When astronauts launch into space, a microbial entourage follows. And the sheer number of these followers would give celebrities on Twitter a run for their money. The estimate is that normal, healthy adults have ten times as many microbial cells as human cells within their bodies; countless more populate the environment around us. Although invisible to the naked eye, microorganisms – some friend, some foe – are found practically everywhere.
NASA and the U.S. Air Force Research Laboratory in Albuquerque, N.M., are requesting research and development proposals to define the type of spacecraft computing needed for future missions.
Microsoft co-founder Paul Allen has announced plans to build the world's largest plane in an effort to create a replacement for the retired US space shuttles.
NASA engineers have produced the blackest stuff ever created - a material that absorbs more than 99 percent of the ultraviolet, visible, infrared, and far-infrared light that hits it.
If astronauts make it to Mars, they may not be able to see it very well, a NASA study has shown.