Comments on: OSIRIS-REx’s sample grab at Bennu in 2020 proved the rubble-pile asteroid has far less cohesion than predicted https://behindtheblack.com/behind-the-black/points-of-information/osiris-rexs-sample-grab-at-bennu-in-2020-proved-the-rubble-pile-asteroid-has-far-less-cohesion-than-predicted/ Mon, 11 Jul 2022 01:09:43 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Andrew_W https://behindtheblack.com/behind-the-black/points-of-information/osiris-rexs-sample-grab-at-bennu-in-2020-proved-the-rubble-pile-asteroid-has-far-less-cohesion-than-predicted/#comment-1341931 Mon, 11 Jul 2022 01:09:43 +0000 https://behindtheblack.com/?p=86274#comment-1341931 Bennu is a bit small for what I’m thinking, in larger asteroids there’s a depth at which the pressure from the material above means the pressure is at about 1 bar, so in principle a relatively light inflatable structure could give an internal atmosphere of that 1 bar.

]]> By: Jeff Wright https://behindtheblack.com/behind-the-black/points-of-information/osiris-rexs-sample-grab-at-bennu-in-2020-proved-the-rubble-pile-asteroid-has-far-less-cohesion-than-predicted/#comment-1341827 Sun, 10 Jul 2022 07:30:24 +0000 https://behindtheblack.com/?p=86274#comment-1341827 That is an interesting idea.

Seeing some ballutes are looked at as aerobrakes, might it survive the outer part sintered into a shell?

The inner shell has cells and other rubble piles put inside and inflated into the ice-cube trays, as it were?

]]> By: Andrew_W https://behindtheblack.com/behind-the-black/points-of-information/osiris-rexs-sample-grab-at-bennu-in-2020-proved-the-rubble-pile-asteroid-has-far-less-cohesion-than-predicted/#comment-1341628 Fri, 08 Jul 2022 19:44:05 +0000 https://behindtheblack.com/?p=86274#comment-1341628 I’ve suggested that asteroid habitats providing protection from solar and cosmic radiation could be made made just by burying a “balloon” deep within an asteroid and inflating it, that looks even more practical now.

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