Analyse @NASA's tweets
Got questions about the black hole at the center of our Milky Way Galaxy (and how it interacts with the space around it)?
Bring them to a Twitter Q&A today over on @ChandraXRay at 2pm ET (1800 UTC). Experts will be standing by! https://t.co/062NscVj4a
Bring them to a Twitter Q&A today over on @ChandraXRay at 2pm ET (1800 UTC). Experts will be standing by! https://t.co/062NscVj4a