NASA is publicly addressing the subject of UFOs a year after launching a study into unexplained sightings.

A U.S. astronaut has made it through nearly a year in space but faces what could be his trickiest assignment yet: riding a Russian capsule back to Earth.

Former NASA astronauts Scott Kelly and Garrett Reisman responded to a March 2 video posted by the leader of Russia's space agency, Roscosmos.

Melroy, Michael Lopez-Alegria and Scott Kelly made up the class of 2020 inductees.

Three veteran astronauts will be inducted into the U.S. Astronaut Hall of Fame Saturday morning at Kennedy Space Center Visitor Complex.

Knowable is an audio-based eLearning app that lets you access a wide range of information in 10-minute clips.

There may not be family feasts or boughs of holly, but astronauts still manage to find creative ways to celebrate holidays while they’re orbiting the Earth. Come Nov. 15, four astronauts will launch on SpaceX’s Dragon spacecraft atop a Falcon 9 rocket and head for the International Space Station, where they’ll stay for about six months. Space Station (@Space_Station) November 25, 2019Last year, NASA astronauts Christina Koch, Jessica Meir and Andrew Morgan were happy to let Russian astronauts Aleksandr Skvortsov and Oleg Skripochka and Italian astronaut Luca Parmitano in on their American traditions. New Year’sAccording to Kelly, New Year’s is actually a bigger deal than Christmas on the International Space Station because all the astronauts on board celebrate it at the same time. You can hear his International Space Station rendition of the Irish ballad here.