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  1. #1551
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    Quote Originally Posted by OhOh View Post
    Thank god for the Russian engines otherwise the ISS would be dead and gone as well.
    For a few years when the space shuttles retired there was a gap with the Russian only sending up Soyuz. But now we have Space X. 12 trips as of August this year.. So I dont think so, as the shuttle basically carried the workload for a long long while.

  2. #1552
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    I hope Space X delivers the next rover to Mars along some astronauts...

  3. #1553
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    Quote Originally Posted by aging one View Post
    Originally Posted by OhOh
    Thank god for the Russian engines otherwise the ISS would be dead and gone as well.
    For a few years when the space shuttles retired there was a gap with the Russian only sending up Soyuz. But now we have Space X. 12 trips as of August this year.. So I dont think so, as the shuttle basically carried the workload for a long long while.
    When the USA had not purchased flights and engines after the downfall of the Soviet Union, the russian space industry would have gone for lack of funding. It was a deliberate policy by the US at the time.

    But the US dependence on russian flights and russian engines has gone on way too long. NASA still needs Astronaut flights from Russia. Even worse, most US military and spy sats need russian engines to lift, to the extent that russian engineers are present on every Atlas 5 flight for the Airforce or NASA. Only very recently those flights can be done by SpaceX with domestic engines as well. But US Congress seems to love Russia. They still give a near monopoly on such flights to ULA. This is only slowly going away.

    Capability to launch US Astronauts to the ISS will only be back next year. US Congress has delayed this by a lot by underfunding the domestic programm. Prefering to buy Russian seats on Soyuz.
    "don't attribute to malice what can be adequately explained by incompetence"

  4. #1554
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    Quote Originally Posted by CSFFan View Post
    I hope Space X delivers the next rover to Mars along some astronauts...
    The most optimistic plans by SpaceX are to send unmanned ships to Mars in 2022, with mining robots and other materials.

    Then send Astronauts in 2024 with habitation, more mining equipment and a major factory for producing water, air for breathing, and a few thousand ton of propellant for the flight back to earth.

    In real life it will likely take a few years longer.

  5. #1555
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    Space News thread-edf0a0b96-jpg
    China’s new radio dish was custom-built to listen for an extraterrestrial message.


    Last january, the Chinese Academy of Sciences invited Liu Cixin, China’s preeminent science-fiction writer, to visit its new state-of-the-art radio dish in the country’s southwest. Almost twice as wide as the dish at America’s Arecibo Observatory, in the Puerto Rican jungle, the new Chinese dish is the largest in the world, if not the universe. Though it is sensitive enough to detect spy satellites even when they’re not broadcasting, its main uses will be scientific, including an unusual one: The dish is Earth’s first flagship observatory custom-built to listen for a message from an extraterrestrial intelligence. If such a sign comes down from the heavens during the next decade, China may well hear it first.

    MORE https://www.theatlantic.com/magazine...ontact/544131/
    Attached Thumbnails Attached Thumbnails Space News thread-edf0a0b96-jpg  

  6. #1556
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    Building Electronics That Can Work on Venus
    While I sometimes have only scorn for NASA manned spaceflight, they are still the best in space science by a long stretch. Venus is a hellhole of heat, pressure and corrosive atmosphere. Any probes landed survived only a very short time before overheating and failing. Building semicondutors, even on a small scale will go a long way to build landers, maybe rovers that can work on Venus for a long time, weeks, maybe months or even years. This signals a real breakthrough in that direction.

    https://www.universetoday.com/137803...an-work-venus/

    Space News thread-atmosphere-venus-png-660x432-jpg


    The weather on Venus is like something out of Dante’s Inferno. The average surface temperature – 737 K (462 °C; 864 °F) – is hot enough to melt lead and the atmospheric pressure is 92 times that of Earth’s at sea level (9.2 MPa). For this reason, very few robotic missions have ever made it to the surface of Venus, and those that have did not last long – ranging from about 20 minutes to just over two hours. Hence why NASA, with an eye to future missions, is looking to create robotic missions and components that can survive inside Venus’ atmosphere for prolonged periods of time. These include the next-generation electronics that researchers from NASA Glenn Research Center (GRC) recently unveiled. These electronics would allow a lander to explore Venus surface for weeks, months, or even years.

    In the past, landers developed by the Soviets and NASA to explore Venus – as part of the Venera and Mariner programs, respectively – relied on standard electronics, which were based on silicon semiconductors. These are simply not capable of operating in the temperature and pressure conditions that exist on the surface of Venus, and therefore required that they have protective casings and cooling systems.


    Naturally, it was only a matter of time before these protections failed and the probes stopped transmitting. The record was achieved by the Soviets with their Venera 13 probe, which transmitted for 127 minutes between its descent and landing. Looking ahead, NASA and other space agencies want to develop probes that can gather as much information as they can on Venus’s atmosphere, surface, and geological history before they time out.

    To do this, a team from NASA’s GRC has been working to develop electronics that rely on silcon carbide (SiC) semiconductors, which would be capable of operating at or above Venus’ temperatures. Recently, the team conducted a demonstration using the world’s first moderately-complex SiC-based microcircuits, which consisted of tens or more transistors in the form of core digital logic circuits and analog operation amplifiers.

    These circuits, which would be used throughout the electronic systems of a future mission, were able to operate for up to 4000 hours at temperatures of 500 °C (932 °F) – effectively demonstrated that they could survive in Venus-like conditions for prolonged periods. These tests took place in the Glenn Extreme Environments Rig (GEER), which simulated Venus’ surface conditions, including both the extreme temperature and high pressure.
    Back in April of 2016, the GRC team tested a SiC 12-transistor ring oscillator using the GEER for a period of 521 hours (21.7 days). During the test, they raised they subjected the circuits to temperatures of up to 460 °C (860 °F), atmospheric pressures of 9.3 MPa and supercritical levels of CO² (and other trace gases). Throughout the entire process, the SiC oscillator showed good stability and kept functioning.

    his test was ended after 21 days due to scheduling reasons, and could have gone on much longer. Nevertheless, the duration constituted a significant world record, being orders of magnitude longer than any other demonstration or mission that has been conducted. Similar tests have shown that ring oscillator circuits can survive for thousands of hours at temperatures of 500 °C (932 °F) in Earth-air ambient conditions.

    Such electronics constitute a major shift for NASA and space exploration, and would enable missions that were previously impossible. NASA’s Science Mission Direction (SMD) plans to incorporate SiC electronics on their Long-Life In-situ Solar System Explorer (LLISSE). A prototype is currently being developed for this low-cost concept, which would provide basic, but highly valuable scientific measures from the surface of Venus for months or longer.
    Other plans to build a survivable Venus explorer include the Automaton Rover for Extreme Environments (AREE), a “steampunk rover” concept that relies on analog components rather than complex electronic systems. Whereas this concepts seeks to do away with electronics entirely to ensure a Venus mission could operate indefinitely, the new SiC electronics would allow more complex rovers to continue operating in extreme conditions.

    Beyond Venus, this new technology could also lead to new classes of probes capable of exploring within gas giants – i.e. Jupiter, Saturn, Uranus and Neptune – where temperature and pressure conditions have been prohibitive in the past. But a probe that relies on a hardened shell and SiC electronic circuits could very well penetrate deep into the interior of these planets and reveal startling new things about their atmospheres and magnetic fields.


    The surface of Mercury could also be accessible to rovers and landers using this new technology – even the day-side, where temperatures reach a high of 700 K (427 °C; 800 °F). Here on Earth, there are plenty of extreme environments that could now be explored with the help of SiC circuits. For example, drones equipped with SiC electronics could monitor deep-sea oil drilling or explore deep into the Earth’s interior.

    There are also commercial applications involving aeronautical engines and industrial processors, where extreme heat or pressure traditionally made electronic monitoring impossible. Now such systems could be made “smart”, where they are capable of monitoring themselves instead of relying on operators or human oversight.
    With extreme circuits and (someday) extreme materials, just about any environment could be explored. Maybe even the interior of a star!
    Attached Thumbnails Attached Thumbnails Space News thread-atmosphere-venus-png-660x432-jpg  

  7. #1557
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    There is a new promotional video of SpaceX McGregor, Tesas test site. Looks all generous and ultra modern. Like they have a NASA budget backing them up. Which they have not. Seems they have not even spent the $1 billion in investor money yet, that they collected over a year ago. But they are driving forward advanced development of many different types of equipment. They do things a lot cheaper than NASA does, often by a factor of 10 cheaper. It still takes money to build all that and to pay a large number of the very best development engineers.

    It i not very long, viewing strongly recommended. I hope it does not disappear, seems it was leaked somewhat prematurely. View in full resolution, if you can it is full 4K.




    An ancient photo, of 2014 or 2013 of the same Texas site. At the time you could drive up to the gate right next to their Falcon 9 test stand. Though that road was closed for actual test firing. They since have acquired or leased a much larger area and access is now closed.

    Space News thread-melkstool-2014-jpg
    Attached Thumbnails Attached Thumbnails Space News thread-melkstool-2014-jpg  

  8. #1558
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    Close new Earth-size world, where year lasts under 10 days

    Astronomers have discovered a close new world about the size of Earth, where a year lasts just under 10 days.
    At a distance of 11 light-years, Ross 128 b is the second-closest planet to be detected yet outside our solar system with surface temperatures potentially similar to ours.
    Ross 128 b is very near its star, thus the short orbit. But it doesn't get broiled because the red dwarf star is cool.
    The star is also quiet, meaning no radiation flare-ups. That's encouraging news for seekers of extraterrestrial life. The planet is believed to border the so-called habitable zone.
    A team led by the University of Grenoble Alps' Xavier Bonfils made the discovery using La Silla Observatory in Chile. The findings were reported Wednesday.

    https://www.9news.com.au/world/2017/11/16/05/27/new-planet-found



  9. #1559
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    Getting overtaken by a rocket on the highway. Facebook video. It is a Falcon 9 second stage. But they drive the huge first stages just as fast.


    https://www.facebook.com/groups/spac...6023509226318/

  10. #1560
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    Russias space agency Roskosmos has suffered another setback.

    Russia has lost contact with a satellite just hours after it was launched into the space.
    The Russian space agency said it has failed to establish contact with the newly launched meteor satellite after it reached orbit.
    The Meteor-M satellite is to monitor weather and climate for Russia’s meteorological agency.
    The Sayuz rocket carrying the satellite was only the second to launch from Russia’s new €2 billion Vostochy Cosmodrome in Siberia near the Chinese border.
    The rocket was also carrying 18 smaller satellites.
    The new spaceport aims to reduce Russia’s dependence on its Cosmodrome located in Kazakstan, which used to be part of the Soviet Union.
    The Russian space agency is monitoring the situation.
    TASS news agency has an article about the launch but has so far not reported the failure. Of course no surprise here.

    It seems the Fregat upper stage failed. Which is more bad news. Fregat had a reasonably good reliability record. The string of failures recently was by another upper stage, the Briz. After lengthy investigations they had hoped they have solved the problems with their upper stages. This year has been hoped to be the first year after a number of years with failures to go smoothly.

  11. #1561
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    Present state on failure cause is interesting. This launch was the first of this stage from the new launch site Wostochny in Russia. All previous launches were from Baikonur in Kasachstan. It was stated they had forgotten to adjust the stage programming for the new launch site. It is embarassing, if true.

    But NASA has done bloopers of similar magnitude. They have lost a Mars lander because they did not convert correctly between US and metric values. One team was calculating in US values, another team took the values as metric. Result, crash on Mars.

  12. #1562
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    The Gimli Glider was the result of jet fuel being converted incorrectly...Canada had switched to the metric system and this new Boeing 767 ran out of fuel...

    Fooking captain had only one chance to land it on a remote Manitoba runway...

  13. #1563
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    What a splendid piece of engineering.


    Voyager 1 spacecraft thrusters fired up for first time since 1980

    By Alaa Elassar and Ralph Ellis, CNN
    Updated 11:39 PM ET, Fri December 1, 2017


    It's a good idea to have a backup plan, especially in interstellar space.

    NASA scientists needed to reorient the 40-year-old Voyager 1 -- the space agency's farthest spacecraft -- so its antenna would point toward Earth, 13 billion miles away. But the "attitude control thrusters," the first option to make the spacecraft turn in space, have been wearing out.

    So NASA searched for a Plan B, eventually deciding to try using four "trajectory correction maneuver" (TCM) thrusters, located on the back side of Voyager 1. But those thrusters had not been used in 37 years. NASA wasn't sure they'd work.

    Tuesday, engineers fired up the thrusters and waited eagerly to find out whether the plan was successful. They got their answer 19 hours and 35 minutes later, the time it took for the results to reach Earth: The set of four thrusters worked perfectly. The spacecraft turned and the mood at NASA shifted to jubilation.

    "The Voyager team got more excited each time with each milestone in the thruster test. The mood was one of relief, joy and incredulity after witnessing these well-rested thrusters pick up the baton as if no time had passed at all," said Todd Barber,
    a propulsion engineer at NASA's Jet Propulsion Laboratory in Pasadena, California.

    "With these thrusters that are still functional after 37 years without use, we will be able to extend the life of the Voyager 1 spacecraft by two to three years," said Suzanne Dodd, project manager for Voyager at the Jet Propulsion Laboratory.

    Launched 40 years ago



    In 1977, the twin spacecrafts Voyager 1 and 2 were launched, 16 days apart. In September 2013, NASA's Voyager 1 spacecraft became the first human-made object to leave the solar system, entering interstellar space, the environment between the stars.

    Voyager 2 lags behind, but according to NASA, the spacecraft is following the lead of the first Voyager and is on course to enter interstellar space in the coming years. The pair are still exploring the outer solar system and continue to communicate with Earth daily.


    The Voyager missions discovered the first active volcanoes beyond Earth, at Jupiter's moon Io, and hints of a subsurface ocean on Jupiter's moon Europa. They encountered Saturn's largest moon, Titan, where data showed a thick Earth-like atmosphere; found the icy moon Miranda at Uranus; and spotted icy-cold geysers on Neptune's moon Triton.

    The significance of Voyager is the vast amount of knowledge of outer space it has provided and the interest in further exploration. That interest has resulted in the Galileo mission to Jupiter and the Cassini mission to Saturn, as well as the discovery of three new moons around Saturn using Earth-based instruments.

    The future of Voyager



    Because of the success in the attempt to test Voyager 1's TCM thrusters, NASA plans to test the ones on Voyager 2. The need to use them is not as immediate, however, because the primary thrusters of Voyager 2 have not significantly degraded.

    It is expected that in the year 40,272,
    Voyager 1 will come within 1.7 light years of an obscure star in the constellation Ursa Minor (the Little Bear or Little Dipper) and in about 40,000 years, Voyager 2 will come within about 1.7 light years of a star called Ross 248, a small star in the constellation of Andromeda.


    CNN's Andrea Diaz contributed to this report.


  14. #1564
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    Quote Originally Posted by harrybarracuda View Post
    What a splendid piece of engineering.
    I emphatically agree.

  15. #1565
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    Its literally unbelievable. 37 years on and 13.1 billion miles away.

    Talk about reliable! Built in the 1970’s, launched in 1977, and last fired in 1980. Way to go.

  16. #1566
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    Here's another confirmation that Elon Musk is stark crazy. The kind of crazy that gets things done.

    Probably in January next year SpaceX will finally launch the Falcon Heavy rocket which will be the biggest, most capable rocket presently flying.

    Space News thread-21048044876_bae2435d96_k-jpg

    Elon Musk now announced the payload that will launch on this demo flight. He had announced earlier that it will be the silliest thing they can think of.

    Payload will be my midnight cherry Tesla Roadster playing Space Oddity. Destination is Mars orbit. Will be in deep space for a billion years or so if it doesn’t blow up on ascent.
    This car or one similar. BTW that car accelerates under its own power from 0-100km/h in 1.9 seconds and can drive 1000km on one battery charge at highway speed.

    Edit: It is not the new roadster. It is going to be the older model, maybe even one Elon Musk has been driving for a while.


    Space News thread-maxresdefault-jpg

    Playing Space Oddity, maybe better known as "Ground Control to Major Tom"



    There is major confusion about the Mars orbit part. Lots of speculation if he really means orbit and how to achieve it.
    Attached Thumbnails Attached Thumbnails Space News thread-21048044876_bae2435d96_k-jpg   Space News thread-maxresdefault-jpg  
    Last edited by Takeovers; 02-12-2017 at 03:35 PM.

  17. #1567
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    A followup on harrybarracudas post on voyager.

    A video just published by Caltechs JPL, the Jet Propulsion Laboratory.



    Amazing how many objects of our solar system this probe visited. If memory serves me correctly they were under enormous pressure to build it in time because the constellation that allowed visiting so many planets was unique and could only be done in a small launch window.

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    The Soyuz-2 rocket carrying Russia's Meteor-M 2-1 weather satellite and other equipment lifts off from the launch pad at the Vostochny cosmodrome outside the city of Uglegorsk, about 200 kilometers from the city of Blagoveshchensk in the eastern Amur region of Russia on November 28, 2017


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    South Korea's Hyunmoo II missile is fired during an exercise at an undefined location on the east coast of South Korea on November 29, 2017


  20. #1570
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    An informative and entertaining documentary about the two Voyager missions:
    |
    https://eztv.ag/ep/463998/bbc-the-fa...-x264-aac-mkv/

  21. #1571
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    Quote Originally Posted by bobo746 View Post
    The Soyuz-2 rocket carrying Russia's Meteor-M 2-1 weather satellite and other equipment lifts off from the launch pad at the Vostochny cosmodrome outside the city of Uglegorsk, about 200 kilometers from the city of Blagoveshchensk in the eastern Amur region of Russia on November 28, 2017
    These launch photos are always impressive. I particular like the launch pad design of the Soyuz. BTW this is the launch I commented on in post 1560. The upper stage failed and the payloads were lost. Though as usual the first stage, the cornerstone of Soyuz performed perfectly.

  22. #1572
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    Well it seems like Musk and Boeing are in a race to Mars....

    https://www.indy100.com/article/elon...llenge-8101831




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    Twitterbugs...

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    Oumuamua: Why scientists are scanning an object flying past Earth for proof of alien

    Scientists looking for alien life have sparked excitement after announcing they will scan an object flying past Earth to see if it contains alien technology.
    If it does, it would rank among the biggest and most unexpected scientific finds ever. And even if it's not an alien craft, there is something very strange about the object.
    We should only have to wait for a few days to find out more about the visitor, known as Oumuamua. Here's how we plan to do it, and why.
    What's so strange about this object?

    Even before suggestions of something more intentional came about, Oumuamua already appeared very strange.


    It's far longer and thinner than we'd normally expect – it's hundreds of metres long, but only a tenth as wide. It seems to be travelling on an unusual path, not getting sucked in by our sun's gravity but progressing on a path that will see it fly out of the other side of the solar system.
    What's more, it's the first visitor to our solar system that we know to have come from outside. That alone – combined with the other unusual characteristics – make it an unprecedented, unexplained find, whatever it actually turns out to be.
    Why might it be an alien spacecraft?

    That's the suggestion of Breakthrough Listen, a pioneering and expensive project to find life elsewhere in the universe. The organisation has stressed that it's most likely that it's a natural object – but that it's possible it isn't, and there's no proof either way.

    • READ MORE


    Huge, mysterious object flying past Earth might be an alien spacecraft



    The strangeness of the object has led to suggestions that it would make sense if it was an artifact of an alien civilisation. In particular, its long shape fits in with experts' opinion of the kind of crafts you'd build for long-distance space travel – you get plenty of space, but a relatively low area that will be at risk of being hit by dust or debris as it flies along.
    What are they going to do to find out?

    In short, listen to it. In very intensive, innovative ways.
    Beginning on Wednesday at 8pm UK time, the Green Bank Telescope will be pointed at the object. It will scan it for ten hours, listening in at various radio bands to see if anything is being sent out by it.
    Since it's so close by, if anything is coming out then it will almost certainly be heard. If the object has a transmitter as powerful as a cellphone, we'd get something back in less than a minute.
    We should know within a few days whether it's been successful, either way.
    What if it's not a spacecraft?

    It'll still be a useful exercise in testing our best hopes for actually finding aliens, when they come. We'll be using the same techniques that will be used if we meet another potential spacecraft, and show that they'll work in the future.


    “‘Oumuamua’s presence within our solar system affords Breakthrough Listen an opportunity to reach unprecedented sensitivities to possible artificial transmitters and demonstrate our ability to track nearby, fast-moving objects,” said Breakthough Listen's Andrew Siemion, director of Berkeley SETI Research Center. “Whether this object turns out to be artificial or natural, it’s a great target for Listen.”


    Anything that is discovered during the monitoring will also feed into the general work that scientists around the world are doing on the strange object. Scientists will be listening out for other information about the object, including whether it contains water or ice and what the gaseous envelope that surrounds it might be made of.
    What else could it be?

    Whatever happened to the object to form it and bring it to this universe was very unusual. But that doesn't necessarily mean it was alien.


    Other explanations include the possibility that the rock was a shard of a shredded planet. One SETI scientist had proposed that it was perhaps formed when some large planet got too close to its sun and was ripped to bits – and that since then it has been flying through the universe, until it reached us.

    http://www.independent.co.uk/news/sc...-a8105396.html

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