During a May 29, 1919 solar eclipse, astronomers saw the sun bend starlight, proving Einstein's general relativity and catapulting him to rock star fame.

There's a puzzling gap in exoplanets, orbiting distant stars. Where are the worlds between 1.5 and 2 times Earth's radius? Shrinking planets may be the answer.

With a global camera network, scientists track meteors of long-period comets - which take thousands of years to orbit once - to predict the next meteor rain.

Enjoy a few photos of the May 21, 2021 lunar eclipse from EarthSky friends around the world. Thanks so much to all who shared your photos with us!

Launch is scheduled for 1:43 p.m. EDT on May 27, 2021. It'll bring OneWeb’s fleet to 218, 2nd-largest global internet network in Earth orbit after Starlink.

Astronomers precisely measured the ages of 100 red giant stars. Many are alien stars from another galaxy, which merged with ours 10 billion years ago.

New images - visible light, infrared and ultraviolet - from the Gemini North telescope and the Hubble Space Telescope reveal Jupiter's atmosphere and storms in stunning detail.

From iron rain on exoplanets to lightning storms on Jupiter ... Here are 4 examples of strange weather on alien worlds.

In recent years, earthly observers couldn't see Saturn's southern hemisphere. It was largely hidden behind Saturn's rings. In 2021, Saturn's rings and north pole reached their maximum tilt toward Earth, and now the southern hemisphere is coming back into view ... colored blue.

The Discovery Channel announced on May 18, 2021, that it's launching a new reality show competition called "Who Wants to Be an Astronaut?" It aims to send one ordinary person to the International Space Station for an 8-day stay.