It feels like only yesterday that you blasted into the Mars atmosphere, deployed a supersonic parachute, fired eight rocket engines, unfurled a giant sky crane and lowered yourself to the Martian soil.
Commander Chris Hadfield’s tweets are literally out of this world. Nearly every day the astronaut tweets out photos and observations from space to his 500,000 plus Twitter followers and gives them a glimpse at his life in orbit.
At the American Astronomical Society meeting, scientists presented the first reliable tally of the number of Earth-sized exoplanets in our Milky Way. And the number is a staggering 17 billion. That’s one in six stars hosting an Earth-sized planet in a tight orbit, NASA reports. More
"If you put all the viruses in the ocean on a scale, they would equal the weight of 75 million blue whales. And if you lined up all those viruses end to end, “they would stretch out past the nearest 60 galaxies."