Astronomy Unlocked: Nov. 20, 2025
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Author:
Brooks Mendenhall
Science
Comet 3I/ATLAS reaches perihelion, begins solar transit
What's Launching This Week
Shenzhou-21 crew headed to Tiangong Station this week
Human Spaceflight
How spaceflight impacts the immune system
What's Launching This Week
Spain’s new communications satellite to launch this week
Exotic Objects
Supermassive black hole seen feeding via a pair of spiral arms
Science
Comet 3I/ATLAS shows signs of water
Science
,
Solar System
Moonquakes are the primary trigger for lunar landslides, study finds
What's Launching This Week
How to watch today’s Starship Test Flight 11 launch
Science
Advocates rally to “Save NASA Science” amidst government shutdown
Solar System
A thousand martian dust devils help chart the Red Planet’s winds
What's Launching This Week
Blue Origin’s NS-36 to carry six passengers to space
Solar System
The wind-driven future of Mars exploration
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