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Marc Millis, former head of NASA’s Breakthrough Propulsion Physics Project, has designed ion thrusters, electronics for rocket monitoring, cryogenic propellant equipment, and even a cockpit display to guide free-fall aircraft flights.

InterOrbital Systems (IOS) is -- in the words of their website -- "a rocket and spacecraft manufacturing company" that locates itself at the Mojave Airport and Spaceport in Mojave, California.

The ability to either easily recover the moon's existing water, or to convert its seemingly plentiful hydrogen and oxygen concentrations into air, water and fuel, will have a huge impact on the future direction of NASA's Space Program..

We asked several scientists, technologists, and SF writers for their reflections on the 40th anniversary of the 1969 moonwalk. Here are the results.

On September 26, 1991 eight men and women climbed inside a domelike enclosure about the size of two and a half football fields to stay for two years. Intended to function as a closed, human life sustaining ecological system, the place was a human constructed biosphere — a Biosphere 2.

In fact, it may already be supporting life, and that’s one of the main things we need to find out before we do anything

A new study published by Paul Higgs and Ralph Pudritz at McMaster University in Hamilton, Canada suggests that ten of life's twenty carbon-based amino acids may be shared wherever life exists.

I interviewed SDSC founder Howard Bloom via e-mail. Aside from his role in the organization, Bloom is the author of such popular and influential books as The Lucifer Principle and Global Brain.

Is this the “Red Mars” of 2061 from the science fiction writer’s famous Mars Trilogy?

Hexavalent chromium, oxidizing perchlorates, and cosmic radiation all contribute to a hostile environment that could make the planet Mars uninhabitable… but in the 21st century, "uninhabitable" ain't what it used to be.