A. Black Holes
B. Neutron Stars
C. Earth Magnetic Field
D. All of the above
Submitted by: Ashfaque Ali Khoso
The Spektr-R telescope was launched into orbit in 2011 to study black holes, neutron stars and Earth’s magnetic field, among other subjects. Complete with ground-based observatories and a 10-metre-long antenna, RadioAstron is one of the largest telescopes ever made.