“It is not allowable for the sun to reach the moon, nor does the night overtake the day, but each, in an orbit, is swimming.”
Kepler Emergency-Mode UpdateIn my last article, I explained how a spacecraft like the Kepler Space Telescope can go into a “safe mode” to…
Discovered So Far The Darkest Planet In SpaceGas giant TrES-2b, as big as Jupiter, reflects less than one percent of the light that reaches it, so it is darker than coal and any planet or moon in our system.