As Gerard K. O'Neill pointed out over 30 years ago, we should be
capturing small asteroids and comets for processing in Space, to build habitats and replace Earth based mining and energy production.
The idea is to
capture a small asteroid, bring it into orbit around the moon using SEP, and then send astronauts to explore it — a daring and politically contentious concept called the Asteroid Redirect Mission.
Not exact matches
The first concept would fully
capture a very
small asteroid in free space and the other would retrieve a boulder off of a much larger
asteroid.
NASA is currently developing concepts for the redirect mission that will employ a robotic spacecraft, driven by an advanced solar electric propulsion system, to
capture a
small near - Earth
asteroid or remove a boulder from the surface of a larger
asteroid.
This concept images shows ARM robotic
capture Option B, in which the robotic vehicle ascends from the surface of a large
asteroid, on its way to a lunar distant retrograde orbit with a
smaller asteroid mass in its clutches.
How NASA could
capture an
asteroid: A probe approaches and aligns with a
small space rock (above), then unfurls what amounts to a high - tech bag and slips it around the target.
One major question about Phobos and Mars» even
smaller moon, Deimos, is whether they are
captured asteroids or bits of Mars knocked into the sky by impacts.
Due to their
small size and irregular shape, they strongly resembled
asteroids, but no one understood how Mars could have»
captured» them and made them into satellites with almost circular and equatorial orbits.
The bridge mission could be anything from NASA's ambitious plan to
capture an
asteroid and bring it into lunar orbit where astronauts could explore it, to a
small and temporary station where astronauts can learn a little more about fending for themselves while in space.
It had previously been proposed that the two
small moons were either wandering
asteroids that had been
captured by Mars» gravitational influence, or satellites that had coalesced in the wake of a violent collision between the Red Planet and a large impactor.
The formation of this system made of a dual primary and a
small moon is still a mystery, but they found the
asteroid could be a
captured Kuiper body product of the reshuffling of giant planets in our solar system.
there are many
small moons that are probably started out as
asteroids and were only later
captured by a planet;
Even for the
capture of much
smaller asteroids, there will likely be reservations from all areas of society, though the risks would be much less.»