Engineers built a tank identical to the Space Launch System tank that will be flown on Exploration Mission-1, the first flight of Space Launch System and the Orion spacecraft for testing.

For most of human history, we mortals have dreamed of taking to the skies. Then, 115 years ago on on December 17, 1903, Orville and Wilbur Wright achieved the impossbile.

Before electricity, water fountains worked by relying on gravity to channel water from a higher elevation to a lower one. In space, awesome gaseous fountains have been discovered in the centers of galaxy clusters.

NASA astronauts Anne McClain (background) and Serena Auñón-Chancellor are pictured inside the U.S. Destiny laboratory module aboard the International Space Station.

The Washington National Cathedral is seen lit up with space imagery prior to the Smithsonian National Air and Space Museum’s Spirit of Apollo event commemorating the 50th anniversary of Apollo 8, Tuesday, Dec. 11, 2018 in Washington, DC.

The Washington National Cathedral is seen lit up with space imagery prior to the Smithsonian National Air and Space Museum’s Spirit of Apollo event commemorating the 50th anniversary of Apollo 8, Tuesday, Dec. 11, 2018 in Washington, DC.

Less than three months into its mission, NASA’s Ice, Cloud and land Elevation Satellite-2, or ICESat-2, is already exceeding scientists’ expectations.

International Space Station Commander Alexander Gerst viewed SpaceX’s Dragon cargo craft chasing the orbital laboratory on Dec. 8, 2018 and took a series of photos.

“Putting this journey into words will not be easy, but I will try. I am finally where I was born to be,” said astronaut Anne McClain of her first voyage to space.

Experiments in forest observation, protein crystal growth and in-space fuel transfer demonstration are heading to the International Space Station following the launch Wednesday of SpaceX’s 16th mission.