This is how your brain controls sleep: https://www.universal-sci.com/headlines/2015/10/14/how-the-brain-controls-sleep?aprthreads
April Fools’ Day… but this one’s real. 👀
There’s a planet where it rains glass sideways.
On HD 189733b, extreme temperatures vaporize silicate materials, which can condense into glass-like particles and get swept sideways by winds over 5,000 mph.
sciencethreads