NASA Searches for Big Idea for
In-Space Assembly of Spacecraft (Source: Parabolic Arc)
In the 2017 Breakthrough, Innovative, and Game-changing (BIG) Idea
Challenge, NASA is engaging university-level students in its quest to
reduce the cost of deep space exploration. NASA’s Game Changing
Development Program (GCD), managed by the agency’s Space Technology
Mission Directorate, and the National Institute of Aerospace (NIA) are
seeking novel and robust concepts for in-space assembly of spacecraft —
particularly tugs, propelled by solar electric propulsion (SEP), that
transfer payloads from low earth orbit (LEO) to a lunar distant
retrograde orbit (LDRO).
Why is this important? Think: ‘Reduce, Reuse, Recycle.’ Combined with
advances in robotic technology, SEP tugs (i.e., transportation systems)
enable NASA to move toward the use of more modular space systems that
can be assembled into functional space craft hundreds of thousands of
miles from Earth. The modular design also allows for upgrades,
replacement of components, and reconfigurations for new mission
application. (10/9)
Colonizing Mars Could Put Astronauts
at 'Risk of Chronic Dementia' (Source: WIRED)
Astronauts travelling to Mars and beyond could be at risk from chronic
dementia according to research from the University of California. By
exposing rats to charged particle irradiation and monitoring changes in
their brain cells, the researchers found evidence of damage as much as
six months after the initial exposure. This has been dubbed "space
brain."
In particular, Charles Limoli and colleagues found that exposure to
highly energetic charged particles - much like those found in the
cosmic rays that astronauts will be exposed to during extended
spaceflights - causes significant long-term brain damage that results
in cognitive impairments and dementia. (10/10)
Space Artifacts, Historic Facilities
Damaged by Hurricane (Source: CollectSpace)
Hurricane Matthew blew the top off of a historic rocket, tore part of
the roof off a house used by the astronauts and toppled a space
shuttle-era gantry arm on exhibit at NASA's Kennedy Space Center in
Florida. The space agency shared photos from an aerial survey of the
center, showing areas that sustained damage from the powerful storm.
Hurricane Matthew delivered sustained winds of 90 mph and gusts that
exceeded 105 mph.
"It was determined that the center received some isolated roof damage,
damaged support buildings, a few downed power lines and limited water
intrusion," Kennedy Space Center officials wrote in a statement on
Saturday. "Teams of inspectors are going from building to building
assessing damage." A photograph taken over the KSC Visitor Complex
showed only one noticeable sign of the storm's effects. The top of the
Thor-Delta, one of seven historic boosters standing in the park's
popular Rocket Garden, is missing.
NOAA's satellite imagery showed a replica Mercury-Redstone rocket was
still standing at Launch Complex 5 (LC-5). The 45th Space Wing at
Patrick Air Force Base, which controls the Cape Canaveral Air Force
Station, reported damage to some of its older buildings. A Navaho
missile display located at the station's entrance gate was also
toppled. (10/10)
Correlation Between Galaxy Rotation
and Visible Matter Puzzles Astronomers (Source: Physics World)
A new study of the rotational velocities of stars in galaxies has
revealed a strong correlation between the motion of the stars and the
amount of visible mass in the galaxies. This result comes as a surprise
because it is not predicted by conventional models of dark matter.
Stars on the outskirts of rotating galaxies orbit just as fast as those
nearer the center. This appears to be in violation of Newton's laws,
which predict that these outer stars would be flung away from their
galaxies. The extra gravitational glue provided by dark matter is the
conventional explanation for why these galaxies stay together. Today,
our most cherished models of galaxy formation and cosmology rely
entirely on the presence of dark matter, even though the substance has
never been detected directly. (10/7)
Forget About Flag-Waving From Mars,
Colonies on the Moon are the Future (Source: South China Morning
Post)
Tesla boss Elon Musk who is leading us the wrong way this time with his
SpaceX project. Mars is all wrong. Just for starters, how is any Mars
colony to deal with temperature variations of 160 degrees Celsius,
persistent dust typhoons of up to 150km/h and an atmosphere so thin as
to put the colonists in constant grave danger from solar flares and
cosmic rays?
How do you build any reasonably sized living structure with sufficient
air pressure for humans to doff pressurised space suits and yet not
have this air pressure flip these structures high into the thin Martian
atmosphere? How do you forestall the inevitable air leaks from the
temperature variations and dust storms?
The better option by far was proposed to the US Congress 40 years ago
by Princeton professor Gerard O’Neill. It has unfortunately languished
since then because it requires long and hard work before any
spectacular flag-waving results. O’Neill proposed a moon colony that
would source minerals for building massive metal structures in space,
which would spin to impart gravity to their inhabitants and could be
safely located on the moon’s orbit around earth at what are called the
L4 and L5 Lagrangian points. (10/9)
The Potential for New Zealand Launch
Tourism (Source: New Zealand Herald)
Rockets into space will attract visitors, but how many and how dramatic
the rockets will be are yet to be seen. A Wanaka weather balloon
attracted 1000 people at its launch despite being postponed three times
which bodes well for Wairoa rocket tourism, says a report commissioned
by Hawke's Bay Regional Council (HBRC). The report investigated the
tourism potential of the Rocket Lab space business that plans to launch
satellites from the tip of Mahia Peninsula.
Rocket tourism is an established activity worldwide but the isolation
of the Mahia site and the smaller size of its rockets brought into
question whether rocket tourism will be a game-changer. New
infrastructure such as toilets and accommodation would be needed -
overseas rocket tourism locations have a visitors center - but local
tourism stakeholders were taking a "wait and see" approach before
investing. (10/4)
Harris Opens Innovation Center in
Florida (Source: GovConWire)
Harris Corp. has unveiled a new 23,000-square-foot Global Innovation
Center in Florida that features interactive technology demonstration
stations and workspaces that aim to drive collaboration between
customers, employees and partners. The company said Wednesday the
innovation hub is part of its $150 million investment in central
Florida. (10/7)
Space Station to Trial Aussie-Designed
Thrusters That Could Power Journey to Mars (Source: ABC)
An Australian-designed rocket propulsion system is heading to the
International Space Station (ISS) for a year-long experiment that
ultimately could revolutionise space travel. The technology could be
used to power a return trip to Mars without refueling, and use recycled
space junk for the fuel. (9/28)
MDA Further Erases Maple leaf, Adds
Stars and Stripes (Source: Space News)
Satellite and space-services provider MDA on Oct. 3 moved to further
burnish its new identity as an American company fully eligible to win
U.S. government contracts, naming new directors with U.S. military
credentials and moving its headquarters to San Francisco from Richmond,
British Columbia. The company reiterated that it expects to complete
the transition and secure U.S. security clearances by the end of the
year. (10/4)
Shotwell Says SpaceX “Homing In” on
Cause of Falcon 9 Pad Explosion (Source: Space News)
SpaceX is getting closer to finding the cause of a September pad
explosion that destroyed a Falcon 9, and the company’s president
remains confident the vehicle will return to flight later this year.
SpaceX President Gwynne Shotwell suggested that the accident prior to a
planned static-fire test was not a flaw in the vehicle’s design. “We’re
homing in on what happened,” she said. “I think it’s going to point not
to a vehicle issue or an engineering design issue but more of a
business process issue.” (10/10)
Space Insurers Warn that Current Low
Rates are Not Sustainable (Source: Space News)
Satellite insurers on Oct. 5 said the Sept. 1 failure of a SpaceX
Falcon 9 rocket while preparing a static-fire test, which destroyed a
$200 million satellite, wiped out 20 years of insurance premiums for
prelaunch coverage and will almost surely result in a sharp rate
increase.
But they said the classic space insurance market — covering the moment
from a rocket’s ignition through a satellite’s in-orbit life — is
unlikely to be affected by the Falcon 9 explosion because it is managed
by a different set of insurance underwriters. These insurers warned
that space underwriters are playing a dangerous game of chicken in
allowing launch and in-orbit insurance rates to continue to fall to a
point where a single failure of a European Ariane 5 rocket carrying two
telecommunications satellites would wipe out most of a full year’s
premium payments. (10/10)
ESA Mars Lander Readied for Landing
(Source: Parabolic Arc)
This week, the commands that will govern the Schiaparelli lander’s
descent and touchdown on Mars were uploaded to ESA’s ExoMars
spacecraft, enroute to the Red Planet. The Trace Gas Orbiter has been
carrying the Schiaparelli entry, descent and landing demonstrator since
launch on 14 March. Upon arrival on 19 October, Schiaparelli will test
the technology needed for Europe’s 2020 rover to land, while its parent
craft brakes into an elliptical orbit around Mars. (10/10)
Is Beaming Messages to Other Stars a
Wise Idea? (Source: Air & Space)
This Monday, October 10, at exactly 8 p.m. Universal time (4 p.m. U.S.
Eastern time), an interstellar transmission put together by the
nonprofit group A Simple Response is scheduled to be sent in the
direction of the North Star (Polaris), using the European Space
Agency’s deep space antenna at the Cebreros ground station in Spain.
The transmission will encode 3,775 messages submitted by people from
146 countries, and will be the first such message sent to deep space in
several years.
The North Star seems an odd target, although this won’t be the first
message sent its way (the Beatles song “Across the Universe” was beamed
there in 2008). Polaris is a yellow supergiant about 433 light years
from Earth, and it is difficult to imagine any potentially habitable
planet in its vicinity. Why not choose, for example, the much closer
Proxima b?
One might also wonder how an alien civilization, if it’s able to
intercept the radioed message, would decipher it, since it includes so
many different languages. The organizers chose Polaris because it has
served for centuries as a beacon for sailors in the northern hemisphere
to find their way home. So this particular effort appears to be more
symbolic than a serious attempt to contact an alien civilization. (10/7)
NASA's Robotic Mars Mission Plans
Uncertain Beyong 2020 (Source: Space News)
NASA's plans for robotic Mars missions beyond a 2020 rover remain
uncertain. Jim Watzin, director of the agency's Mars Exploration
Program, said NASA is still studying options for a Mars orbiter mission
that could fly as soon as 2022. That orbiter would likely provide
high-resolution imagery and serve as a telecommunications relay, and
NASA is studying its potential use as part of a larger Mars sample
return effort. Watzin warned that that current era of Mars exploration,
with multiple spacecraft in orbit and on the surface, will end by the
early 2020s as existing Mars spacecraft reach the end of their lives in
the next several years. (10/10)
Proxima Planet Not Detected With
Transit Method (Source: New Scientist)
A planet orbiting the star closest to the sun cannot be detected by one
popular technique. Astronomers said an effort to detect Proxima
Centauri b through transits, where the planet passes between its star
and the Earth, failed to turn up any sign of the planet. Because
transits require a specific alignment of the planet's orbit as seen
from the Earth, astronomers said the odds were against them detecting
the planet, which other astronomers found from Doppler shifts as the
planet tugs on the star. A transit detection would have provided
another tool for studying the Earth-sized planet. (10/10)
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