Isaac Arthur on MSNOpinion
Alien overlords have conquered Earth - now what?
The invasion is over. The aliens won. Now humanity must live under their rule. Explore the aftermath of conquest.
Space on MSN
Scientists measure air pollution from reentering SpaceX rocket in real-time: 'It's never been done before'
For the first time ever, scientists have observed in near real time a cloud of air pollution created as a SpaceX rocket burned up in Earth's atmosphere.
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