Top news for 2021-12-04

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Rocket launch today: SpaceX launching US spy satellite in morning liftoff

On This Day In Space: Dec. 22, 1966: 1st flight of the HL-10 lifting body

Arianespace Soyuz rocket launches Galileo satellites into orbit in picturesque nighttime liftoff

Volcanism Triggered A Period Of Global Cooling And Falling Oxygen Levels, Causing The First Mass Extinction In Earth History

Omicron Variant Spreading Twice as Quickly as Delta in South Africa

Skywatching Highlights for December: Don’t Miss Comet Leonard and Geminid Meteors

Scientists Found The Real Way Sea Otters Stay Warm in Cold Waters

Space Station Fires Thrusters To Avoid Dangerous Debris From Pegasus Rocket

This New Ultra-Compact Camera Is The Size of a Grain of Salt And Takes Stunning Photos

50 years ago, Russia landed on Mars for 15 seconds — and taught America a lesson