Sun-Earth Days 2014

National Aeronautics and Space Administration

Goddard Space Flight Center

Sun-Earth Days 2014

Small Worlds Week

Small Worlds Week May 2nd - May 6th!

From Monday, May 2nd through Friday, May 6th, NASA will hold a celebration of the Solar System's two smallest planets, Mars and Mercury. Each day, Monday-Thursday, we will feature information about these two planets. Then on Friday, May 6th, it's your turn to ask questions, online to our small worlds experts.