Blue Origin’s BE-4 rocket engine completes first hot-fire test
It’s the engine Jeff Bezos’ company plans on using in its New Glenn launch vehicle.
NASA study will help identify potentially habitable planets
Stars must emit just enough near-infrared light to prevent the loss of oceans.
Newly-discovered lunar cave would be great for a moon base
The robots that will sweep Earth's skies
Until then, all those dead satellites will have to fend for themselves.
Bigelow Aerospace plans an inflatable habitat for lunar orbit
It plans to launch by 2022 to become a moon-based anchorage for business and NASA.
Explore (most of) the solar system in Google Maps
None of the gas giants, some of the moons (and Pluto).
Safety is Elon Musk's chief concern for new SpaceX rocket
He got into the weeds with the technical details in a Reddit AMA.
Astronomers just measured a whole lot more than gravitational waves
Researchers around the world are collecting troves of new data from this latest event.
Tom DeLonge needs your help funding his next UFO obsession
To The Stars wants to work 'without the restrictions' of the government. Uh.