A billionaire spacewalker returned to Earth with his crew on Sunday, ending a five-day trip that lifted them higher than anyone has traveled since NASA’s moonwalkers.

The European Space Agency (ESA) released the first batch of images and data for its Euclid space telescope. The images focus ...

Euclid is on a quest to unravel one of the universe’s greatest mysteries: why it's expanding faster and faster. With help ...

This week, researchers reported on nine rivers and lakes in the Americas that defy hydrologic expectations. Geologists report ...

The rare cosmic phenomenon, called an Einstein ring, occurs when massive objects can bend light due to their gravitational ...

Webb Telescope captures an Einstein ring in the Hydrus constellation Light bends around a massive galaxy, forming a glowing ...

The rare cosmic phenomenon, called an Einstein ring, occurs when massive objects can bend light due to their gravitational ...

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

Further investigation revealed that the telescope had captured a strong gravitational lens called an Einstein ring. Photograph by ESA, Euclid, Euclid Consortium, NASA, image processing by J.- ...

One of the first verified predictions of general relativity is the gravitational deflection of starlight. The effect was ...

In the center of the Einstein ring is a lensing galaxy called an elliptical galaxy, which is smooth and shaped like an oval.

The NASA James Webb Space Telescope captured a stunning image of an Einstein ring, an optical phenomenon created by gravitational lensing. This rare sight, caused by light from a distant galaxy ...