Space News and Discussions

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Time_Traveller
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weatheriscool wrote: Tue Jan 04, 2022 8:39 pm China and Russia team up to establish joint moon base --- Planned Sino-Russian joint moon base aims to overtake the US in reaping lunar strategic benefits
asiatimes.com ^ | January 3, 2022 | Gabriel Honrada
https://asiatimes.com/2022/01/china-and ... moon-base/
China and Russia plan to set up a joint moon base by 2027, eight years earlier than originally planned. The joint moon base, called the International Lunar Research Station (ILRS), will be a complex of experimental research facilities designed for multiple scientific activities, such as moon exploration, moon-based observation, research experiments and technology verification.

China is planning to launch the Chang’e 8 lunar exploration mission as the first step in establishing the ILRS. The mission is expected to test technology for using local resources and manufacturing with 3D printing.

Presently, China’s lunar presence includes the Chang’e 4 lander and the Yutu 2 rover, whose arrival in 2019 marked humanity’s first landings on the dark side of the moon. Both lunar craft are performing scientific experiments, with Chang’e 4 conducting a lunar biosphere experiment to see how silkworms, potatoes and Arabidopsis (a small flowering plant) seeds grow in lunar gravity, while the Yutu 2 rover is exploring the Von Kármán crater.

China and Russia’s joint moon base plans can be seen as a response to their exclusion from the US Artemis Accords, which aims to establish principles, guidelines and best practices for space exploration for the US and its partners. Its goal is to advance the Artemis Program, the name for US efforts to place itself as the first nation to establish a long-term lunar presence.

China is barred from participating in joint projects with the US in space by the Wolf Amendment, a 2011 measure prohibiting NASA from cooperating with China without special approval from Congress.
More on this: -

China wants to send plants, microbes and lunar resource experiments to the moon in 2028
published about 20 hours ago

An upcoming Chinese lunar mission will carry a small ecosystem and other payloads to test using lunar resources later this decade.

China's Chang'e 8 mission is a precursor mission for a moon base, named the International Lunar Research Station (ILRS) that the country wants to build with partners in the 2030s. Chang'e 8 will test key technologies needed to make the ILRS sustainable.

The China National Space Administration (CNSA) revealed details of Chang'e 8's planned payloads in a solicitation for domestic expressions of interest in developing the payloads released on Feb. 7. Notably, these include in-situ resource utilization (ISRU) and terrestrial ecosystem experiments.

The ISRU payload will be designed to melt lunar soil using solar energy. This material will then be used to manufacture components and measure their mechanical and thermal properties. Previous reporting suggests the plan is to produce bricks, which would then be capable of being assembled by robots.

The ecosystem experiment is described as a two-chain terrestrial ecosystem containing plants and microbes. The controlled, sealed environment aims to explore the viability of biological utilization of lunar soil resources and how they potentially support life-support technology — such as food and oxygen production — for a crewed lunar base. The 2019 Chang'e 4 mission notably saw a cotton seed sprout in a container on the far side of the moon.
https://www.space.com/china-microbes-pl ... -moon-2028
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Is Kennedy Space Center ready to withstand the power of Starship?
By David Szondy
February 18, 2024
SpaceX plans to regularly launch its monster Starship booster from the Kennedy Space Center in Florida, and to do so it will refurbish an Apollo-era launch site and also construct a new one, according to a new environmental impact statement.

The Starship booster has been in the news off and on in recent years – not the least for the fiery end of its first two attempts to reach orbit. However, if familiarity breeds contempt, it also tends to kill a sense of scale. SpaceX's new flagship rocket isn't just a display of new technology or cool retro lines; it is an absolute monster of a space vehicle.

To put it directly, Starship is the largest, most powerful rocket ever to fly. The fully stacked first and second stages stand 394 ft (120 m) where the Apollo Saturn V that sent the first astronauts to the Moon is only 363 ft (111 m). Moreover, Starship's 33 Raptor engines punch out over 16 million pounds of thrust, or twice that of the Saturn V.

It even towers over NASA's Space Launch System (SLS), which stands at 371 ft (114 m) and still has twice the thrust. As to payload, Starship can put 150 tonnes into orbit with both stages returning to Earth for reuse. The SLS can only handle 95 tonnes in its current configuration and is a one-and-done booster.
https://newatlas.com/space/kennedy-spac ... ip-rocket/
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The Solar System's Missing Planet Has Only One Place Left to Hide

https://www.sciencealert.com/the-solar- ... ft-to-hide
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China launches classified military satellite towards geostationary belt
February 23, 2024

HELSINKI — China launched the TJS-11classified satellite early Friday as the country continues to build its geostationary capabilities.

A Long March 5 lifted off from Wenchang Satellite Launch Center on Hainan island at 6:30 a.m. Eastern (1130 UTC), Feb. 23.

The China Aerospace Science and Technology Corp., (CASC), announced launch success just under an hour after launch. The announcement also provided the first official statement on the payload: TJS-11 (Tongxin Jishu Shiyan-11). The satellite is described as being mainly used to carry out multi-band, high-speed satellite communication technology verification.

Neither CASC nor Chinese state media provided further details on the satellite which belongs to a series of classified geosynchronous satellites for the Chinese military. TJS satellites are thought by observers to serve a range of purposes including early warning, signals intelligence and more.

Buildup to the mission was shrouded in secrecy, despite the open location of the coastal launch. There were no official reports of the rollout of the rocket, in contrast to previous missions. Notably it is the shortest time between launches of the Long March 5, at 70 days since the launch of Yaogan-41. Like the Yaogan-41 launch, the TJS-11 mission used an elongated 18.5-meter-long, 5.2-meter-diameter payload fairing. Standard fairings are 12.3 meters long.
https://spacenews.com/china-launches-cl ... nary-belt/
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Japans Will Launch Mission to Mars Moons – Phobos and Deimos in 2024 With Samples Returned in 2029

February 24, 2024 by Brian Wang
https://www.nextbigfuture.com/2024/02/j ... -2029.html
Japan’s space agency (JAXA) is sending a mission to travel to Mars which will survey the Red Planet’s two moons, Phobos and Deimos. The spacecraft will explore both moons and collect a sample of Phobos and bring it to Earth. This will be a major dedicated mission to Phobos and Deimos. MMX is scheduled to be launched in 2024, and will return to Earth five years later.

Phobos has been photographed in close-up by several spacecraft whose primary mission has been to photograph Mars. The first was Mariner 7 in 1969, followed by Mariner 9 in 1971, Viking 1 in 1977, Phobos 2 in 1989, Mars Global Surveyor in 1998 and 2003, Mars Express in 2004, 2008, 2010 and 2019, and Mars Reconnaissance Orbiter in 2007 and 2008. On 25 August 2005, the Spirit rover, with an excess of energy due to wind blowing dust off of its solar panels, took several short-exposure photographs of the night sky from the surface of Mars, and was able to successfully photograph both Phobos and Deimos.
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weatheriscool
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firestar464
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https://phys.org/news/2024-03-james-web ... tures.html

James Webb Space Telescope captures the end of planet formation

Image
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Webb and Hubble telescopes affirm the universe's expansion rate, but the puzzle persists
https://phys.org/news/2024-03-webb-hubb ... verse.html
by Bethany Downer, Ninja Menning, European Space Agency
The rate at which the universe is expanding, known as the Hubble constant, is one of the fundamental parameters for understanding the evolution and ultimate fate of the cosmos.

However, a persistent difference, called the Hubble Tension, is seen between the value of the constant measured with a wide range of independent distance indicators and its value predicted from the afterglow of the Big Bang. The NASA/ESA/CSA James Webb Space Telescope has confirmed that the Hubble Space Telescope's keen eye was right all along, erasing any lingering doubt about Hubble's measurements.

One of the scientific justifications for building the NASA/ESA Hubble Space Telescope was to use its observing power to provide an exact value for the expansion rate of the universe. Prior to Hubble's launch in 1990, observations from ground-based telescopes yielded huge uncertainties. Depending on the values deduced for the expansion rate, the universe could be anywhere between 10 and 20 billion years old.
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https://phys.org/news/2024-03-webb-hubb ... verse.html

Webb and Hubble telescopes affirm the universe's expansion rate, but the puzzle persists
weatheriscool
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Hypersonic rotating detonation engine in sustained test burn
By David Szondy
March 11, 2024


https://newatlas.com/military/rotating- ... on-engine/
A revolutionary alternative to conventional rockets that uses controlled explosions has completed its first long-duration engine test as part of Venus Aerospace's partnership with DARPA to develop a Rotating Detonation Rocket Engine (RDRE).

The big player in the aerospace field since the 1940s has been the chemical rocket engine. These powerhouses are currently the only way to get beyond the Earth's atmosphere and it's a job they do very well, indeed. Liquid-fueled rockets, sometimes aided by their solid counterparts, put the first satellites into orbit and the first astronauts on the Moon. They sent robotic probes to each of the planets with a few moons, asteroids, and comets thrown in for good measure.
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SpaceX poised for third launch test of Starship megarocket

https://phys.org/news/2024-03-spacex-po ... ocket.html
by Chandan KHANNA
People gather as SpaceX Starship spacecraft prototype is transported from the launch site ahead of the SpaceX Starship third flight test from Starbase in Boca Chica, Texas.

SpaceX plans on Thursday to attempt another launch of Starship, the world's most powerful rocket that is vital to NASA's plans for landing astronauts on the moon later this decade—and Elon Musk's hopes of eventually colonizing Mars.

Two previous attempts have ended in spectacular explosions, though that's not necessarily a bad thing: the company has adopted a rapid trial-and-error approach in order to accelerate development, and the strategy has brought success in the past.

Blastoff from the company's launch site in southeast Texas can occur beginning at 7:00 am local time (1200 GMT), after the Federal Aviation Administration (FAA) gave its go-ahead on Wednesday.

SpaceX will run a webcast on its website starting thirty minutes earlier.

When the two stages of Starship are combined, the rocket stands 397 feet (121 meters) tall—beating the Statue of Liberty by a comfortable 90 feet.
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SpaceX Starship launches successfully, notches new milestones on way around Earth

Source: CNBC

Published Thu, Mar 14 2024 8:45 AM EDT Updated 3 Min Ago
SpaceX launched the third test flight of its Starship rocket on Thursday and reached space, as the company looks to push development of the mammoth vehicle past new milestones.

Elon Musk’s company launched Starship at about 9:25 a.m. ET from its Starbase facility near Boca Chica, Texas.

The rocket has now flown further than previous tests, with the flight expected to take an hour before it ends in an attempted splashdown in the Indian Ocean.

SpaceX has flown the full Starship rocket system on two tests in the past year, with launches in April and November. Both previous launches had progressive but explosive results: While each of the rockets flew for a few minutes, with the most recent reaching space, both vehicles were ultimately destroyed due to problems.
Read more: https://www.cnbc.com/2024/03/14/spacex- ... aunch.html
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Explosion Cuts Short Planned Commercial Satellite Launch
by Tetsuya Ishikura
March 13, 2024

Introduction:
(Asahi Shimbun) A massive explosion only seconds after liftoff at 11:01 a.m. on March 13 marked the spectacular failure of the first satellite launch by a private company.

Tokyo-based Space One Co. had planned to place a satellite in orbit with the launch from Space Port Kii in Kushimoto, Wakayama Prefecture, of its first Kairos rocket.

Space One officials held a news conference later that day and explained the explosion was intentionally triggered by a computer that detected problems with the rocket.

However, they added that further analysis of the data would be needed to determine exactly what those problems were.

The liftoff was rescheduled after one set for March 9 had to be postponed because boats had entered waters that had been designated off-limits for the launch.
Read more here: https://www.asahi.com/ajw/articles/15197016

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weatheriscool
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China Developing Giant Magnetic Launcher for Hypersonic Space Planes
March 17, 2024 by Brian Wang
China Aerospace Science and Industry Corporation’s (CASIC) plans to build a giant magnetic launcher to propel airplanes up to speeds where they can start hypersonic scramjet engines.

CASIC has built a 2000 meter long low-vacuum track high-speed maglev test facility in the industrial heartland of Datong, Shanxi province. This is able to accelerate heavy object to speeds approaching 1,000km/h (620mph)– close to the speed of sound. China wants to launch a hypersonic space plane weighing 50 tonnes and measuring longer than a Boeing 737. It is part of the Tengyun project unveiled in 2016.

In the coming years, the length of the test line will be extended to achieve a maximum operating speed of 5,000km/h (3100 mph).

If the US magnetic launcher uses 121 megajoules to accelerate to a plane to 150 mph then the current CASIC system would need about 2000 megajoules to get a full sized plane to 620 mph. I would expect they are accelerating one ton or less and using about 100 megajoules or less.

Accelerating to five times the speed (3100 mph) would need 25 times more power for the same sized object. This would mean around 50,000 megajoules.

A regular gigawatt reactor would be making a gigajoule each second. However, the power could be stored in massive capacitors or batteries. A nuclear reactor could charge up massive amounts of capacitors for 50 seconds which would then be discharged for the launch.
https://www.nextbigfuture.com/2024/03/c ... lanes.html
firestar464
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https://www.msn.com/en-us/news/technolo ... r-BB1iCTcK

NASA's New Horizons Discovered a Large Surprise in The Kuiper Belt

https://www.msn.com/en-us/news/technolo ... r-BB1k4sL1

also:

Physicist Claims Universe Has No Dark Matter And Is 27 Billion Years Old

(Correct me if I'm wrong, but didn't JWST or something detect dark matter or something?)
weatheriscool
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China is building a railgun that can hurl crewed spacecraft into orbit
By David Szondy
March 20, 2024
https://newatlas.com/space/china-railgu ... aft-orbit/
Rockets being passé, China is working on using an electromagnetic railgun to launch crewed spacecraft the size of a Boeing 737, weighing 50 tonnes, into orbit. This remarkably ambitious project is even more ambitious than it seems at first glance.

Call it a railgun, a catapult, or a mass driver, the idea of replacing rockets with an electromagnetic accelerator is a very attractive option. Instead of lifting off on chemical rockets that have to carry fuel and fuel to lift the fuel and fuel to lift the fuel and the additional fuel, it makes more sense to keep as much of the launching system on the ground while leaving the vehicle as light as possible.

The principle behind such a space railgun is simple, but the details are surprisingly complex and the numbers involved very quickly become daunting. If China can carry off using such a system to launch a spaceplane as part of its Tengyun project that began in 2016, it would be one of history's major engineering achievements.

According to the Chinese official media, the plan is to build an electromagnetic launch track that would be able to accelerate a spaceplane to a speed of Mach 1.6 or even as high as Mach 5. Once airborne, the vehicle would then fire its onboard rocket engines and continue to accelerate to orbital velocity.
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Solar eclipse 2024: Millions in North America will view what promises to be a blockbuster
6 hours ago

How lucky can the residents of Carbondale, Illinois, be?

Celestial mechanics says any one spot on the Earth's surface should experience a total solar eclipse only once every 375 years, on average.

The 30,000 residents of the Midwestern city will probably chuckle at that statistic because they are about to witness the Moon block out the Sun's disc for the second time in just seven years.

And what's more, the upcoming 8 April eclipse will be even better than the one they got to see in 2017. The sky will go pitch black for 4 minutes and 9 seconds, nearly double what happened last time.

As many as 200,000 people are expected to flood prime viewing locations in southern Illinois for The Great American Eclipse, Part II. But this will be true, also, all along the eclipse path, from Mexico's Pacific coast to Canada's Atlantic seaboard. The upcoming event is set to be a blockbuster.
https://www.bbc.co.uk/news/science-environment-68597945
"We all have our time machines, don't we. Those that take us back are memories...And those that carry us forward, are dreams."

-H.G Wells.
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