Beginning in the 1960s, satellite instruments have measured Earth's reflected broadband shortwave radiation and emitted ...

Seven U.S. cities have recently captured spectacular, record-breaking cloud formations—from wave-like undulatus to glowing ...

A 2015 satellite photo captured a series of stunning "von Kármán vortices" swirling off Madeira and the Canary Islands. The ...

Skywatchers in central Wisconsin can expect a stunning week ahead, with planetary pairings, moon phases and celestial ...

At the time of this writing, June 23, Jupiter was about half a degree left of the afternoon Sun and due to pass behind it ...

Sky This Week is brought to you in part by Celestron. Friday, June 27The Moon passes 3° north of Mercury at 2 A.M. EDT. By evening the two are visible in the western sky, roughly 8° high an hour after ...

Uranium is a story of duality. It is a mineral pulled from ancient rocks that can light up a city or wipe one off the map. It’s not just a relic of the Cold War or science fiction. It’s real, it’s ...