Rachael Claireさんのイラストまとめ

Fun Fact:

"The  lightning on Venus  is unique from that found on Earth, Jupiter & Saturn in that it is the only  lightning  known that is not associated with water clouds. Instead, on  Venus, the  lightning  is associated with clouds of sulfuric acid!" #VenusFacts #SolarSystem

Black Holes, thanks to @universetoday

• You can’t directly see a black hole
• There are at least three types of black holes: 1) Primordial black holes 2) Stellar black holes 3) Supermassive black holes
• The first black hole wasn’t discovered until X-ray astronomy was used