(via Sabine Hossenfelder) I recently saw a new paper that claims our observations could be better explained if the universe was surrounded by a shell. According to the author, that could do away with ...

The good news is that you, and everyone you love, will die long before it might happen. Now for the bad news. Someday, in the far-distant future, eons beyond its 13.8-billion-year adolescence, the ...