Had a great time discussing dark matter, dark energy and anti-matter at #BloomDK with @Hotblack43 + Carol Anne Oxborrow, inspired by Jeffery Hangst's talk..

Did you know the #ASIM instrument on the #ISS literally measures the annihilation of positrons in the upper atmosphere via the gamma rays emitted? Utterly fascinating.

https://link.springer.com/article/10.1007/s11214-019-0592-z

#BloomFestival

So anyway, my next book is from the festival haul. #TheEndOfEverything by @AstroKatie

reading #theEndofEverything by @astrokatie seems apropos right now