Fall 2016 Intern
In the 2015 movie The Martian, NASA astronaut Mark Watney
is stranded on Mars and must spend months living in “the Hab,” which is
essentially a large temperature- and atmosphere-controlled bubble made from a specialized
canvas-like material. While this is—quite literally—something straight out of a
sci-fi novel (Andy Weir’s eponymous 2011 novel), scientists at NASA have
partnered up with Bigelow Aerospace to develop something
similar for their first trip to the red planet.
On April 8, 2016, Bigelow Aerospace
and NASA sent the Bigelow
Expandable Activity Module (BEAM) to the International Space Station (ISS).
BEAM is a cylindrical compartment that is stored as a compressed disk and can
be expanded to a full-sized space. BEAM was developed to act as a potential
work/living space for astronauts on long deep-space voyages. But first, the
BEAM technology must be put to the test! BEAM will stay on the ISS, in its
expanded form, for two years.
During this trial, the astronauts
living aboard the ISS will check BEAM periodically to collect data and evaluate
its structural design. Following its stay on the ISS, BEAM will be detached from
the station—but don’t worry! In the atmosphere, BEAM will break apart and burn
up, so no harmful particles will make it to Earth’s surface. This is actually
an oft-used practice for releasing spacecraft in space, and it certainly keeps
space garbage from building up.
The BEAM is an attractive
alternative to building larger space stations because of its potential for
efficiency. Materials intended for space must be sent (via rocket power)
through our atmosphere and away from the planet’s gravitational pull. Because
of this, the lighter the materials are, the better! The canvas-like material
that forms BEAM is lightweight, which makes it easier to send into outer space.
Additionally, BEAM is compactible, which saves room on the rockets, which leaves
more room for other materials, which saves money.
Some interesting
specs: BEAM weighs about 3,000 pounds. Once in space, it can be expanded to
its full size, which is about 565 cubic feet. The materials used for BEAM’s
walls form layers that deflect various space debris, shield radiation, regulate
temperature and protect against leaks. Interestingly, BEAM has no windows. Who
knows . . . maybe one day?
To get an idea of how BEAM works
with the ISS, check out this
animation of its installation—it’s out of this world!
Did You Know?
In October of 2016, President Obama
gave a speech
committing NASA and private space-tech companies to a manned mission to Mars by
the 2030s. BEAM is one of the many steps in getting
NASA ready for this awesome feat!
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