomers also suspect that ...

The visible universe—including Earth, the sun, other stars, and galaxies—is made of protons, neutrons, and electrons bundled together into atoms. Perhaps one of the most surprising discoveries ...

Orbital telescopes function as eyes in the sky that allow astronomers to peer farther into the universe and see the cosmos more clearly. Scientists began dreaming of such a telescope in the 1940s ...

Because the universe's oldest stars are only 10 billion to 20 billion years old there are no known black dwarfs—yet. Estimating how long white dwarfs have been cooling can help astronomers learn ...

Funded by the National Geographic Society in collaboration with ... and even astrobiology—the study of life in the universe. They worked with urgency. At the current rate of sea-level rise ...