PASADENA, Calif. — NASA will host a news conference on Thursday, May 10, at 11 a.m. PDT (2 p.m. EDT) to present a new analysis of the giant asteroid Vesta using data from the agency’s Dawn spacecraft.

The event will be held in the James E. Webb Auditorium at NASA Headquarters. It will be broadcast live on NASA Television and streamed on the agency’s website. The journal Science has embargoed the findings prior to the news conference.

Local reporters are invited to watch the news conference via satellite, with two-way question-and-answer capability, at NASA’s Jet Propulsion Laboratory in Pasadena, Calif. Reporters who would like to come to JPL must RSVP to the Media Relations Office in advance at 818-354-5011. Valid media credentials are required, and non-U.S. citizens must also bring a passport.

In addition, reporters unable to attend the briefing in person can ask questions by telephone, and via Twitter using the hashtag #asknasa. To obtain dial-in information, journalists must send their name, affiliation and telephone number to dwayne.c.brown@nasa.gov by 9 a.m. PDT (noon EDT) on May 10.

The panelists for the briefing are:

— Carol Raymond, Dawn deputy principal investigator, JPL, Pasadena, Calif.
— Harry McSween, chair, Dawn surface composition working group, University of Tennessee, Knoxville
— Vishnu Reddy, Dawn framing camera team member, Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany; and the University of North Dakota, Grand Forks
— David O’Brien, Dawn participating scientist, Planetary Science Institute, Tucson, Ariz.
— Maria Cristina De Sanctis, Dawn co-investigator and visible and infrared mapping spectrometer team lead, Italian National Institute for Astrophysics, Rome

For NASA TV streaming video, downlink and scheduling information, visit: http://www.nasa.gov/ntv .

The event will be streamed live on Ustream with a moderated chat available at: http://www.ustream.com/nasajpl2 .

For more information about Dawn, visit: http://www.nasa.gov/dawn and http://dawn.jpl.nasa.gov .