Feb 20, 2013 — Satellites help track storms, power the GPS signals in our cars and phones and beam TV signals around the world. But they also send back striking, totally disarming images of planet Earth.
Dec 13, 2012 — Commercial space travel is becoming a reality. Now people who have longed to go into space can buy a ticket, if they've got the cash. But are they healthy enough to make the voyage?
Oct 16, 2012 — Astronomers have finally discovered a planet orbiting Alpha Centauri, the nearest star to the Sun. At a mere 4.4 light years away, scientists have long hoped that a planet would be found around this closest of stellar neighbors.
Sep 26, 2012 — The notion that the Big Bang is like an exploding bomb is completely wrong. But what, then, lies beyond the edge of space? Can we ever know whether the Universe is infinite?
Aug 15, 2012 — NASA's Curiosity rover will soon begin to search for signs of life, past or present, on the red planet. But can we make sense of life in strange places? And if we don't find it, what will it mean to us?
Jul 31, 2012 — Should we be sending emissaries (and colonists) to the stars. Yes! Just remember that those who leave won't really be coming back.
Jul 25, 2012 — Contributor Adam Frank has an op-ed in The New York Times that argues we're not going to be traveling the cosmos any time soon, if ever.
Jul 10, 2012 — Have we heard from ET? Even if we did, that doesn't tell us anything about UFOs. Still, it can't hurt to try and talk to them, right? Commentator Adam Frank share his message for beings from beyond our Earth.
Jun 6, 2012 — Can we explain the origin of all things from nothing? First we need to understand what nothing means and how the human mind creates.
May 30, 2012 — Should we send humans or robots into outer space? With private interests taking over the space race, it's hard to see us out of the game.