Don't you hate it how simply moving a robotic arm in a microgravity environment can produce enough negative reaction forces to alter a spacecraft's orientation? Well, a group of researchers from Cornell University have now devised a new type of robot arm that they say could make that pesky problem a thing of the past. To do that, they've employed a device known as a control-moment gyroscope (or CMG) instead of a motor to control the arm's joints, which not only reduces the amount energy required to move the arm, but lets it move faster as well. As you can see above, they've already tested the arm on board NASA's famous Vomit Comet, but there's no indication just yet as to when or if the arm will actually see action in space.

To celebrate the 10th anniversary of LEGO Mindstorms, a group of professors, middle-school students, and corporate nerds will be launching several Mindstorms robots into near-space. The High Altitude LEGO Extravaganza (HALE) project will set the robots aloft in an atmospheric weather balloon shortly before sunrise this morning outside of Reno, Nevada. At about 100,000 feet (30km) the balloon will burst and the robots will parachute back to terra firma collecting data and photographs along the way. One robot named Lil' Joe will attempt a world record free-fall decent before deploying its parachute on a pre-programmed schedule. Mind you, the world record is attributable to Mindstorms NXT free-fall, a title we expect is currently held by your little brother sleeping upstairs.

Read -- HALE
Read -- HALE launch tracking

While it's not nearly exciting as their Space Cycle (but really, what is?), the National Space Biomedical Research Institute's new brain scanner here looks to fill in a niche of its own nonetheless and, if the institute has its way, it could actually find its way into space. Described as a "brain breathalyzer," the device promises to monitor astronauts for signs of brain injury, depression and mental fatigue, which could allow mission control to determine if they're capable of carrying out a mission or not. That's done with the use of an optical scanner that sends weak pulses of near-infrared light into the brain, which gets reflected back to determine the amount of oxygen in the blood. While NASA isn't fully sold on the idea just yet, it apparently is interested enough to shell out $400,000 to further the development of the scanner, which it hopes will also eventually be able to monitor other vital signs like blood pressure and heart rate.