Mystery Behind Bennu Ejecting Rocks From Surface Of Asteroid

asteroid bennu eruption, asteroid bennu ejection

A newly discovered strange phenomenon in Space is currently baffling scientists.

Some large rocks are being ejected from the surface of Bennu, a carbon-rich asteroid flying between Mars and Jupiter.

NASA’s OSIRIS-REx spacecraft took off the Cape Canaveral Air Force Station three years ago and reached Bennu, a dark, round, carbon-rich asteroid measuring less than 500 meters in diameter in Dec. 2018.

The main goal of this space mission is to bring back a sample of the asteroid whose composition has remained more or less the same since it formed.

Erupting rocks on Bennu

OSIRIS-REx has observed Bennu ejecting large pieces of rocks from its surface. The cameras on the spacecraft three eruptions during which 3 feet large chunks of asteroid were ejected into space.

Even more intriguing is that most of these ejected rocks are now behaving like small satellites, orbiting all around Bennu. All new small moons have different orbits, showing that material eruptions occur all around the surface of the parent asteroid.

Scientists are investigating that new mystery for the last several months. They have now published their first results in Science.

Possible theories to explain the strange phenomenon include:

  • Particles breaking up in a process called “surface stress fracturing,” which is caused by a wide temperature variance (-240 F to 100 F)
  • Impact of micrometeoroids on Bennu’s surface ejecting material.

This is the first time that we can observe an active asteroid so closely. But OSIRIS-REx will leave Bennu long before debunking the mystery behind these ejections… [Science]


Original Article:

Read More:Muste Be A Very Real Threat: NASA Administrator Jim Bridenstine Warns We Need To Prepare NOW For Asteroid Impact Threat

Read More:US Steps Up Asteroid Defense; They Know What Is Coming

Read More:Asteroid Bennu, Named After Egyptian Sun-god, To Be Explored By NASA’s OSIRIS-REx (Also Named After Egyptian god)

Read More:What Will Happen With ‘Armageddon Asteroid’ Bennu?

Read More:NASA’s Aptly Named OSIRIS-REx Discovers Death Asteroid Bennu Had Water- What Does This Mean?

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.