The GRAIL mission will study the moon's gravitational field via minute differences in the distance between the two craft as they orbit above the moon's surface.
The Curiosity Mars rover has traveled 1.8 million miles (about 3 million km) per day. It's measuring space radiation possibly harmful to Mars-bound astronauts.
The James Webb Space Telescope is the next-generation space telescope, following Hubble. It's scheduled to launch in 2018. Here are 5 cool things to know.
Laura Dattaro came to EarthSky from the Baltimore City Paper, where she remains an associate editor, and from @ldattaro on Twitter. She is a 2009 graduate of University of Delaware with degrees in English and music and sees science as a way to unite humanity behind a greater good, besides being simply the coolest thing to read and write about. She currently lives in Baltimore.