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U.S. begins groundbreaking asteroid descent

by Rachel Lynn Aldrich
Posted 10/20/20, 06:11 pm

Some 200 million miles from Earth, between Mars and Jupiter, a NASA spacecraft began slowly approaching the surface of Bennu on Tuesday. The Osiris-Rex takes 4½ hours to reach the surface to complete its mission, the United States’ first attempt to gather samples from an asteroid as it careens through space.

What’s the goal? The spacecraft will pull up next to Bennu, spew pressurized nitrogen gas at the surface to stir up materials, and try to capture 2 ounces of loose pebbles or dust. The difficult part is getting close enough. At only 1,670 feet across, Bennu doesn’t generate enough gravity for Osiris-Rex to land. The van-sized spacecraft will hover near the asteroid and reach out an 11-foot robotic arm for what will likely be only 5-10 seconds of contact after two years of orbiting the rock. On its approach, the craft will have to dodge boulders the size of buildings. If the mission succeeds, the spacecraft and its samples will parachute home to the Utah desert in 2023.

Dig deeper: Read Julie Borg’s report about some of the exciting discoveries astronomers made last year.

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Rachel Lynn Aldrich

Rachel is an assistant editor for WORLD Digital. She is a Patrick Henry College and World Journalism Institute graduate. Rachel resides with her husband in Wheaton, Ill.

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  • BF
    Posted: Wed, 10/21/2020 02:11 am


  • Cyborg3's picture
    Posted: Fri, 10/23/2020 10:06 am

    Interesting! A grand success! Maybe in heaven this will be the method we use to build space vehicles to explore our universe for the glory of God. Here is a mission description video telling the details. I doubt the billions of years but still the videos are interesting. Will we discover the building blocks of our universe? This assumes a naturalistic explanation which we know is incorrect for life is specially created. The idea of abiogenesis is absurd at best when you think of the complexity of life