This video demonstrates the true scale of a galaxy. What's even more amazing is that the Milky Way is just one galaxy out of perhaps trillions of other galaxies, in a universe which is expanding faster than the speed of light. Video Credit: NASA/JPL-Caltech | Space Exploration

Space Exploration: Timeline and Technologies | HISTORY

The future of space exploration: beyond the International Space Station

Simulated International Space Station earth orbit flyover of the lower North American Atlantic Coast, from New York to Florida.

New Simulated Universe Previews Panoramas From NASA’s Roman Telescope - NASA

Crew of NASA’s earthbound simulated Mars habitat emerge after a year