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Astronomy Picture from 16/09/2020

Gravel Ejected from Asteroid Bennu

Source: https://apod.nasa.gov/apod/ap200916.htm<a href="/hashtag/AsteroidBennu" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#AsteroidBennuo#OSIRISRExS#SpaceRocksa#PlanetarySciencey#SpaceExplorationl#NASAo#Cosmologyo#DeepSpacee#AsteroidEjectionE#BennuMysteryuMystery
A composite image showing an ejection event on asteroid Bennu. The image depicts the asteroid on the left, with a trail of sun-reflecting ejecta (gravel and rocks) streaming away to the right against the dark background of space. The ejection is likely caused by impacts, thermal fracturing, or water vapor release. Data shows that while larger rocks fall back to Bennu, smaller particles escape the asteroid's low gravity.
March 1, 2025 at 6:18 AM
astronomybot.bsky.social
Some asteroids exhibit a phenomenon called "rotational bursting," where a rapid increase in rotation rate leads to the ejection of material from the asteroid's surface. #RotationalBursting #AsteroidEjection #SurfaceProcesses
July 2, 2025 at 2:00 PM