America’s First Asteroid Sampling Mission OSIRIS-REx Arrives at Florida Launch Base

Artist’s conception of NASA’s OSIRIS-REx spacecraft at Bennu. Credits: NASA/GSFC

America’s first ever mission designed to retrieve samples from the surface of an asteroid and return them to Earth – OSIRIS-Rex – has arrived at its Florida launch base for processing to get ready for blastoff barely three and one half months from today.

NASA’s Origins, Spectral Interpretation, Resource Identification, Security – Regolith Explorer (OSIRIS-REx) spacecraft will launch from Space Launch Complex 41 at Cape Canaveral Air Force Station on a United Launch Alliance Atlas V rocket on September 8.

OSIRIS-REx was flown to NASA’s Kennedy Space Center from prime contractor Lockheed Martin’s facility near Denver, Colorado via Buckley Air Force Base. It arrived safely inside its shipping container on Friday, May 20 aboard an Air Force C-17 at the Shuttle Landing Facility.

It was soon offloaded and transported to Kennedy’s Payloads Hazardous Servicing Facility, or PHSF. OSIRIS-REx came out of the shipping container today, Saturday, May 21.

Inside the Payloads Hazardous Servicing Facility high bay at NASA’s Kennedy Space Center, engineers are removing “the birdcage” a soft, protective cover from over the Osiris-REx spacecraft. Credit: NASA

A busy first week of processing starts Monday.

NASA officials say it will go onto a rotation fixture on Monday, May 23, have a spin test May 24-25. It then will be hoisted onto a dolly May 26 for other upcoming activities. A partial solar array deployment test is scheduled on May 31.

The PHFS clean room was most recently used to process the Orbital ATK Cygnus space station resupply vehicles. It has also processed NASA interplanetary probes such as the Curiosity Mars Science Laboratory mission.

The spacecraft will reach Bennu in 2018. Once within three miles of the asteroid, the spacecraft will begin six months of comprehensive surface mapping of the carbonaceous asteroid.

After analyzing the data returned, the science team then will select a site where the spacecraft’s robotic sampling arm will grab a sample of regolith and rocks. The regolith may record the earliest history of our solar system.

Engineers will command the spacecraft to gradually move on closer to the chosen sample site, and then extend the arm to snatch the pristine samples.

OSIRIS-REx will gather rocks and soil and bring at least a 60-gram (2.1-ounce) sample back to Earth in 2023 for study by researchers here with all the most sophisticated science instruments available.

The mission will help scientists investigate how planets formed and how life began, as well as improve our understanding of asteroids that could impact Earth.

Bennu is an unchanged remnant from the collapse of the solar nebula and birth of our solar system some 4.5 billion years ago, little altered over time.

Bennu is a near-Earth asteroid and was selected for the sample return mission because it “could hold clues to the origin of the solar system and host organic molecules that may have seeded life on Earth,” says NASA.

OSIRIS-Rex will return the largest sample from space since the American and Soviet Union’s moon landing missions of the 1970s.

Inside the Payloads Hazardous Servicing Facility high bay at NASA’s Kennedy Space Center, engineers are removing “the birdcage” a soft, protective cover from over the Osiris-REx spacecraft. Credit: NASA

OSIRIS-REx is the third mission in NASA’s New Frontiers Program, following New Horizons to Pluto and Juno to Jupiter, which also launched on Atlas V rockets.

NASA’s Goddard Space Flight Center in Greenbelt, Maryland, is responsible for overall mission management.

Osiris-REx is off-loaded from an Air Force C-17 aircraft at the Shuttle Landing Facility at the Kennedy Space Center on May 20, 2016. Osiris-REx made its way from Lockheed Martin’s facility near Denver, Colorado to NASA’s Kennedy Space Center to be processed before launching to the asteroid Bennu. Credit: NASA

OSIRIS-REx complements NASA’s Asteroid Initiative – including the Asteroid Redirect Mission (ARM) which is a robotic spacecraft mission aimed at capturing a surface boulder from a different near-Earth asteroid and moving it into a stable lunar orbit for eventual up close sample collection by astronauts launched in NASA’s new Orion spacecraft. Orion will launch atop NASA’s new SLS heavy lift booster concurrently under development.

OSIRIS-REx will launch on a United Launch Alliance (ULA) Atlas V rocket similar to this launch carrying the GPS IIF-12 mission which lifted off at 8:38 a.m. EST on Feb. 5, 2016 from Space Launch Complex 41 on Cape Canaveral Air Force Station, Fla. Credit: Ken Kremer/

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Ken Kremer

Dr. Ken Kremer is a speaker, research scientist, freelance science journalist (KSC area,FL) and photographer whose articles, space exploration images and Mars mosaics have appeared in magazines, books, websites and calendars including Astronomy Picture of the Day, NBC, FOX, BBC,, Spaceflight Now, Science and the covers of Aviation Week & Space Technology, Spaceflight and the Explorers Club magazines. Ken has presented at numerous educational institutions, civic & religious organizations, museums and astronomy clubs. Ken has reported first hand from the Kennedy Space Center, Cape Canaveral, NASA Wallops, NASA Michoud/Stennis/Langley and on over 80 launches including 8 shuttle launches. He lectures on both Human and Robotic spaceflight - Follow Ken on Facebook and Twitter

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