Top news for December 21, 2008

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Make your own Mars helicopter Ingenuity out of paper with this NASA guide!

On This Day In Space: May 25, 2008: NASA's Phoenix spacecraft lands on Mars

Yuri's Night 2021: Celebrate 60 years of human spaceflight tonight with Bill Nye, astronauts, OK Go and more

Volcanic Eruption On St. Vincent In The Caribbean, And The Amazing Sole Survivor Of Mt. Pelee

Blood Clots Linked to AZ Vaccine Stem From Rare Antibody Reaction

Chinese Solar Telescope Reveals Acceleration of Magnetic Reconnection From a Nearby Filament Eruption

450-Million-Year-Old Sea Creature’s Bizarre Breathing Organs Uncovered

Resilience against replay attacks in computer systems

Two Years Ago, on this day The world saw the first ever image of a Black Hole.

Powerful Algorithms Used by Netflix, Amazon and Facebook Could “Crack the Language of Cancer and Alzheimer’s”