NASA's first asteroid sampling mission launched into space at 7:05
p.m. EDT Thursday from Cape Canaveral Air Force Station in Florida, beginning a
journey that could revolutionize our understanding of the early solar system.
“Today, we celebrate a huge milestone for this remarkable mission,
and for this mission team,” said NASA Administrator Charles Bolden. “We’re very
excited about what this mission can tell us about the origin of our solar
system, and we celebrate the bigger picture of science that is helping us make
discoveries and accomplish milestones that might have been science fiction
yesterday, but are science facts today.”
The Origins, Spectral Interpretation, Resource Identification,
Security-Regolith Explorer (OSIRIS-REx) spacecraft is designed to rendezvous
with, study, and return a sample of the asteroid Bennu to Earth. Asteroids like
Bennu are remnants from the formation of our solar system more than 4.5 billion
years ago. Scientists suspect that asteroids may have been a source of the
water and organic molecules for the early Earth and other planetary bodies. An
uncontaminated asteroid sample from a known source would enable precise
analyses, providing results far beyond what can be achieved by spacecraft-based
instruments or by studying meteorites.
OSIRIS-REx separated from its United Launch Alliance Atlas V
rocket 8:04 p.m. minutes after launch. The solar arrays deployed and are now
powering the spacecraft.
“With today’s successful launch, the OSIRIS-REx spacecraft embarks
on a journey of exploration to Bennu,” said Dante Lauretta, OSIRIS-REx
principal investigator at the University of Arizona, Tucson. “I couldn’t be
more proud of the team that made this mission a reality, and I can’t wait to
see what we will discover at Bennu.”
In 2018, OSIRIS-REx will approach Bennu – which is the size of a
small mountain – and begin an intricate dance with the asteroid, mapping and
studying Bennu in preparation for sample collection. In July 2020, the
spacecraft will perform a daring maneuver in which its 11-foot arm will reach
out and perform a five-second “high-five” to stir up surface material,
collecting at least 2 ounces (60 grams) of small rocks and dust in a sample
return container. OSIRIS-REx will return the sample to Earth in September 2023,
when it will then be transported to NASA’s Johnson Space Center in Houston for
examination.
The OSIRIS-REx mission will be the first U.S. mission to carry
samples from an asteroid back to Earth and the largest sample returned from
space since the Apollo era.
"It’s satisfying to see the culmination of years of effort
from this outstanding team,” said Mike Donnelly, OSIRIS-REx project manager at
NASA's Goddard Space Flight Center in Greenbelt, Maryland. “We were able to
deliver OSIRIS-REx on time and under budget to the launch site, and will soon
do something that no other NASA spacecraft has done – bring back a sample from
an asteroid.”
Goddard provides overall mission management, systems engineering
and the safety and mission assurance for OSIRIS-REx. The University of Arizona
leads the science team and observation planning and processing. Lockheed Martin
Space Systems in Denver built the spacecraft. OSIRIS-REx is the third mission
in NASA’s New Frontiers Program. NASA’s Marshall Space Flight Center in
Huntsville, Alabama, manages the agency’s New Frontiers Program for its Science
Mission Directorate in Washington. Launch and countdown management is the
responsibility of NASA’s Kennedy Space Center in Florida.
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