The bold question-askers at What If explore the consequences of filling Earth's orbit with space junk. New details in Charlie ...

Both the United States and China are working to put their astronauts on the moon in the next few years, with NASA's acting administrator claiming that America will win the "race." But what happens if ...

If everyone turned on their lights all at once around the world, they would create a huge, sudden demand for electricity.

Space is cold, and research has shown time and time again that space ice is prevalent throughout the universe. However, despite sharing a similar name to the ice we find in glaciers or even in our ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Author: Michelle L.D. Hanlon, University of Mississippi The first space race was about ...

Astronauts who have previously visited the ISS have not been shy about the odor on the space station, with many describing it ...

Two Chinese satellites have rendezvoused with one another more than 20,000 miles above the Earth in what analysts believe is the first high-altitude attempt at orbital refueling. China’s Shijian-21 ...

NASA astronaut Sunita Williams opens up to PEOPLE about spending 9 months in space, what she missed the most and her tentative plans to retire.

Space Command is responsible for military operations beyond Earth's atmosphere. It's separate from the US Space Force, which is a service branch of the military – like the Army or Navy – responsible ...