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10 weird things scientists calculated in 2021From the number of bubbles in a typical glass of beer to the weight of all the coronavirus particles circulating in the world, here are 10 weird things scientists calculated in 2021.
astronomy -
Plasma wind tunnel annihilates satellite model in atmospheric reentry testSatellite parts that melt away during reentry reduce the risk of space debris impacts on Earth, a new video demonstrates.
space-exploration -
How do tiny pieces of space junk cause incredible damage?Space junk moves at 10 times the speed of a bullet from an average gun.
space -
'Superbolts' are real, and they flash up to 1,000 times brighter than regular lightningScientists recently calculated the power of so-called superbolts — brighter-than-average lightning strikes.
weather -
Here's everything we know about the secretive spy satellite launching tonightThe U.S. government is putting something big and secret in orbit tonight (Sept 30). Here's the little we can glean from public information.
space-exploration -
Russia just tested anti-satellite space weapon, US claimsThe U.S. government says Russia tested an anti-satellite space weapon July 15. Russia says it was an inspector satellite. Nothing was destroyed.
space-exploration -
Hackers could shut down satellites — or turn them into weaponsplanet-earth -
Satellite 'license plates' and re-igniting rocket fuel could head off space junk crashesIn low Earth orbit's growing "space junkyard," new technologies could reduce the risk of collisions.
space -
What Does It Take to Be a Moon?When is a moon not a moon — and does it matter?
the-moon
