Confirmed by an eclipse, Einstein's theory of gravity revealed a spectacular tool: gravitational lensing. This video explains ...

The third day of the 18th annual Space Telescope Advent Calendar features a deep-space image of more than 100 galaxies close ...

The most distant known star in the universe is no longer a faint, anonymous point of light. With the James Webb Space ...

A recently-discovered powerful cosmic lens, which magnifies profoundly distant objects in space. Credit: William Sheu (UCLA) / Hubble Space Telescope There are funhouse mirrors in space. Objects in ...

When you look at the night sky, do you ever wonder what's going on out there? On a clear night with a dark sky, if moonlight doesn't wash it out, sometimes you can see the arc of the Milky Way. The ...

The powerful infrared eyes of the James Webb Space Telescope captured a sparkling jeweled ring in the depths of space, all made by a mesmerizing cosmic phenomenon known as gravitational lensing. This ...

A technique called interferometry can greatly magnify tiny objects on the sky, and is powerful enough to reveal the surfaces ...

From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for stargazing and astronomy. When you purchase through links on our site, we may earn ...

"Every modern astronomy textbook includes contributions from Hubble." For 35 years, the Hubble Space Telescope has served as humanity's tireless eye in the sky, capturing breathtaking views of the ...