Hubble Finds an Einstein Ring via NASA https://t.co/xfEbE0Gf6i pic.twitter.com/UdT540tDQd
— martinengwicht (@martinengwicht) April 6, 2018
from Twitter https://twitter.com/martinengwicht
learning by doing
Hubble Finds an Einstein Ring via NASA https://t.co/xfEbE0Gf6i pic.twitter.com/UdT540tDQd
— martinengwicht (@martinengwicht) April 6, 2018
from Twitter https://twitter.com/martinengwicht