Space Junk Removal Is Not Going
Smoothly (Source: Scientific American)
A Space Age “tragedy of the commons” is unfolding right under our
nose—or, really, right over our head—and no consensus yet exists on how
to stop it. For more than a half-century, humans have been hurling
objects into low-Earth orbit in ever growing numbers. And with few
meaningful limitations on further launches into that increasingly
congested realm, the prevailing attitude has been persistently
permissive: in orbit, it seems, there is always room for one more.
After so many decades of the buildup of high-speed clutter in the form
of spent rocket stages, stray bolts and paint chips, solid-rocket-motor
slag, dead or dying satellites and the scattered fragments from
antisatellite tests—all of which could individually damage or destroy
other assets—low-Earth orbit is finally on the verge of becoming too
crowded for comfort. And the problem is now poised to get much worse
because of the rise of satellite “mega constellations” requiring
thousands of spacecraft. Starlink is but one of many similar projects:
Another mega constellation from a company called OneWeb is already
being deployed. And Amazon’s Project Kuiper is seeking to create a mega
constellation of up to 3,200 satellites in the near future.
As the congestion has grown, so too have close calls between orbiting
assets. The International Space Station, for instance, regularly tweaks
its orbit to avoid potentially hazardous debris. Worse yet, there has
been an uptick in the threat of full-on collisions that generate
menacing refuse that exacerbates the already bad situation. Consider
the February 2009 run-in between a dead Russian Cosmos satellite and a
commercial Iridium spacecraft, which produced an enormous amount of
debris. Click here.
(4/14)
China Calls for Banning Space Weapons
(Source: Sputnik)
China is calling on the global community to urgently start the
negotiations on the space arms control, which should be based on a
document proposed by Beijing and Moscow, the foreign ministry's
spokesman, Zhao Lijian, said. "We are calling on the international
community to start negotiations and reach agreement on arms control in
order to ensure space safety as soon as possible," Zhao said, noting
that the talks should be based on the draft agreement proposed by the
two countries. "China has always been in favor of preventing an arms
race in space, it has been actively promoting negotiations on a legally
binding agreement on space arms control jointly with Russia." (4/14)
Satellite Network to Find Carbon
Super-Emitters (Source: BBC)
A constellation of satellites will be flown this decade to try to
pinpoint significant releases of climate-changing gases, in particular
carbon dioxide and methane. The initiative is being led by an American
non-profit organisation called Carbon Mapper. It will use technology
developed by the US space agency over the past decade. The satellites -
20 or so - will be built and flown by San Francisco's Planet company.
(4/15)
Putin Approves Separate Russian Space
Station as ISS Faces “Avalanche” of Failures (Source: Parabolic
Arc)
The Kremlin-backed news channel RT reports that Russian President
Vladimir Putin has signed off on a new space station called ROSS to
replace an International Space Station (ISS) expected to suffer an
“avalanche” of failures after 2025. -- In recent years, the ISS has
begun to fall apart, with astronauts now frequently discovering cracks.
Last week, it was revealed that Russian cosmonauts were still working
on plugging a leak first noticed in 2019. The ongoing problems with the
international station have prompted Moscow to begin creating a
replacement.
Called ROSS, the Russian orbital satellite will consist of three to
seven modules and will be able to carry up to four people. Although
only approved by Putin on Monday, on the 60th anniversary of Yuri
Gagarin’s landmark first human spaceflight, the project has been in the
works for some time. Last November, the first deputy designer general
for space contractor RSC Energia revealed his belief that Russia needed
to get started on a new station, saying the ISS was already falling
apart. (4/14)
A Zoologist Imagines What Alien Life
Might Look Like (Source: Salon)
Animals as varied as sharks, salamanders, and duck-billed platypuses
can detect electric fields around them, while some fish, including the
South American knifefish and various species of African elephantfish,
can actually generate unique, complex electric fields, which they use
to communicate information about their social status, sex, and
dominance position within their social group.
Could animals like these exist on other planets? On a celestial body
with completely dark oceans, such as Saturn's moon Enceladus, our
notion of evolution would support this method of communication, leading
us to believe that aliens on such a planet might concoct their language
out of electric signals. These are the kinds of musings that can help
us postulate about alien life, according to "The Zoologist's Guide to
the Galaxy: What Animals on Earth Reveal About Aliens — and Ourselves,"
by University of Cambridge zoologist Arik Kershenbaum.
Kershenbaum has studied wolves in Yellowstone National Park, dolphins
in the Red Sea, and small mammals called hyraxes in Israel, and the
crux of his argument revolves around his experience as an evolutionary
biologist. If we can understand how life evolves here on Earth, we can
then ask pertinent questions about how and why creatures on other
planets might develop in a certain way. After all, Kershenbaum points
out, the laws of physics are constant throughout the universe, so we
can view Earth as an "evolutionary testing ground" for realistic
solutions to life's problems. (4/13)
The Era of Reusability in Space Has
Begun (Source: Ars Technica)
A large, passenger van-sized spacecraft sidled up to an active, 6-ton
satellite on Monday afternoon about 36,000 km above the Earth's
surface. Slowly, ever so slowly, the distance between the two vehicles
closed. There was nothing wrong with the satellite, which is 17 years
old and owned by Intelsat. All the while, on Wednesday, it continued
actively delivering broadband and other media services across Europe,
the Middle East, and Africa. But it was running desperately low on fuel
to maintain its position, and Intelsat would have soon had to send the
vehicle to a "graveyard" orbit.
Northrop sold the first two mission-extension missions to a commercial
customer, Intelsat. However, the company expects that much of its
future business may come from governments seeking to protect and extend
the life of their most valuable assets in space. “Government interest
is accelerating as they see this capability bearing out,” said Tom
Wilson, a vice president at Northrop Grumman and president of its
SpaceLogistics subsidiary. "We’re on the cusp of some bigger
initiatives with them." (4/13)
Beware of 'Oxygen False Positives' in
Search for Signs of Life on Other Planets (Source: Space Daily)
In the search for life on other planets, the presence of oxygen in a
planet's atmosphere is one potential sign of biological activity that
might be detected by future telescopes. A new study, however, describes
several scenarios in which a lifeless rocky planet around a sun-like
star could evolve to have oxygen in its atmosphere. The new findings
highlight the need for next-generation telescopes that are capable of
characterizing planetary environments and searching for multiple lines
of evidence for life in addition to detecting oxygen. (4/14)
Russia Seeks Binding Treaty Against
Space Weapons (Source: Sputnik)
Russia has called for talks to create a legally binding international
instrument that would ban the deployment of any type of weapons in
space, Russian Foreign Minister Sergey Lavrov said on the 60th
anniversary of Yuri Gagarin's historic space flight. The anniversary of
the first Soviet cosmonaut's flight, marking the beginning of
humanity's space era, is celebrated every year in Russia as
Cosmonautics Day on April 12. On the same day, the world marks the
International Day of Human Space Flight. (4/13)
China Considers Process for Lunar
Sample Management (Source: Space Daily)
China has set up an expert committee for lunar samples, the China
National Space Administration (CNSA) said. According to the regulations
on lunar sample management, the CNSA established the committee as an
expert advisory institution for the management of lunar samples. The
committee aims to give full play to the scientific value of lunar
samples and standardize their management. It will exercise the
functions of review and consultation related to lunar samples following
the principles of fairness, impartiality and openness, said the CNSA.
(4/14)
Employment and Investment in Private
U.S. Space Industry on the Rise (Source: Florida Today)
Despite other sectors of the economy experiencing a downturn due to
COVID-19, the aerospace industry is soaring to new heights. Some
might say astronomical heights. A new report released by the non-profit
Space Foundation found that U.S. private space employment has reached a
nine-year high.
“Space is now home to the most dynamic and innovative economy on the
planet, and that is why Space Foundation’s Center for Innovation and
Education is so dedicated to enabling and expanding access to build a
skilled workforce for tomorrow,” said Tom Zelibor, CEO, Space
Foundation. “There has never been a better time to find a place in the
space economy.”
Analysis of the U.S. Labor Bureau of Statistics for five key space
sectors showed that hiring increased in all five adding nearly 5,000
workers in 2020, a 3.2% increase from 2019. In 2020, private space
employment totaled 147,953 workers, the highest level since 2011, the
year the space shuttle program was coming to an end and 149,818 were
employed. (4/14)
China and Russia Are Launching the New
Cold War Into Space (Source: Bloomberg)
As the dinosaurs could tell you if they weren’t all dead, a well-aimed
rock dropped down the gravity well from space can pretty much be a
game-ender, civilization-wise, making the defense of space actually
kind of a big deal. China and Russia, America’s adversaries in the new
cold war, seem to get this and have big plans to militarize the void,
writes James Stavridis.
They’re teaming up on a moon base, raising the specter of “Ad
Astra”-style rover shootouts; they're also testing out blowing up
satellites, the very thing that kicked off the plot in “Gravity.” But
despite Russia’s long and glorious history in space, its program has
fallen on hard times lately, writes Clara Ferreira Marques. Too much
central planning and not enough cash or entrepreneurialism mean Russia
is fast losing ground. Wealthy space hobbyists such as Bezos and Elon
Musk could help the U.S. keep an edge on its rivals. (4/12)
ULA's RocketShip Documents Journey to
Cape Canaveral and Vandenberg (Source: ULA)
Navigating both rivers and open oceans, the highly maneuverable R/S
RocketShip plays a critical role in all missions launched by United
Launch Alliance (ULA). Let’s take a ride with the vessel as it leaves
Decatur, AL to deliver the Delta IV Heavy rocket for the National
Reconnaissance Office's NROL-82 mission to Vandenberg Air Force Base,
California. Click here
to see the video. (4/14)
MBRSC Teams Up with Japan’s ispace on
Emirates Lunar Mission (Source: ispace)
The Mohammed Bin Rashid Space Centre (MBRSC) has signed a contract with
Japan’s ispace, inc. (ispace), under which the latter will provide
payload delivery services for the ambitious Emirates Lunar Mission.
Under this agreement, ispace becomes a key strategic and implementation
partner to MBRSC on the Emirates Lunar Mission, the first of its kind
from the Arab world.
The ‘Rashid’ rover will be transported to the Moon on ispace’s lunar
lander during the company’s ‘Mission 1’ in 2022 as part of its
commercial programme known as ‘HAKUTO-R’. Under the terms of the
agreement, the Japanese lunar exploration company will deliver the
Emirates Lunar Mission’s ‘Rashid’ rover to the Moon, provide wired
communication and power during the cruise phase, and engage in wireless
communication on the lunar surface. The project is a key part of the
UAE’s space exploration strategy, which is centred around building new
knowledge capabilities, inspiring future generations to pursue space
science and research, and fostering global collaboration. (4/14)
US Mint to Honor Astronaut Sally Ride
on 'American Women' Quarter (Source: CollectSpace)
The first female U.S. astronaut to fly into space will be honored by
the United States Mint in 2022, leading off a series of circulating
coins depicting notable American women. Sally Ride, who famously made
history launching on the space shuttle in 1983, will be featured as
part of the Mint's American Women Quarters Program. The late astronaut
will be one of the first two women represented on the new coins, which
will be issued through 2025. (4/14)
Lockheed Martin Designs Mid-Size
Satellite Bus (Source: Space News)
Lockheed Martin announced a new line of satellites designed for
space-based surveillance. The company is pitching the new mid-size
satellite, based on its LM400 bus, as an alternative to tactical
surveillance platforms like airplanes and drones. Lockheed sees
tactical intelligence, surveillance and reconnaissance satellites as
playing a central role in the Pentagon's efforts to connect weapons
systems from all military services, an initiative known as "joint
all-domain command and control." Those satellites would be
mass-produced at its Gateway Center facility in Denver. (4/14)
York Space Systems Moves Toward
Automation of Constellation Operations (Source: Space News)
York Space Systems is finding ways to automate satellite operations to
save time and money. The company said automation allowed it to reduce
the number of people needed to operate a constellation from 15 to zero.
Automating satellite operations is part of the company's efforts to
reduce costs and increase capabilities. York is currently building 10
satellites in its Denver facility, which is designed to produce 20
spacecraft simultaneously. (4/14)
SLS Core Stage Coming Soon to KSC
(Source: NASA)
NASA says the Space Launch System core stage tested last month will
soon be ready to ship to the Kennedy Space Center. The SLS core stage
performed an eight-minute static-fire test of its four engines at the
Stennis Space Center March 18, a test the agency said appeared
"flawless." Workers have since refurbished the stage and made other
preparations for its shipment by barge later this month to the Kennedy
Space Center for the Artemis 1 launch. (4/14)
Slingshot Aerospace Wins Space Force
Contract for Missile Tracking Software (Source: Space News)
Slingshot Aerospace won a Space Force contract to develop software to
help satellite operators visualize missile detection. The $1.3 million
contract, announced Tuesday, covers development of a graphics tool that
makes it easier for operators to view and interact with complex data
collected by the Space Force's overhead persistent infrared (OPIR)
sensor satellites, used to detect and track missile launches. Slingshot
will partner with Zoic Labs on the project; Zoic Labs' parent company,
Zoic Studios, creates visual effects for Hollywood movies. (4/14)
No comments:
Post a Comment