Nanocardboard Flyers Could Serve as
Martian Atmospheric Probes (Source: Space Daily)
This summer, NASA plans to launch its next Mars rover, Perseverance,
which will carry with it the first aircraft to ever fly on another
planet, the Mars Helicopter. As the first of its kind, the Mars
Helicopter will carry no instruments and collect no data - NASA
describes merely flying it all as "high-risk, high-reward" research.
With the risks of extraterrestrial flight in mind, Penn Engineers are
suggesting a different approach to exploring the skies of other worlds:
a fleet of tiny aircraft that each weigh about as much as a fruit fly
and have no moving parts. These flyers are plates of "nanocardboard,"
which levitate when bright light is shone on them. As one side of the
plate heats up, the temperature differential gets air circulating
through its hollow structure and shooting out of the corrugated
channels that give it its name, thrusting it off the ground. (4/22)
Antimatter Discovery Reveals Clues
about the Universe’s Beginning (Source: Scientific American)
In the beginning, there was matter and antimatter, and then there was
only matter. Why? This question is one of the defining mysteries of
physics. For decades theorists have come up with potential solutions,
most involving the existence of extra particles beyond the known
species in the universe. Last week scientists announced tantalizing
findings that point toward one possible solution, but the data fall
short of a definitive discovery. Whatever the final answer is,
resolving the question may tell us more than just why we live in a
universe of matter—it could expose secrets from the earliest epochs of
the cosmos or even connect us to the invisible dark matter that eludes
scientists.
Most of the theories about how matter got the upper hand over
antimatter fall into two main camps. One, called electroweak
baryogenesis, posits extra versions of the Higgs boson—the particle
related to how everything else gets mass. If these Higgs cousins exist,
they could have helped set off an abrupt phase transition, akin to the
shift when water goes from liquid to gas, early in the universe that
might have led to slightly more matter than antimatter in space. When
matter and antimatter come into contact, they annihilate each other, so
most of the stuff in the young universe would have been destroyed,
leaving behind just a small surplus of matter to make the galaxies and
stars and planets around us.
The other leading theory, called leptogenesis, stems instead from
neutrinos. These particles are much, much lighter than quarks and pass
through the cosmos ethereally, rarely stopping to interact with
anything at all. According to this scenario, in addition to the regular
neutrinos we know of, there are extremely heavy neutrinos that are so
gargantuan that they could have been forged only from the tremendous
energies and temperatures present just after the big bang, when the
universe was very hot and dense. When these particles inevitably broke
down into smaller, more stable species, the thinking goes, they might
have produced slightly more matter than antimatter by-products, leading
to the arrangement we see today. (4/23)
Virgin Orbit Ventilators Granted
Emergency Use Authorization (Source: Virgin Orbit)
Virgin Orbit, Sir Richard Branson’s responsive satellite launch
company, announced today that regulators at the U.S. Food and Drug
Administration (FDA) have granted an Emergency Use Authorization for
the immediate delivery and use of a new “bridge” ventilator designed
and built by the aerospace firm. With that authorization now in place,
Virgin Orbit expects to begin delivering ventilators to hospitals
within the next few days.
Guided by the medical expertise and clinical experience of the Bridge
Ventilator Consortium — a group of doctors, medical researchers, and
medical device engineers collaborating to advise multiple different
low-cost ventilator efforts — Virgin Orbit has leveraged its extensive
engineering design, manufacturing, and operational capabilities to
quickly design a novel ventilator, test prototype units, and ramp up
production of these devices. (4/23)
Russia Starts Adapting RD-180 Engine
Used in US for Super-Heavy Yenisei Rocket (Source: Sputnik)
Russia's Energomash rocket engine manufacturer, which is part of state
space corporation Roscosmos, has started to adapt RD-180 engines, which
have been in use for US Atlas carrier rockets, and the medium-class
Soyuz-6 and super-heavy Yenisei launch vehicles. "The RD-180 engine,
which has unique flight statistics, will be used in the first stage of
the Soyuz-6 rocket, which can replace the Soyuz-2 medium-class launch
vehicle in the future, as well as in the central block of the
super-heavy launch vehicle," Igor Arbuzov said.
According to him, the adapted engine, which was previously called
RD-180MV, will have enhanced fire protection, new filters, coatings,
modern materials, a new control system and a high-speed emergency
protection system. The first launch of Soyuz-6 is scheduled for 2025
from the Baikonur spaceport, while the first Yenisei is planned to be
launched from the Vostochny space centre in 2028. Russia has delivered
116 domestically built RD-180 engines for US carrier rockets since
1990, and 89 of the engines have already been used during launches.
(4/22)
SpaceX Launches 60 More Starlink
Satellites, Lands Booster (Source: Space News)
SpaceX successfully launched 60 Starlink satellites Wednesday
afternoon. The Falcon 9 lifted off from the Kennedy Space Center in
Florida at 3:30 p.m. Eastern and deployed the stack of Starlink
satellites into low Earth orbit 15 minutes later. The Falcon 9 first
stage, on its fourth flight, landed on a droneship in the Atlantic. The
launch means that SpaceX has more than 400 operational Starlink
satellites in orbit, enough for the company to potentially start
limited service. SpaceX CEO Elon Musk, in a tweet after the launch,
said a "private beta" of Starlink services will start in about three
months, with a more public beta test of the service in six months.
(4/23)
Swamp Politics, Ligado, Trump, and GPS
(Source: Quartz)
The FCC has ended a controversial, nearly decade-long battle over a
chunk of radio wave real estate. Their decision will allow a company
called Ligado to build an internet-of-things communications network
using a band of spectrum that had previously been reserved for
satellite communications. Myriad US government agencies (and a number
of private satellite operators) opposed the decision, fearing that
Ligado’s network will interfere with the Global Positioning System
(GPS), a vital cog for both the US economy and its military. But
another chunk of the government believes that Ligado’s network will
strike a blow against Chinese 5G hegemony, and so should be allowed.
“I’ve never seen it a mess like this before,” said Harold Feld, an
attorney at Public Knowledge, a nonprofit that works to promote free
expression and communications innovation. “All of the agencies are just
acting on their own without any effort to create a coherent federal
policy.” The Departments of Defense, Commerce, Interior, Justice,
Homeland Security, Energy, and Transportation, as well the National
Science Foundation, the Federal Aviation Administration, the Coast
Guard and NASA, all called on the FCC to reject the license. But Ligado
spent almost $3 million in 2019 alone on lobbyists connected to the
Trump administration.
Ligado won support from US Attorney General Bill Barr—despite the
Justice Department signing on to a letter of opposition in February—and
Secretary of State Mike Pompeo. After the FCC’s decision, Barr said
that “swift FCC action on spectrum is imperative to allow for the
deployment of 5G. This is essential if we are to keep our economic and
technological leadership and avoid forfeiting it to Communist China.”
(4/23)
DoD "Very Concerned" About Ligado GPS
Interference (Source: Space News)
The chief of staff of the Air Force is "very concerned" about the
prospects of GPS interference from Ligado. Gen. David Goldfein said
both he and Gen. Jay Raymond, chief of space operations, are worried
the Ligado system approved by the FCC this week could interfere with
GPS signals in a neighboring spectrum band. Goldfein noted that any
future actions to address interference with GPS will have to be
approved by the Defense Department, the Joint Chiefs of Staff and the
military's unified combatant commands. (4/23)
NEC Wins Contract for Vietnam Satellite
(Source: Nikkei)
NEC has won a contract to build a radar satellite for Vietnam. The
deal, to be formally announced soon, involves a satellite weighing 570
kilograms that will be launched on an Epsilon small launch vehicle in
2023. The contract is valued at $190 million. The contract marks the
first sale of a Japanese Earth observation satellite to a foreign
customer and a move by NEC to work more with governments rather than
commercial customers. (4/23)
Xtar Considers Satellite Life Extension
(Source: Space News)
Xtar is considering satellite life extension to broaden its global
coverage. Xtar is deciding with its partner Hisdesat how to best keep
the SpainSat and Xtar-Eur satellites flying after their replacements
launch in 2023. One option is to work with a company like Northrop
Grumman on satellite life extension systems, allowing those older
satellites to remain in operation and be moved to cover the
Asia-Pacific region, where the company currently doesn't offer service.
(4/23)
Scientists Warn of NASA Budget Cuts
for Mars (Source: Space News)
Scientists warn proposed cuts in NASA's Mars exploration program could
jeopardize the broader effort. NASA's fiscal year 2021 budget proposal
would end funding for the 2001 Mars Odyssey orbiter and cut funding for
the Curiosity rover. Both missions are working well and were highly
rated in a recent senior review of extended missions, scientists said
at a meeting last week, adding they were surprised that they were
targeted for cuts. NASA officials have previously said that overruns on
the Mars 2020 mission forced "austerity across the portfolio" of other
operating Mars missions. The proposed cuts, and lack of approved
missions beyond Mars 2020, put the overall Mars exploration at risk,
scientists said. (4/23)
Swarm to Launch SpaceBee Satellites
with Momentus on Falcon-9 (Source: Space News)
Swarm Technologies is working with in-space transportation startup
Momentus to deploy its satellites. Momentus will arrange rides for 12
Swarm SpaceBee satellites on a SpaceX Falcon 9 rideshare mission in
December 2020 with additional SpaceBee launches scheduled in 2021 and
2022. The Momentus system will allow Swarm's satellites to be
distributed in different orbital planes in order to build out is global
constellation for internet-of-things services. (4/23)
Rocket Lab Hires Washington Lobbyists
(Source: Space News)
Rocket Lab has signed up a Washington lobbying firm as it tries to win
more government business. Rocket Lab has hired the government affairs
firm DLA Piper, according to a lobbying registration form filed
Wednesday. The company is hiring a lobbying firm as it seeks to grow
its U.S. government business and works to become a dominant player in
the dedicated small launch market. (4/23)
BlackSky Offering Telework Package
(Source: Space News)
Geospatial intelligence provider BlackSky is offering a version of its
services for teleworking analysts. Users of the BlackSky service draw
intelligence from a combination of remote sensing satellite images,
sensors, media and other reports, analyzed with machine learning and
artificial intelligence techniques. BlackSky's telework package, called
Spectra On-Demand Secure Bundle, was designed for intelligence analysts
who handle unclassified but still sensitive information. (4/23)
DoD and IC Skirmish Over NRO
(Source: Breaking Defense)
The Defense Department and the intelligence community are battling over
the future of the National Reconnaissance Office and space acquisition.
The Defense Department is studying Space Force acquisition issues,
including the possibility of the new service taking over NRO
acquisition authority. Some in the intelligence community, by contrast,
argue that they should have full control of acquisition of any
intelligence, surveillance and reconnaissance systems, including
satellites. (4/23)
USGS Releases Moon Map (Source:
Space Daily)
Have you ever wondered what kind of rocks make up those bright and dark
splotches on the moon? Well, the USGS has just released a new
authoritative map to help explain the 4.5-billion-year-old history of
our nearest neighbor in space. For the first time, the entire lunar
surface has been completely mapped and uniformly classified by
scientists from the USGS, in collaboration with NASA and the Lunar
Planetary Institute.
The lunar map, called the "Unified Geologic Map of the Moon," will
serve as the definitive blueprint of the moon's surface geology for
future human missions and will be invaluable for the international
scientific community, educators and the public-at-large. The digital
map is available online now and shows the moon's geology in incredible
detail (1:5,000,000 scale).(4/23)
The Falcon 9 Just Became America’s
Workhorse Rocket (Source: Ars Technica)
Wednesday's successful launch of 60 Starlink satellites checked a few
boxes for SpaceX. For the first time in three tries, the company
successfully landed a first stage booster on an autonomous drone ship
in the Atlantic Ocean. The flawless flight brings SpaceX one step
closer to the much-anticipated launch of a Crew Dragon spacecraft, as
early as May 27. And, of course, the company extended its Starlink
constellation to about 420 satellites, bringing SpaceX closer to
offering broadband Internet service to North America from space.
But SpaceX also made a huge, symbolic leap on Wednesday. With the
latest Starlink launch, the Falcon 9 rocket has now launched 84 times.
This surpasses the total flights by United Launch Alliance's Atlas V
rocket. The Atlas V rocket first launched on August 2, 2002—about three
months after SpaceX was founded by Elon Musk and two other engineers,
Tom Mueller and Chris Thompson. Since then, the Atlas V rocket has
flown an average of a little fewer than five missions per year. All
were rated as successes. (4/23)
Benchmark Space Systems to Offer
Propulsion Systems in Space Catalog (Source: Orbital Transports)
Benchmark Space Systems announced that its DFAST and B125 small
satellite propulsion systems would be available through the Orbital
Transports Space Catalog. These innovative propulsion systems have been
specifically designed to improve safety and capability for spacecraft
ranging from 3U through ESPA class. Both product lines use green
propellants and launch unpressurized thanks to a patented On-Demand
Pressurization System and micromixing techniques. (4/23)
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