tess

NASA's TESS mission spots Earth-size exoplanet

NASA's planet-hunting TESS mission has found its first Earth-size exoplanet in a star system only 53 light-years from Earth. Another exoplanet, a warm mini-Neptune, was found in the same system.

NASA's planet-hunting satellite TESS launches

TESS, NASA's planet-hunting satellite, launched on a SpaceX Falcon 9 rocket from Cape Canaveral, Florida, at 6:51 p.m. ET Wednesday. It had a 30-second launch window. The launch was originally scheduled for Monday, but rescheduled to conduct additional Guidance Navigation and Control analysis, the agency said.