Light echo helps researchers map out parts of galaxy
Friday, July 3, 2015 - 01:30
in Astronomy & Space
Thousands of years before humans invented agriculture, a bright burst of X-rays left the dense neutron star Circinus X-1, located in the faint Southern constellation Circinus. A year and a half ago, those X-rays were detected by the International Space Station, prompting a team of researchers led by University of Wisconsin, Madison's Sebastian Heinz to investigate the source.