The first U.S. mission to travel to an asteroid, retrieve samples and return them to Earth is targeted for launch on Thursday, September 8, 2016. The OSIRIS-REx mission (Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer) is scheduled to launch from Cape Canaveral Air Force Station in Florida at 7:05 p.m. EDT (2305 UTC; translate to your time zone).
OSIRIS-REx is a seven-year sample return mission to near-Earth asteroid Bennu. The orbit of this asteroid brings it near Earth occasionally, for good or ill (good because asteroids contain possible useful resources, ill because earthly astronomers have come to realize that asteroids can and do sometimes collide with Earth). NASA said the OSIRIS-REx mission will:
… help scientists investigate how planets formed and how life began, as well as improve our understanding of asteroids that could impact Earth.
— OSIRIS-REx (@OSIRISREx) September 8, 2016
OSIRIS-REx will launch aboard an Atlas V 411 rocket and reach its asteroid target in 2018. It’ll survey Bennu to characterize the asteroid and locate the most promising sample sites.
Then the mission will collect between 2 and 70 ounces (about 60 to 2,000 grams) of surface material with its robotic arm and return the sample to Earth via a detachable capsule in 2023.
The video below provides a good overview of the mission:
One of the most important instruments that’ll travel aboard this mission, with respect to the sample return, is OLA (the OSIRIS-REx Laser Altimeter). Contributed by Canadian Space Agency, it’s a laser ranging instrument that’ll be used to measure the precise distance between the spacecraft and Bennu’s surface. That’s key to enabling the mission’s robotic arm touch down on the asteroid correctly, in order to collect a sample. The video below has more …
OSIRIS-REx Principal Investigator Dante Lauretta of the University of Arizona, Tucson said:
The launch of OSIRIS-REx is the beginning a seven-year journey to return pristine samples from asteroid Bennu. The team has built an amazing spacecraft, and we are well-equipped to investigate Bennu and return with our scientific treasure.
For images, video, and more information, visit:
By the way, a private company called Deep Space Industries of Mountain View California also has plans to launch an asteroid mission, with the long-term ambitious goal of mining asteroids for resources. Deep Space Industries said on August 9, 2016 that it plans to launch a small satellite by the end of the decade to survey another near-Earth asteroid. That mission is called Prospector-1, and you can read about it here, or here.
Bottom line: On September 8, 2016, NASA’s OSIRIS-REx mission is scheduled to launch from Cape Canaveral, Florida. The mission plan is to visit near-Earth asteroid Bennu and bring a sample of the asteroid back to Earth.
Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.