NASA Remembers Fallen Astronauts on 30th Anniversary of Challenger Disaster, Which Left Seven Dead

On the 30th anniversary of the Challenger disaster, which claimed the lives of all seven astronauts aboard, NASA will pay will tribute to the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other NASA colleagues, during the agency's Day of Remembrance on Thursday, Jan. 28. NASA's Day of Remembrance honors members of the NASA family who lost their lives while furthering the cause of exploration and discovery.

2015 Was Earth's Warmest Year Since Modern Record Keeping Began in 1880, NASA, NOAA Analyses Reveal

Earth's 2015 surface temperatures were the warmest since modern record keeping began in 1880, according to independent analyses by NASA and the National Oceanic and Atmospheric Administration (NOAA).

NASA Confirms Evidence That Liquid Water Flows on Today’s Mars

NASA has announced a major find on the Red Planet.

NASA TV to Broadcast Unpiloted Cargo Ship Departure from Space Station

An unpiloted Japanese cargo ship is scheduled to depart the station Monday, Sept. 28. NASA Television will provide live coverage of the departure beginning at 11 a.m. EDT.