‘Style is the man himself.’ –Georges-Louis Leclerc, Comte de Buffon
Some astronauts report losing their fingernails on spacewalks because of bulky gloves that cut off circulation and chafe against their hands. To avoid this inconvenience, a couple astronauts have taken to ripping off their own fingernails before reaching orbit.
Of the nearly 500 planets known beyond our solar system, nearly all appear to be gas-shrouded giants like Jupiter or Neptune, and most are either too hot or too cold to harbor life-giving liquid water. In contrast, with only three to four times the mass of Earth, Gliese 581g is probably mostly made of rock, and is at the proper distance from its star to have lakes, seas, even oceans of water upon its surface. If confirmed by follow-up observations, Gliese 581g will be the most promising potentially habitable planet discovered so far.
photo { Li Wei }
