A new Covid vaccine is available. Here’s why some people might not want it right away - The Independent



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Rock Used as a Doorstop For Decades Turns Out to Be Worth Over $1 Million - ScienceAlert
NASA Selects Four Commercial Companies to Support Near Space Network - NASA

Retired military weather satellite breaks up - SpaceNews
Giant sloths and mastodons lived with humans for millennia in the Americas, new discoveries suggest - The Boston Globe