NASA successfully blasts OSIRIS-Rex to bring samples from Asteroid Bennu; All you need to know

OSIRIS-Rex nasa

As per the plan, the US space agency NASA has successfully launched the first ever probe to bring samples from asteroid Bennu. The launch took place at 7:05 p.m. EDT Thursday from Cape Canaveral Air Force Station in Florida. Scientists believe that the mission will help in developing a better understanding of our Solar System and how it evolved over the time.

“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.”

OSIRIS-Rex, short for Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer is a 14 year mission. The spacecraft will reach the carbon-rich asteroid after 2 years from its take off from earth. For two years it will chase the asteroid. The plan is to grab at least 60 grams of pristine surface material and return it to Earth for further analysis. OSIRIS-Rex will reach the earth in 2023 after departing the asteroid in 2021.  OSIRIS-Rex has gone through number of tests to ensure its working, before take-off.

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 at 8:04 p.m. 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.

This asteroid, which is a B-type asteroid is also recognised as potentially dangerous as it is predicted that Bennu will hit earth sometimes in 22nd century when it passes between the moon and our planet. Once the asteroid will be studied by scientists, they will develop an impact mitigation mission.

Moreover, Bennu was first observed by the scientists back in 1999 and since then it approaches our planet in every six years. It will again cross Earth in 2023. Scientists have estimated that its closest flyby will be in 2135 when it will have  0.037 percent (or 1-in-2,700) chance of striking the Earth. Bennu measures 1,600 feet in diameter and moves at 63,000 miles per hour.

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