How and What
What kind of invisible light does Spektr-RG see?
X-rays
How many new supermassive black holes did Spektr-RG find?
Over 3 million.
Which two countries worked together to build Spektr-RG?
Russia and Germany.
What is it's main mission?
It is to make the biggest, most detailed map of the X-ray sky EVER.
Besides black holes, what super-dense object did it find?
Neutron stars.
Spektr-RG's mission was to make the biggest and most detailed map of the sky in what type of light?
X-ray light.
True or False: Spektr-RG uses normal, flat mirrors like your bathroom mirror.
False! It uses special barrel-shaped mirrors.
What is the name of the giant, hot gas structure connecting all galaxies that Spektr-RG is studying?
The Cosmic Web.
What are the names of the two telescope "eyes" on Spektr-RG, and which country built each one?
"eROSITA" (German eye), "ART-XC" (Russian eye)