Einstein's gravity theory passes toughest test yet
Thursday, April 25, 2013 - 14:00
in Astronomy & Space
A strange stellar pair nearly 7,000 light-years from Earth has provided physicists with a unique cosmic laboratory for studying the nature of gravity. The extremely strong gravity of a massive neutron star in orbit with a companion white dwarf star puts competing theories of gravity to a test more stringent than any available before.