Within weeks, Peter Madsen and Kristian von Bengtson will launch the first standing-room-only spacecraft. Their rocket is a cylindrical capsule that snugly fits around a standing person, with a clear plexiglass dome so that the astronaut can see out.
With Earth's orbit cluttered with dead satellites, discarded rocket boosters and other space junk, ways to prevent the accumulation of such debris are desperately needed. How about using a tractor beam to steer future junk aside, says engineer John Sinko.
Some lizards escape predators by "dropping" their tail, but the experience appears to leave its mark. After losing their tail, lizards end up with damaging changes to their DNA.
The human family tree may be in for a dramatic rewrite. DNA collected from a fossilised finger bone from Siberia shows it belonged to a mysterious ancient hominid – perhaps a new species.
Does Schrödinger's cat really exist? You bet. The first ever quantum superposition in an object visible to the naked eye has been observed.