The May 2013 issue of the Discovery and New Frontiers News is on the Discovery Program website.

In this issue:

• What caused the uneven gravity on the Moon, a mystery since it was first detected in 1968?  GRAIL just found the answer!
• OSIRIS-REx passed a key milestone and all systems are go for final design and development of the spacecraft. How will this mission will grab samples from an asteroid for return to Earth?
• What are some of the surprising new findings being revealed by scientists on the Dawn and MESSENGER missions about their favorite destinations – giant asteroid Vesta and planet #1, Mercury?
• Juno is flying by Earth this fall. Why is this the preferred path on its way to Jupiter?

Read about all this and more! Thanks for your interest.

Regards,
Shari

Written & edited by:

Shari Asplund
NASA Discovery & New Frontiers Programs
Public Engagement Manager
Jet Propulsion Laboratory
818-354-7280
http://discovery.nasa.gov