Science & Nature

NASA Arrives at Mercury

In yet another first in man's exploration of space, NASA's "Messenger" spacecraft arrived at the planet Mercury. It's the first craft ever to go into orbit around the closest planet to the sun. We talk to an Astrophysicist from the Adler Planetarium about what humans are learning from our planetary neighbors.

• Messenger's Mission to Mercury
• Messenger News Center
• Adler Planetarium Citizen Science Initiative