By "big reveal" I mean surprise. There's something unexpected about Bennu.
There's going to be some kind of big reveal about Bennu in a couple of weeks at the LPSC conference. I don't know what it is, but I suspect it has to do with a very low density or maybe a very large void inside the asteroid.
Nasa has revealed "unexpected" findings from the first data received back from a nearby asteroid, offering clues to the origins of the solar system and even life on Earth.
A NASA spacecraft that will return a sample of a near-Earth asteroid named Bennu to Earth in 2023 made the first-ever close-up observations of particle plumes erupting from an asteroid’s surface.
Plumes!QuoteA NASA spacecraft that will return a sample of a near-Earth asteroid named Bennu to Earth in 2023 made the first-ever close-up observations of particle plumes erupting from an asteroid’s surface. NASA Mission Reveals Asteroid Has Big Surprises https://solarsystem.nasa.gov/news/877/nasa-mission-reveals-asteroid-has-big-surprises/
To put this into context: the rocks acquire orbital velocity with 2-4 m/s, which they can do by just rolling down a slope and bouncing a bit upwards at some point!EDIT: And more explanation, paraphrasing what was said today during the LPSC meeting: there is a transition between high and low slopes at ±23º, which is where the asteroid's Roche lobe intersects Bennu's surface.