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.

Satellite data reveal that warmer Atlantic waters are intruding on Arctic sea ice. The warm waters are impeding sea ice regrowth in winter.

The world's biggest Iceberg - named A-76- cracked off of Antarctica in late May.

The May 26 total eclipse of 2021's closest supermoon can be seen from western North America and elsewhere. It has a very short totality. Don't miss it!

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.

It's said that once you see a green flash, you'll never again go wrong in matters of the heart. Here's how to see one!

The complex interplay among many factors - African monsoons, ocean temperatures, wind shear, El Niño and La Niña – that go into predicting hurricane season.

NOAA is predicting a busier-than-usual hurricane season for 2021. Although hurricane season officially starts June 1, subtropical storm Ana - which formed early Saturday off the coast of Bermuda - has already become the season’s 1st named storm.

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.

Spica is the brightest star in Virgo the Maiden. It's the star near the moon on May 22 and 23, 2021. Learn this star's place in starlore, here.