Life on Venus Could Be From Earth—or
Almost Anywhere Else (Source: TIME)
In the most common panspermia scenario, an asteroid collides with a
life-harboring world, blasting debris back into space carrying microbes
picked up during impact. Many forms of microscopic organisms could
survive tens of thousands of years in a sort of suspended animation as
they wander through space, waiting for chance and gravity to pull them
toward another world, where they could crash land and thrive.
But there's a flaw in that model: the very collisions that pick up the
microbes could also generate enough heat to destroy them. That's not to
say that some organisms couldn't survive, but they would definitely
have a hurdle to overcome. Siraj and Loeb propose a different scenario:
what if the hypothetical asteroid doesn't collide with a living world,
but simply grazes its atmosphere, collecting airborne microbes before
continuing on into space?
Siraj and Loeb estimate that, over the past 3.7 billion years, at least
600,000 space rocks may have grazed our atmosphere, spiraled inward
through the solar system, and been snatched up by Venus's gravity.
Microbial stowaways would not have much likelihood of surviving if they
made it to the inhospitably hot, high-pressure Venusian surface. But if
the rock broke apart in the upper atmosphere where temperatures and
pressure are far lower, the microbes might have found a comfortable
home. (9/25)
SpaceX’s GPS Contract Modified to
Allow Reuse of Falcon 9 Boosters (Source: Space News)
A SpaceX Falcon 9 rocket for the first time next year will launch a
military GPS satellite with a previously flown main booster, the U.S.
Space Force announced Sep. 25. The company reached an agreement earlier
this month with the Space and Missile Systems Center so SpaceX can
launch two GPS satellites next year using previously flown boosters.
SMC said this will save the government more than $52 million in launch
costs.
Although SpaceX routinely recovers and reuses rocket hardware in its
commercial and NASA launches, the U.S. military has only recently
started to allow SpaceX to recover boosters in GPS missions. The
company on June 30 launched the third vehicle of the GPS 3
constellation with a brand-new Falcon 9 booster and recovered it. The
fourth GPS 3 vehicle, scheduled to launch Sep. 29 from Florida, will
fly on a new Falcon 9 that SpaceX will attempt to recover. For the
launches of the fifth and sixth GPS vehicles next year, SpaceX will use
previously flown boosters. (9/25)
SpaceX Handed Loss in Challenge Over
Air Force Contract (Source: Reuters)
A federal judge plans to deny SpaceX’s challenge to U.S. Air Force
contracts awarded to its rivals, writing in a Thursday court filing
that the Pentagon properly assessed the development of SpaceX CEO Elon
Musk’s Starship rocket system as “too risky and expensive.” SpaceX in
its year-long lawsuit had accused the Air Force of unfairly awarding
development contracts to Blue Origin and other competitors for new
rocket systems in 2018. But in a ruling that was briefly posted online
by the court before being sealed, the judge found no wrongdoing by the
Air Force in denying the company funds to help develop Starship, a
fully reusable rocket system that Musk envisions will one day ferry
humans to the moon and Mars. (9/25)
Space Club Plans Revised "Destination
Space" Program for Florida Students (Source: NSCFL)
The National Space Club's Florida Committee announces its annual
Destination Space program will be conducted this year in a revised
format due to COVID-19. The primary difference is that rather than
students coming to Kennedy Space Center, many aspects of the study trip
will be coming to them. Plans are still being finalized, but activities
are expected to include video presentations, copies of an IMAX space
movie for Space Coast schools, a Destination Space Journal for every
student, materials for hands-on activities, virtual tours of Kennedy
Space Center, pre-recorded presentations from a scientist, engineer or
astronaut, etc.
Students will participate in a 7-day countdown to Launch Day, with
lessons and hands-on activities related to Living and Working in Space
with a focus on Mars. Day 8 is “Launch Day” where we hope to have each
student design, build and launch a water bottle rocket. Students will
also participate in “Post Launch” Days 9 & 10 where they will be
designing and planning how to colonize Mars. Sounds like a fantastic
alternative to the traditional Destination Space program!
From the beginning, funding for this program has come from outside
Brevard Public School’s operating budget and is dependent on
contributions from the community. The NSCFL has again pledged a minimum
of $25,000 from the aerospace community towards this important program.
Funding also comes from the Brevard Schools Foundation, which seeks
support from the community at large, and through possible grants that
match funding from private industry. We are requesting our community’s
financial help once again. All contributions to the NSCFL (a
501c3 entity) will go directly to Space Week. Contributions can be made
online at www.nscfl.org. (9/8)
AAC Clyde Space Expects Surge After
Pandemic (Source: Clyde Space)
Cubesat builder AAC Clyde Space says customers that delayed orders
earlier this year because of the coronavirus pandemic are returning,
which should result in a surge in sales late this year and into the
beginning of 2021. AAC Clyde Space expects to end 2020 with roughly 100
million Swedish krona ($11.4 million) in sales, up more than 50% from
2019. The company reported 42 million Swedish krona in sales for the
first half of 2020. (9/24)
European Aerospace Group Gets New
Leadership (Source: Leonardo)
The CEO of Leonardo, Alessandro Profumo, will lead the Aerospace and
Defence Industries Association of Europe (ASD) for a two-year term,
Leonardo announced Sept. 21. ASD represents more than 3,000 small to
medium-sized businesses across Europe, as well as many of the
continent’s largest companies involved in space, defense, aviation and
security. Profumo said he will “work to ensure that the potential of
the [aerospace, defense and security] sector is recognised, deployed
and supported with effective tools and investments, promoting a
continuous and transparent dialogue with European stakeholders.” ASD
has a division called Eurospace that focuses on the space sector.
(9/24)
Billions in Revenues Expected for
Constellation Companies (Source: NSR)
Amazon, OneWeb, SES mPower, SpaceX, and Telesat could generate $68
billion in revenue over the next decade, though some constellations
will be more successful than others, according to NSR. With
constellations launching through 2024, “all eyes will be on the
performance of Broadband and Trunking applications, along with
utilizing software to optimize network and price and avoid interference
as each player tries to maximize revenue,” NSR said. The influence of
megaconstellations could push established geostationary satellite
operators to consolidate in order to compete more effectively,
according to the research firm. (9/24)
Three Fewer Launches for OneWeb
(Source: Space News)
OneWeb has revised its launch contract with Arianespace with three
fewer launches than originally planned. The revised contract, announced
Monday, includes 16 Soyuz launches that will each carry 34 to 36
satellites. The revised contract canceled two Soyuz launches and
removed OneWeb as the customer for the inaugural Ariane 6 launch. Those
Soyuz launches are set to resume in December from the Vostochny
Cosmodrome in the Russian Far East. The revised contract is subject to
approval of OneWeb's restructuring plan led by the British government
and Bharti Global. (9/24)
Ukrainian Space Regulation Review
(Source: Space Daily)
Since independence, Ukraine has established itself as a reliable
producer of rocket and space technology: 165 carrier rockets, developed
and manufactured by Ukraine and partner countries, were used to launch
345 spacecraft into orbit for 25 different countries. Ukraine has
launched 27 spacecraft developed 'in-house'; established the National
Centre for Spacecraft Management and Testing, with a considerable
ground-based infrastructure; developed a group of promising carrier
rockets, "Mayak", propelled with environmentally friendly fuel; and has
become a participant in international projects "Sea Launch", "Ground
Launch", "Dnipro", "Antares" and "Vega", as well as the International
Space Station.
At the same time, the industry has encountered a number of fundamental
problems. Ukraine is one of nine countries that possesses a full cycle
of aerospace hardware engineering and production, but does not use this
potential efficiently. Amongst 18 enterprises managed by the State
Space Agency ("SSA"), seven are unprofitable or on the verge of being
loss-making, and six are economically inactive. Ukraine incurred losses
of about USD1.5 billion within the Sea Launch, the Lybid satellite and
the Alkantra spaceport projects. Ukraine still has neither its own
Earth observation system nor independent access to space, which were
laid down as strategic goals set in the first space programme, in 1993.
Analysing the development of the Ukrainian space industry, one can
conclude that Ukraine is an up-and-coming developer and manufacturer of
space technology, but its management is inefficient and unprofessional.
Click here.
(9/24)
NASA Chief Warns Congress About
Chinese Space Station (Source: Space Daily)
"I'll tell you one thing that has me very concerned -- and that is that
a day is coming when the International Space Station comes to the end
of its useful life," said NASA Administrator Bridenstine. "In order to
be able to have the United States of America have a presence in low
Earth orbit, we have to be prepared for what comes next." To that end,
NASA has requested $150 million for the 2021 fiscal year to help
develop the commercialization of low Earth orbit.
"We want to see a public-private partnership where NASA can deal with
commercial space station providers, so that we can keep a permanent
uninterrupted human presence in low Earth orbit," said Bridenstine. "I
don't think it's in the interest of the nation to build another
International Space Station -- I do think it's in the interest of the
nation to support commercial industry, where NASA is a customer."
Bridenstine warned the lawmakers this was critical to maintain US space
supremacy in the face of a planned Chinese space station, called
Tiangog, that Beijing hopes will be operational by 2022.
China is partnering with 23 entities from 17 countries to carry
out scientific experiments on board. These include both developed and
developing countries, such as France, Germany and Japan, as well as
Kenya and Peru. Editor's Note: China is smart to partner with
third-world countries, to firm up ties that could bring diplomatic and
trade benefits on Earth. NASA under the Obama administration was
lambasted by republicans in Congress for its efforts to partner muslim
countries on the ISS. (9/24)
Experience, Charisma will Steer NASA's
Choice for First Woman on Moon (Source: Space Daily)
Experience, charisma -- and previous exposure to radiation in space --
will guide NASA's history-making decision to choose the first woman who
walks on the moon, according to those familiar with space agency
operations. NASA Administrator Jim Bridenstine has said the woman
selected will be an experienced astronaut who has flown on space
missions. Ten current astronauts meet that criteria, and more could
soon. In addition to expertise, NASA will look at the ability to
perform well on high-profile missions and to connect with the public,
space exploration observers said.
Some of the most experienced astronauts could be ruled out if they have
too much radiation exposure, according to space medicine experts. Among
the potential moon mission candidates, astronauts Christina Koch, 41,
and Jessica Meir, 43, raised their profiles earlier this year by
carrying out the first-ever all-female spacewalk while stationed on the
International Space Station. Koch also set a record for living in space
longer than any other woman at 328 days. (9/23)
Could Life Exist Deep Underground on
Mars? (Source: Space Daily)
Recent science missions and results are bringing the search for life
closer to home, and scientists at the Center for Astrophysics | Harvard
and Smithsonian (CfA) and the Florida Institute of Technology (FIT) may
have figured out how to determine whether life is - or was - lurking
deep beneath the surface of Mars, the Moon, and other rocky objects in
the universe. They suggest that the absence of surface water doesn't
preclude the potential for life elsewhere on a rocky object, like deep
in the subsurface biosphere.
One challenge for researchers was determining the potential for the
existence of water where there appears to be none. "Surface water
requires an atmosphere to maintain a finite pressure, without which
liquid water cannot exist. However, when one moves to deeper regions,
the upper layers exert pressure and thus permit the existence of liquid
water in principle," said Lingam. "For instance, Mars does not
currently have any longstanding bodies of water on its surface, but it
is known to have subsurface lakes."
The research analyzes the "thickness" of the subsurface region - where
water and life might exist in principle - of the nearby rocky objects,
and whether the high pressures therein could rule out life altogether.
According to Loeb, the answer is probably not. "Both the Moon and Mars
lack an atmosphere that would allow liquid water to exist on their
surfaces, but the warmer and pressurized regions under the surface
could allow the chemistry of life in liquid water." The research also
arrived at a limit on the amount of biological material that might
exist in deep subsurface environments, and the answer, although small,
is surprising. (9/24)
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