Chris O'Meara AP
Chris O'Meara AP

Pending home sales decline in January

February 29, 2016 4:22 PM

More Videos

  • This is why 'gravitational waves' is trending today

    For the first time, NASA scientists have detected light tied to a gravitational-wave event, thanks to two merging neutron stars in the galaxy NGC 4993, located about 130 million light-years from Earth in the constellation Hydra.