|Down a wormhole|
Among the major challenges of exploring other worlds is landing on them. (As a side note, Mars is a particularly tough destination: it offers enough atmosphere to generate reentry heat, but not enough to slow a spacecraft down very much. For more on these and other landing considerations, see, on howstuffworks.com, "How will landing on Mars work?") You wouldn't want to drop a person in the following way, sans airbags and parachutes, but to deliver robotic probes, this is very clever: see "NASA’s Super Ball Bots Set to Explore Saturn’s Largest Moon?"
|Fireball over Chelyabinsk|
Three months after the asteroid-defense vote in the General Assembly, and approaching one year since the Chelyabinsk incident, AFAIK the UN's good intentions have yet to progress in any concrete way toward action. (Inaction at the UN ... go figure.)
|Gaia gets ready|
The €700 million mission is designed to pin down the three-dimensional positions and velocities of a billion Milky Way stars, which amounts to roughly one out of every 100 stars in the galaxy.
|Hubble "deep field" survey|
Are you holding your head? If so, it's with good reason! This next article isn't astronomical, but check out anyway, from Science News, "Thinking hard weighs heavy on the brain."