The twin Voyager probes are entering interstellar space, but they're experiencing some surprises along the way.
When it comes to keeping tabs on terrorists, the U.S. military is discovering small is beautiful.
Guest commentator and co-founder of Project Icarus, Richard Obousy explores some "disruptive technologies" that might push us to the stars sooner than we think.
Astronaut Mark Kelly voices his concerns for the end of the shuttle program and the loss of NASA talent.
Guest contributor Adam Crowl looks at the fuel required for an interstellar trip and finds a gas giant with huge mining potential.
Though chosen for its scientific allure, the mission will moonlight as a flight test for future human expeditions.
British and European space agencies have given the go ahead for the development of a reusable spaceplane that's been under development for 30 years.
We've already landed spacecraft on the moon, but can we do it on the cheap?
NASA is looking at sending a probe to explore the methane oceans of Titan, a prime contender for finding life beyond Earth.
Guest contributor Andreas Tziolas overviews a potential mission to another star.