Mercury, First Planet From the Sun: Latest Discoveries
Mercury is our solar system's smallest planet.
This year was packed with discoveries, from fast-spinning black holes to loads of extrasolar planets.
NASA's MESSENGER spacecraft has turned up new oddities on planet Mercury.
The next three weeks will present an excellent opportunity to view Mercury.
A Mercury probe has begun beaming back images from its second flyby.
A NASA spacecraft zoomed past Mercury for the second time early Monday.
A planetary map-mapmaker targets Mercury and the moons of Saturn.
Three planets are now putting on a show as prominent evening luminaries.
First MESSENGER flyby confirms volcanism, gives data on Mercury's magnetic field.
Almost weekly, there's an announcement of another extrasolar planet.
The Discovery Channel showcases NASA missions in High Definition.
Mercury is the most difficult of the five 'naked-eye' planets to see.
New spacecraft data could get to the bottom of Mercury's mysterious giant cliffs.