Source – Wired Science
When the Obama administration’s 2014
federal budget gets released in early April, it might include a curious item: a
$100 million request for NASA to conduct a mission to capture an asteroid and
bring it back to Earth.
This idea comes from an
article published March 28 in Aviation Week and Space Technology,
which reports on the space industry. The plan would identify a small asteroid,
grab it with a robotic spacecraft, and tug it to the vicinity of our planet,
perhaps somewhere near the moon. Such a mission was the subject of a two-day
meeting of scientists and engineers at Caltech organized by the Keck Institute
for Space Studies in 2011.
The somewhat
insane-sounding idea was deemed technically feasible by attendees at that meeting,
perhaps by using a large magnet or harpoon-like anchor to secure the giant space
rock. The Keck meeting concluded that the entire operation would cost about
$2.6 billion and require between six and 10 years to tug a roughly 7-meter
asteroid back to Earth. NASA has been mulling the merits of such a plan since January. There are
plenty of targets: Nearly 20,000 asteroids exist quite close to our planet and
President Barack Obama has previously stated that he would like to send humans to explore one of these bodies around 2025.
Going
to any asteroid in its current orbit would likely be a six-month trip. NASA
Administrator Charles Bolden discussed the president’s plan in December, saying that Obama
“did not say NASA had to fly all the way to an asteroid. What matters is the
ability to put humans with an asteroid.” An asteroid that was brought nearer to
Earth could conceivably take only a week or so for a round trip.
The mission would be a
proving ground for new technology, help make scientific discoveries about the
early solar system, and give NASA something to do with the enormous
new rocket it’s building. It could also provide important
information to several private companies that want to mine asteroids in the
near future.
Finally, in the aftermath of the bolide that exploded over Russia, the world’s attention is turned to the need to deflect potentially
dangerous asteroids.
Rumors have often
swirled around bold new plans for NASA, including a recent idea that the agency
could construct a space station that would orbit the moon. That
mission has yet to appear but it’s worth noting that the original source of it
came from space policy expert John Logsdon of George Washington University and
not from anyone within NASA. Aviation Week is known for having
contacts inside the U.S. military and space industries.
Given the large funding
needed and the cost-cutting mindset of the current Congress, it’s not entirely
clear if NASA can afford to wrangle an asteroid for some interplanetary feng
shui. The presidential budget request is set to be unveiled April
10, several months later than usual because of complications arising from the
sequester, a congressionally mandated across-the-board budget cut that will be
takingmore than a billion dollars from NASA’s overall
funding. It’s possible that the $100 million in the administration’s
request will be a down payment for the first part of such a mission.
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