Last week, four commercial astronauts boarded a SpaceX capsule for a pioneering spaceflight that was years in the making. And though the astronauts landed safely Sunday off the coast of Florida, the ...

Banner image: CU Boulder aerospace engineers Torin Clark, left, and Allie Hayman, right, sit with the crew of Polaris Dawn during an event on campus in 2022. (Credit: Casey Cass/CU Boulder) Editor's ...

The Polaris Dawn mission, an ambitious five-day journey to the upper reaches of Earth's orbit, will take the crew higher than an human has traveled in more than 50 years. After descending to a ...

The history of space exploration can be said to be written in images as much as in words. The iconic picture of Buzz Aldrin saluting the American flag on the surface of the moon is one of the most ...