SpaceX launched the eighth and final set of satellites last week, completing the 75 satellite fleet of Iridium's next-generation communication constellation. The rocket’s first stage had been ...

The space shuttle Atlantis landed at 4:57 a.m. CDT today at Kennedy Space Center in Florida after 200 orbits around Earth and a journey of 5,284,862 miles. Now that it's back home, Atlantis won't be ...

The crackle of firecrackers and thump of cannons echoed through the neighborhood last night, the fourth of July. But a whole different kind of fireworks was happening 483 miles overhead — silent but ...

MINNEAPOLIS — Skywatchers in parts of Minnesota had a chance Friday to see a slightly unusual sight: a pair of streaks from communications satellites brightly reflecting the sun. The streaks should ...

Unless you’re an avid stargazer or work for NASA, you’d be forgiven for thinking that iridium flares were a fashion atrocity committed sometime in the 1960s. An iridium flare is in fact a brief ...

Sunday: An Iridium flare is visible in the eastern sky tonight. The flare will be about two times brighter than Jupiter and occurs at 9:36 p.m. in the constellation Bootes. Bootes resembles a kite or ...

Sunday: This is the last week to spot the five most visible planets in the sky at the same time. Mercury, Venus and Jupiter are easy to spot low in the west. Mercury and Jupiter will be visible only a ...

Here's a challenge for you sharp-eyed observers. I want you to find the third-brightest thing you're likely to ever see in the sky. But that's not as easy as it sounds. About 485 miles above the Earth ...