This is really getting exciting! ESA's Rosetta spacecraft (and the piggybacked Philae lander) are in the home stretch to arrive at Comet…
Pretty darn big, I'd say. The illustration above shows the relative scale of the comet that ESA's Rosetta and Philae…
Well, technically not space*, but suborbital, and that'd still be way cool! And what's even cooler is that you can enter…
It's no surprise that there is a lot of water in comets. The "dirty snowballs" (or dusty ice-balls, more accurately)…
Except these are mountains made of water, not rock! Taken from an altitude of 65,000 feet, the image above shows enormous…
Our Sun is constantly sending a hot stream of charged atomic particles out into space in all directions. Pouring out from holes…
Caught on camera by NASA's Solar Dynamics Observatory, a prominence blazes hundreds of thousands of miles out from the Sun's surface (i.e.,…
While many kids in the U.S. are starting their school summer vacations, New Horizons is about to get back to work! Speeding…
Remember yesterday when we mentioned two X-class flares erupting from the Sun within the space of about an hour? We…
NASA's Curiosity rover may be busy exploring the rugged and rocky interior of Gale Crater, but it does get a…