Just seconds before liftoff late Wednesday, ULA was forced to scrub the launch of its powerful heavy-lift rocket, with a hardware issue reportedly the cause.
NASA woke the space station crew on Monday night to ask them to conduct an urgent search for the leak after it mistakenly feared it was suddenly getting worse.
On Thursday, Northrop Grumman will launch a Cygnus cargo spacecraft to the International Space Station carrying crew supplies and new science experiments.
A NASA official has said it's still searching for the source of an air leak on the space station following a second attempt to pinpoint it over the weekend.
The European Space Agency's Mars Express found liquid water buried under ice on the red planet, with the largest lake measuring 20 kilometers by 30 kilometers.
Europe's CHEOPS satellite has uncovered details about its first exoplanet: An extreme world so hot that even metals like iron would evaporate and turn into gas.
NASA is preparing for a daring heist: Next month the robotic spacecraft OSIRIS-REx will touch down on the surface of asteroid Bennu and collect a sample.
A study has found radiation levels on the moon are 200 times the levels on Earth. However, experts say long-term exploration of the moon is still safe.
How do you make artificial gravity work for future orbiting space habitats? Researchers from Texas A&M University shed some light on the answer in new research.
Astronauts aboard the ISS had to move to a safe section on Tuesday as controllers maneuvered the orbiting outpost out of the way of approaching space junk.
A new map of Enceladus using both visible light and infrared shows regions of geological activity which have deposited fresh ice onto the moon's surface.
When the James Webb telescope launches, it may be able to find indications of life beyond our planet -- even on planets orbiting dead stars called white dwarfs.
A new image from the Hubble Space Telescope captures both the epic storms raging on Jupiter and its icy moon Europa, which could potentially host life.
With a SpaceX mission, there's plenty to enjoy besides just the rocket launch, with numerous livestream cameras capturing the action wherever it happens.
"Countdown to Mars: A Story of Perseverance" is a new short film from NASA that shows behind-the-scenes footage shot in the days before the Mars 2020 launch.