A Giant Planet Seems to Be Lurking
Somewhere in Our Solar System (Source: Science Alert)
When we look at really distant objects, such as dwarf planets beyond
Pluto, we find their orbits are a little unexpected. They move on very
large elliptical (oval-shaped) orbits, are grouped together, and exist
on an incline compared to the rest of the Solar System. When
astronomers use a computer to model what gravitational forces are
needed for these objects to move like this, they find that a planet at
least ten times the mass of Earth would have been required to cause
this.
It is super-exciting stuff! But then the question is: where is this
planet? The problem we have now is trying to confirm if these
predictions and models are correct. The only way to do that is to find
Planet Nine, which is definitely easier said than done. Scientists all
over the world have been on the hunt for visible evidence of Planet
Nine for many years now. Based on the computer models, we think Planet
Nine is at least 20 times farther away from the Sun than Neptune. We
try to detect it by looking for sunlight it can reflect – just like how
the Moon shines from reflected sunlight at night.
However, because Planet Nine sits so far away from the Sun, we expect
it to be very faint and difficult to spot for even the best telescopes
on Earth. Also, we can't just look for it at any time of the year. We
only have small windows of nights where the conditions must be just
right. Specifically, we have to wait for a night with no Moon, and on
which the location we're observing from is facing the right part of the
sky. (2/19)
Fission Fragment Rocket Engine Concept
Puts Planets 100 Light Years Away Within Reach (Source: Auto
Evolution)
We’re yet to build a true outpost on another world, we’re far from
finding ways of keeping astronauts perfectly safe during long voyages
through the vastness of space, and, more importantly, we’re yet to
discover a means of propulsion capable of opening up nearby star
systems within a decent time frame, one that would not require
generation ships to reach.
Ideas on any of the above topics, and much more, are aplenty, but very
few of them have a chance of ever becoming a reality. Yet NASA has a
nose for picking the best ones from this massive crowd of thoughts. It
does so through a program called Innovative Advanced Concepts (NIAC),
which this year recognized no less than 14 concepts as potentially
relevant for the space industry, and awarded them various grants.
One of the ways currently being researched to get spaceships moving is
by using nuclear thermal propulsion (NTP). Such a design calls for the
heat produced by a nuclear reaction (read fission) to be used to
generate thrust. This is done by means of working fluid (most often,
liquid hydrogen) getting heated to a high temperature, expanded, and
expelled through a nozzle. NASA has been looking at this way of doing
things for the past six decades or so. It does so because NTPs promise
to at least double the efficiency of chemical rockets currently in use,
opening the doors to crewed missions to Mars and perhaps even beyond.
(2/21)
China’s LEO Push Looms Over Western
Expansion Efforts (Source: Space News)
Ambitious plans from China for a global broadband network could hamper
Western constellation operators seeking to maximize their international
subscriber numbers. While finer details about these plans remain under
wraps, they come amid China’s aggressive pursuit for more international
infrastructure under its colossal Belt and Road initiative, which seeks
to capitalize on the country’s economic strength to play a higher
profile role in global affairs.
China’s international satellite communications presence is set to
change in the next five to 10 years as the country deploys a global
network in low Earth orbit (LEO). A Chinese LEO constellation with
strong government backing could make it harder for western operators to
compete internationally, particularly in countries with deep political
ties to China. Belarus, Pakistan, Venezuela, Bolivia, Laos, and other
counties that have previously bought GEO satellites from China “might
be more likely to lean towards a Chinese constellation for government
projects,” said Blaine Curcio, a senior affiliate consultant for
Euroconsult. (2/22)
Japan's Iwaya Giken Plans Balloon
Capsule Venture (Source: AP)
A Japanese startup is getting into the stratospheric balloon tourism
business. Iwaya Giken unveiled a design for a capsule that would be
carried aloft to an altitude of 25 kilometers, giving those on board
views of the Earth similar to those seen from space. Unlike Space
Perspective and World View, two companies that are working on large
vehicles capable of holding about 10 people, the Iwaya Giken capsule
has room for only two people. The company plans to offer flights for
$180,000 per person, with the first flight as soon as late this year.
(2/22)
Sidus Space Secures Additional
Launches with SpaceX (Source: Sidus Space)
Sidus Space announced it has signed an agreement with SpaceX to launch
on Transporter missions manifested for 2024 and 2025. This additional
agreement further extends the Company’s relationship with SpaceX,
chosen in part due to their successful and reliable launch
capabilities. Sidus Space expects the Maiden Flight of LizzieSat on
SpaceX Transporter-9 later this year. Along with launching in 2023, the
new agreement adds two additional flights in 2024 and two flights
scheduled for launch in 2025, each of which are on upcoming Transporter
missions. (2/22)
Terran Orbital Wins $2.4 Billion
Contract to Develop 300 Satellites for Rivada (Source: Terran
Orbital)
Terran Orbital announced Wednesday it won a contract worth $2.4 billion
to build 300 satellites for Rivada Space Networks. The satellites,
weighing 500 kilograms each, will carry communications payloads for
Rivada's proposed broadband constellation, with launches scheduled to
begin as soon as 2025. Rivada had previously announced plans for a
600-satellite constellation, and the announcement didn't indicate if
Rivada had downsized its constellation or plans to select a second
vendor. Rivada also has not disclosed what funding it has raised to pay
for this constellation. (2/22)
SpaceX Moves Crew Launch to Feb. 27 (Source:
Space News)
A SpaceX commercial crew mission to the International Space Station has
slipped a day. NASA said late Tuesday it rescheduled the Crew-6 launch
to Feb. 27 to give SpaceX and the agency more time to complete work on
the Crew Dragon and Falcon 9 as well as wrap up several studies of
several minor issues. Crew-6 will deliver NASA, Roscosmos and Emirati
crew members to the station for a six-month stay. The mission is not
affected by the ongoing investigation into a coolant leak on a Progress
spacecraft docked to the station earlier this month.
Roscosmos said Tuesday it believed that "external influences" caused a
hole 12 millimeters across in the Progress radiator from which the
coolant leaked. NASA said it was conducting its own review of images of
the Progress, but cautioned that it was not necessarily caused by a
micrometeoroid or orbital debris impact. (2/22)
SpaceX Says It Is On Track for March
Starship Launch (Source: Space News)
A SpaceX executive said Tuesday that the company remained on track to
perform the first Starship orbital launch attempt next month. Speaking
at the Space Mobility conference Tuesday, Gary Henry, senior adviser
for national security space solutions at SpaceX, said both the Starship
booster and the pad were in "good shape" after a static-fire test
earlier this month. That test was "the last box to check" before an
orbital launch, pending an FAA launch license that he expected the
company to receive in the very near future. That would set the company
up for an orbital launch attempt likely sometime in March, although the
company has not provided a more specific schedule. (2/22)
Space Force Goes Nontraditional with
Commercial Vehicles (Source: Space News)
The U.S. Space Force is looking for ways to support future military
operations with nontraditional space transportation systems and
on-orbit logistics. Maj. Gen. Stephen Purdy, program executive officer
for assured access to space at the Space Systems Command, said at the
Space Mobility conference Tuesday that the service was interested in
using commercially available vehicles to support combatant commands,
which could range from "rocket cargo" delivery to on-orbit servicing of
spacecraft. The Pentagon spends more than a billion dollars a year on
launch services but it’s still too early to project what it might spend
on rocket cargo deliveries or on-orbit services. (2/22)
Purdy: Small Launchers Earned Place in
Launch Procurement Plans (Source: Space News)
Space Force Maj. Gen. Stephen Purdy said that smaller launch companies
made the case to be able to complete in the next round of National
Security Space Launch (NSSL) contracts. He said the draft NSSL Phase 3
procurement released last week was heavily influenced by new players in
the launch industry that want a seat at the table and are investing in
launch systems the government wants to leverage. Phase 3 will have a
two-track approach with one track devoted to more conventional launch
services and the other offering opportunities to companies to compete
for individual launches. There are no guarantees these new vehicles
will be ready or able to launch when Phase 3 missions start in 2027,
but Purdy said the door should be left open. (2/22)
NASA Imagery Shows Chinas Mars Rover
Hasn't Moved in Months (Source: Space News)
Images from a NASA Mars orbiter show that the Chinese Zhurong rover has
not moved for months. An image taken by the Mars Reconnaissance Orbiter
Feb. 7 showed the rover was in the same location as an image taken last
September. Zhurong went into hibernation last May to conserve power
during the winter season at its landing site, but was expected to
resume operations in December. Chinese officials have not provided
recent updates on the status of the rover, and did not mention it
during commemorations this month of the second anniversary of the
arrival of the Tianwen-1 mission at Mars. (2/22)
ClearSpace Passes Gate for First
Planned Debris Mission (Source: Space News)
ClearSpace has completed the first major review for an orbital debris
removal mission. The company said Tuesday the ESA-funded ClearSpace-1
mission passed a review called Key Performance Gate 1 at the end of
last year, allowing the company to start procuring components for the
spacecraft. The Swiss company won a $117 million ESA contract in 2020
to develop the mission, scheduled to launch in 2026 to capture and
deorbit a Vega upper stage left in orbit from a 2013 launch. ClearSpace
is also competing with Japan-based Astroscale for a U.K. Space Agency
contract to remove two as-yet-unidentified spacecraft from LEO in 2026.
(2/22)
Spain's PLD Space Adds $63.9 Million
for Launcher Development (Source: Space Intel Report)
Spanish small-launcher startup PLD Space has brought its fundraising up
to EUR 60M ($63.9M) with support from retail investment platform
Sego Finance. The company seeks to raise UR 150M in a Series C round to
finance its Miura 5 orbital vehicle. PLD's Miura 1 suborbital rocket's
first launch campaign starts in March. (2/22)
Better Tools Needed to Identify
Ancient Life on Mars (Source: Space Daily)
Current state-of-the-art instrumentation being sent to Mars to collect
and analyze evidence of life might not be sensitive enough to make
accurate assessments, according to a research team co-led by a Cornell
University astronomer. In a paper published in Nature Communications,
visiting planetary scientist Alberto Fairen, and an international team
of researchers, claim that ancient organic material in Martian rocks
could be difficult, if not impossible, to detect with current
instruments and techniques. (2/22)
New Transmitter Design for Small
Satellite Constellations Improves Signal Transmission (Source:
Space Daily)
Small satellites have special needs when it comes to transmitter (TX)
technology. For one, they have stringent limitations on power
consumption as they draw energy from solar panels and cannot easily
dissipate generated heat. Moreover, small satellites need to
communicate with fast-moving targets that can be over a thousand
kilometers away. Thus, they require efficient and precise beam steering
capabilities to direct most of the transmitted power towards the
receiver.
On top of this, small satellite TXs have to generate different types of
circularly polarized (CP) signals depending on the situation. Put
simply, they need to faithfully generate both left-handed and
right-handed CP signals to avoid interference with another transmitted
signal with the opposite handedness. Additionally, they sometimes need
to generate dual CP signals to establish high-speed data links.
Satisfying all these requirements simultaneously has proven to be
challenging, especially when TXs are meant to operate with high-speed
communication. Fortunately, a research team from Japan led by Associate
Professor Atsushi Shirane from Tokyo Institute of Technology (Tokyo
Tech), have been working on a convincing solution. An innovative TX
design that solves all the above-mentioned issues, will pave the way
for better small satellite-based communications. The proposed TX
operates from 25.5 GHz to 27 GHz in the Ka-band used for
next-generation high-speed satellite communications. (2/22)
Redwire Partners with Starfish Space
for Otter Pup Satellite Docking Mission (Source: Space Daily)
Jacksonville-based Redwire has partnered with Starfish Space to provide
Redwire's ARGUS space domain awareness camera for Starfish Space's
first-ever satellite docking mission, Otter Pup. Additionally, Redwire
has secured a contract option with Starfish Space to demonstrate
Redwire's Cerebro Resident Space Object tracking software in orbit upon
the completion of the primary mission.
Starfish Space's mission will demonstrate the first-ever docking of two
commercial satellites in low-Earth orbit. Redwire's Argus camera system
will enable Starfish Space's Otter Pup satellite to determine the
relative position of its docking target, a critical capability needed
to achieve mission success. Upon completion of the satellite docking
mission, Redwire may remotely install its Cerebro Resident Space Object
tracking software into the ARGUS camera system, leveraging proven
ExoAnalytics algorithms, to demonstrate space domain awareness mission
applications for the Department of Defense. (2/22)
Envisioning the Next Generation of
Space Telescopes (Source: Space News)
The latest astrophysics decadal survey, called Astro2020 and published
in November 2021, recommended that NASA pursue development of a space
telescope six meters across that operates in the ultraviolet, visible
and near infrared. The telescope, with an estimated cost of $11
billion, would launch in the early 2040s. One of the first steps was to
give that telescope, unnamed in the decadal survey, a moniker. Last
fall, NASA quietly started referring to that telescope as the
“Habitable Worlds Observatory,” using the term in presentations and
congressional testimony.
The designation — a working name for now — is intended to reflect the
telescope’s mission to study potentially habitable exoplanets while
also serving as a general-purpose observatory for astrophysics, he
explained. (It was also, some astronomers noted, an improvement over
the designation NASA has been using: IROUV, an acronym for infrared,
optical and ultraviolet.) Beyond the name, though, there are few
details about the Habitable Worlds Observatory, including even a
notional illustration of it. (2/21)
Texas Plans Huge Public Investment in
Space (Source: Ars Technica)
As part of the state's biennial budget process, Texas Governor Greg
Abbott has called on the state legislature to provide $350 million to
create and fund a Texas Space Commission for the next two years. "With
companies seeking to expand space travel in coming years, continued
development of the space industry in the state will ensure Texas
remains at the forefront not only in the United States, but the entire
world," Abbott stated in his budget document for the 88th Legislature.
"Further investment will cement Texas as the preeminent location for
innovation and development in this rapidly growing industry. Due to
increased competition from other states and internationally, further
planning and coordination is needed to keep Texas at the cutting edge."
In their initial drafts, both the House and the Senate budget bills for
this legislative session include the full $350 million in funding for a
space commission. A source in the Texas Legislature said details about
the commission's funding priorities were expected to be worked out
later in the legislative session, which ends on May 29.
However, the framework for the proposed space commission appears to
have been prepared by a Houston-based workforce-development
organization called TexSpace, which published an annual report in
December calling for the creation of such a commission. According to
this document, the commission would "focus on policy and arranging
statewide strategy by monitoring local, state, and federal policies and
opportunities and establishing an economic ecosystem for Texas' space
enterprises." It would include 15 members, including those appointed by
political officials, as well as an appointee each from SpaceX and Blue
Origin. (2/21)
Want to Travel to Mars? Here’s How
Long the Trip Could Take (Source: Popular Science)
Despite what Star Trek’s warp-speed journeys would have us believe,
interplanetary travel is quite the hike. Take getting to Mars. Probes
sent to the Red Planet by NASA and other space agencies spend about
seven months in space before they arrive at their destination. A trip
for humans would probably be longer—likely on the timescale of a few
years.
There are a lot of things that a human crew needs to survive that
robots don’t, such as food, water, oxygen, and enough supplies for a
return—the weight of which can slow down a spacecraft. With current
technology, NASA calculations estimate a crewed mission to Mars and
back, plus time on the surface, could take somewhere between two and
three years. “Three years we know for sure is feasible,” says Michelle
Rucker, who leads NASA’s Mars Architecture Team in the agency’s Human
Exploration and Operations Mission Directorate. Click here.
(2/21)
Vast Acquires Launcher, Drops Launch Vehicle Development (Source:
Vast)
To accelerate its mission to expand humanity across the solar system by
developing long term human habitation in space, Vast has acquired space
startup Launcher. Vast is building an artificial gravity station with
many times the volume of the International Space Station in low Earth
orbit. While steadily making progress toward this goal, Vast will be
partnering with a global array of customers, including from the
commercial sector and U.S. and international governments and
organizations, for its advanced in-space products.
Notably, this acquisition provides Vast with an established set of
talent to accelerate in-house advanced manufacturing and development
capabilities as well as spacecraft technologies. In addition, with
Launcher’s Orbiter space tug and hosted payload platform, Vast plans to
reach orbit this year to develop and test its on-orbit space station
components and subsystems. Vast will continue the Orbiter space tug and
hosted payload products as well as its staged combustion rocket engine
E-2, and will focus on liquid rocket engine products instead of
developing its own launch vehicle. (2/21)
Russia Claims an “External Impact”
Damaged its Progress Spacecraft (Source: Ars Technica)
Russia's main space corporation, Roscosmos, provided updates on Tuesday
about its two spacecraft that recently suffered failures to their
cooling systems while attached to the ISS. Although there were several
items of note in these updates—which are not readily available to
Western audiences due to Russian Internet restrictions—perhaps the most
surprising claim is that both the Soyuz MS-22 and Progress MS-21
spacecraft were damaged near their heat radiators by "external
impacts."
Although micrometeoroids and specks of orbital debris have periodically
damaged the space station and visiting vehicles during more than two
decades of operation, impacts have never resulted in "serious
consequences" like with the Soyuz and Progress vehicles in the last two
months. So what are the odds that two Russian vehicles would be struck
in the same general area in two months, with both of these strikes
disabling the spacecraft's thermal cooling systems? The odds seem
incredibly low.
Moreover, if there are so many micrometeorites intersecting with the
space station's orbit, why is the outpost not riddled with holes? NASA
does not presently have a sensor or other means of recording hits to
the ISS unless they cause notable damage. But given that the Soyuz and
Progress vehicles only make up 1 percent or less of the station's
footprint in space, the ISS would likely be incurring significant
damage if there was a cloud of micrometeorites or debris. (2/21)
In 'Kerbal Space Program 2', the Fun
Is in the Failure (Source: Vice)
To err is human, but to forgive… that’s Kerbal. That was my overarching
feeling as I played Kerbal Space Program 2 (KSP2), the sequel to the
beloved simulation game of the same name, at a special event held at a
real space center to preview its release on early access on Friday,
February 24.
In the world populated by Kerbals, the game’s cartoonish humanoids,
there is no rocket too faulty for the launchpad, no trajectory too
dangerous to chart, and no Kerbal whose love for spaceflight is
tempered by even the remotest sense of self-preservation. This resolute
affability in the face of certain doom was a big part of the charm of
the first iteration of KSP, initially released in 2011, and it
continues to serve as a reminder of the essential Kerbal
message—failure is fun—in the sequel. (2/20)
NASA is Mapping Duststorms From Space
with This New Device (Source: CNN)
Sand and dust storms are a global phenomenon. These fine dust particles
can be carried by winds across thousands of miles, impacting health and
livelihoods. According to the UN, dust storms have dramatically
increased in recent years due to climate change, land degradation and
drought. Climate scientist Natalie Mahowald hopes that by learning more
about dust storms, we can plan for the future. She’s spent the last two
decades tracking dust across the globe – and now, is working with NASA
on a new instrument called EMIT.
The first-of-its-kind, space-borne imaging spectrometer is helping to
map dust colors. Scientists can use the data in their climate models to
work out how different minerals heat or cool the planet, explains
Mahowald. Each type of dust has its own unique light-reflecting
signature: for example, white dust reflects solar radiation, or heat,
while “red and the dark dust absorbs it,” she says. EMIT (the Earth
Surface Mineral Dust Source Investigation) will “revolutionize what we
can do,” says Mahowald. “We can use that (data) to better understand
what the impact of desert dust is.” (2/20)
DoD's National Security Innovation
Capital Awards $1.5M to New Frontier Aerospace to Expand Hypersonic
Engine Development (Source: New Frontier)
National Security Innovation Capital (NSIC) has awarded a $1.5M
contract extension to New Frontier Aerospace (NFA) to complete the
development of NFA's revolutionary 3D printed Mjölnir rocket engine.
The extension is the next step after NFA's successful delivery of
Mjölnir's first component, developed under an initial $750K contract
awarded in August of 2021. (2/21)
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