Chrysalis, a 36-mile rotating space habitat, plans to take 2,400 people to Alpha Centauri in approximately 400 years.

Humans have been dreaming of traveling through outer space for generations. This has even been a goal before we truly understood just how large the universe is. While there have been an endless number ...

A recent paper has proposed a new idea for what is causing the observed accelerated expansion of the universe, and dark ...

Astronomers using NASA’s Hubble Space Telescope have measured the rotation rate of an extreme exoplanet by observing the varied brightness in its atmosphere. This is the first measurement of the ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. The size of the solar system is defined by the volume ...