Sounding rocket solves one cosmic mystery, reveals another
Monday, September 26, 2016 - 06:01
in Astronomy & Space
In the last century, humans realized that space is filled with types of light we can't see – from infrared signals released by hot stars and galaxies, to the cosmic microwave background that comes from every corner of the universe. Some of this invisible light that fills space takes the form of X-rays, the source of which has been hotly contended over the past few decades.