Litet nyheter från och kring Yttre Rymden. En sann sf-fan längtar ju till de
Vita Prickarna i ett Svart Mörker!
* Lyssna till den svensk-amerikanska astronauten Jessica Mer som Sommar-pratade
i helgen: https://sverigesradio.se/avsnitt/jessica-meir-sommarprat-2021
* Svenska Rymdbolaget, numera Swedish Space Corporation, fortsätter planera för
småsatelliter uppskjutna från Esrange i Lappland:
https://www.dailyscandinavian.com/sweden-a-hub-for-commercial-satellites/ ;
"Sweden wants to position itself as a hub for commercial satellites and is
launching a base in the Arctic wilderness aiming to be Europe’s first. Will
Sweden beat SpaceX founder Elon Musk’s Starbase plans in Texas? Will Sweden be
the next hub for commercial satellites? The reindeer will probably not be happy
when the Swedish government is turning an old research base above the Arctic
Circle into a state-of-the-art satellite launching center. The business
development agency LTU Business has on behalf of the northern Swedish regional
space development program RIT2021 undertaken a study which concludes that a
space center in and around the town of Kiruna could double in size over the
next 15 years and result in a directly-employed workforce of 1,000."
* Hubble-rymdteleskopet har krånglat, men nu är det tydligen fixat.
https://www.nbcnews.com/science/space/hubble-space-telescope-fixed-month-no-science-rcna1443
"The Hubble Space Telescope should be back in action soon, following a tricky,
remote repair job by NASA. The orbiting observatory went dark in mid-June, with
all astronomical viewing halted. NASA initially suspected a 1980s-era computer
as the source of the problem. But after the backup payload computer also
failed, flight controllers at Maryland’s Goddard Space Flight Center focused on
the science instruments’ bigger and more encompassing command and data unit,
installed by spacewalking astronauts in 2009. Engineers successfully switched
to the backup equipment Thursday, and the crucial payload computer kicked in.
NASA said Friday that science observations should resume quickly, if everything
goes well. A similar switch took place in 2008 after part of the older system
failed.
* Kan mystiska neutroner vara den saknade Svarta Materian?
https://www.scientificamerican.com/article/missing-neutrons-may-lead-a-secret-life-as-dark-matter/
Missing Neutrons May Lead a Secret Life as Dark Matter
This may be the reason experiments can’t agree on the neutron lifetime,
according to a new idea. For more than 10 years researchers have tried two
types of experiments that have yielded conflicting results. Scientists have
struggled to explain the discrepancy, but a new proposal suggests the culprit
may be one of the biggest mysteries of all: dark matter. Scientists are pretty
sure the universe contains more matter than the stuff we can see, and their
best guess is that it takes the form of invisible particles. What if neutrons
are decaying into these invisible particles?
* Den s k perseidmeteorsvärmen dunsar i jordatmosfären nu! Info
https://earthsky.org/astronomy-essentials/everything-you-need-to-know-perseid-meteor-shower/
Från ungefär 11 augusti och några dagar framåt väntas det kulminera.
* S k Fast Radio Burst har upptäckts från en galax rlativt nära, bara 500 milj
ljusår:
https://www.sciencenews.org/article/short-gamma-ray-burst-star-core-collapse-explosion
"A super-short gamma-ray burst defies astronomers’ expectations. The
high-energy flash came from an imploding star, not colliding neutron stars."
* Artemis (NASAs månprogram, tänkt för 2024)
testkörs:https://lifeboat.com/blog/2021/08/nasa-egs-jacobs-power-up-artemis-1-vehicle-to-begin-system-checkouts-in-the-vab
"After stacking the stages of the Space Launch System (SLS) rocket for NASA’s
Artemis 1 mission in June and July, EGS and TOSC powered up the Core Stage for
the first time in the Vehicle Assembly Building (VAB) at the Kennedy Space
Center (KSC) in Florida on August 6. The initial power up was a significant
milestone in pre-launch processing, marking the beginning of the systematic
checkouts of the vehicle and ground systems that will be used for the first
launch on Artemis 1." Tanken är att Artemis skall transportera astronauterna
till månen med SLS, och där skall SpaceX's Starship i en landarkonfiguration
föra ned dem till månytan (men tveksamt om man hinner blir klara till 2024...)
* Men även Kina funderar på månlandning. Man arbetar på en månlandare...
https://spacenews.com/china-is-working-on-a-lander-for-human-moon-missions/ ;
"China’s main spacecraft maker is developing a human landing system for lunar
missions, according to an account of an official academic visit. The brief news
report from Xiamen University School of Aeronautics and Astronautics July 1
(Chinese) names individuals leading projects pertinent to China’s human lunar
landing plans and notably refers to the landing project as a "national
strategy". China is already known to be developing and testing new launch
vehicles and a new-generation spacecraft capable of sending astronauts to the
moon. A lunar landing and ascent system has one of the missing key components
of a human lunar landing architecture."
* SpaceX jobbar vidare mot första testuppskjutningen av Starship med Super
Heavy-lyftraketen, som blir obemannad och vattenlandar i Stilla havet (för
säkerhets skull, normalt landlandar man för att återanvändas):
https://spaceflightnow.com/2021/08/08/fully-stacked-starship-caps-busy-week-at-spacexs-texas-rocket-yard/
"The first full stacking of SpaceX’s Starship launch vehicle, doubling as a
fit check and photo opportunity, will be followed by more outfitting of the
huge rocket ahead of its first orbital test launch. Later Friday, SpaceX
detached the Starship upper stage and rolled it back to a nearby high bay for
additional work to prep for its trip to space. Elon Musk, SpaceX’s founder and
CEO, tweeted Friday that engineers in South Texas will complete work on the
heat shield tiles that cover the stainless steel skin of the rocket’s upper
stage, known simply as Starship. SpaceX will also install thermal protection
materials around the 29 high-power Raptor engines at the base of the rocket’s
first stage, which SpaceX calls the Super Heavy. Together, the rocket stands
394 feet (120 meters) tall. That’s enough to make the Starship the tallest
rocket ever built."
* Mars-rovern Percy tappar bort ett borrprov.
https://spacenews.com/perseverance-first-sampling-attempt-comes-up-empty/ "NASA ;
scientists and engineers are working to understand why the first sampling
attempt by the Mars rover Perseverance failed to collect any material.In a
statement late Aug. 6, NASA said that while Perseverance had drilled a sample
from a rock on the floor of Jezero Crater, that sample did not make it into a
titanium sampling tube that would store the material for eventual return to
Earth. Jessica Samuels, surface mission manager for Perseverance at the Jet
Propulsion Laboratory, said that part of the automated sample collection
process is to insert a probe into the sample tube to measure the volume of the
sample it contains. "The probe did not encounter the expected resistance that
would be there if a sample were inside the tube," she said in the NASA
statement. It’s unclear why the sample didn’t make it into the tube, but for
now project officials believe it is more likely unforeseen properties of the
rock kept it from entering the tube rather than a malfunction of the sampling
system itself."
* SpaceX planerar rymdreklam via satelliter. "SpaceX Launching Satellite to
Display Billboard Ads in Space...SpaceX is reportedly partnering with Canadian
tech startup Geometric Energy Corporation to launch a billboard into orbit
around Earth." https://futurism.com/the-byte/spacex-billboard-ads-space "Samuel ;
Reid, CEO and co-founder of Geometric Energy Corporation (GEC), said that his
company is partnering with SpaceX to launch a small advertisement satellite
into space, according to Insider. The satellite will have a screen on one side
where people and companies can bid to have their logos and advertisements
displayed, along with a "selfie stick" that’ll snap photos of the ads with the
Earth in the background. Thankfully, the system won’t be visible from the
ground - though others have pondered a system like that."
* "Astronomers Spot Unusual, Enormous Rings Around a Black
Hole"https://scitechdaily.com/astronomers-spot-unusual-enormous-rings-around-a-black-hole/
"stronomers spotted an unusual set of rings in X-rays around a black hole with
a companion star. These rings are created by light echoes, a phenomenon similar
to echoes on Earth from sound waves bouncing off hard surfaces. NASA’s Chandra
X-ray Observatory and Neil Gehrels Swift Observatory were used to detect X-rays
ricocheting off dust clouds."
* ESA planerar att skicka sond till månen Europa:
https://lifeboat.com/blog/page/6?s&background=white%5C%27 ""Take a closer look ;
at the complex choreography involved in building NASA’s Europa Clipper as the
mission to explore Jupiter’s moon Europa approaches its 2,024 launch date. The
hardware that makes up NASA’s Europa Clipper spacecraft is rapidly taking
shape, as engineering components and instruments are prepared for delivery to
the main clean room at the agency’s Jet Propulsion Laboratory in Southern
California. In workshops and labs across the country and in Europe, teams are
crafting the complex pieces that make up the whole as mission leaders direct
the elaborate choreography of building a flagship mission."
* Planerna på solenergi nedstrålad från rymdkraftverk är inte döda:
https://lifeboat.com/blog/2021/08/caltechs-new-space-based-solar-project-could-power-our-entire-planet
"It’s the stuff of science fiction: Solar panels in space that beam power
directly to Earth equipping the planet with clean renewable and affordable
energy. Yet, it could soon be reality. Caltech has just received $100 million
in funding for their Space Solar Power Project (SSPP). The project is described
by Caltech as: "Collecting solar power in space and transmitting the energy
wirelessly to Earth through microwaves enables terrestrial power availability
unaffected by weather or time of day. Solar power could be continuously
available anywhere on earth."
* En långfilm på en sekund lovar SpaceX: https://lifeboat.com/blog/page/7 ;
""Starlink" is a satellite internet project of SpaceX. From 2,019 to 2,024
SpaceX plans to use five years to send thousands of satellites needed for
networking into low-Earth orbit to form a "Starlink" network to provide
internet services. Currently, there are 1,650 satellites on the "Starlink"
network. The Speedtest report shows that in the second quarter of this year,
the average download speed of Starlink satellite internet services in the US
market was 97.23 Mbps. This is not far from the average download speed of fixed
broadband in the US, which is 115.22 Mbps."
* "Want to pretend to live on Mars? For a whole year? Apply now."
https://lifeboat.com/blog/2021/08/want-to-pretend-to-live-on-mars-for-a-whole-year-apply-now#more-125978
Men det finns mer rymdnytt att googla fram. Rymden är ju närmast oändligt...och
utveckling går i raketfart!
--Ahrvid
--
ahrvid@xxxxxxxxxxx/Follow @SFJournalen on Twitter for latest skiffy news/Driver
SKRIVA för författande, sf, fantasy, kultur (skriva-request@xxxxxxxxxxxxx subj:
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förnöjelse...jättebra historier i mycket sannolik framtidsmiljö",
http://elib.se eller på bibliotek. /YXSKAFTBUD GE VÅR WCZONMÖ IQ-HJÄLP! ;(DN NoN
00.02.07)
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