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      SpaceX has now landed more boosters than most other rockets ever launch

      news.movim.eu / ArsTechnica · Yesterday - 15:00

    SpaceX landed its 300th booster on Tuesday.

    Enlarge / SpaceX landed its 300th booster on Tuesday. (credit: SpaceX webcast)

    SpaceX launches have become extremely routine. On Tuesday evening, SpaceX launched its 42nd rocket of the year, carrying yet another passel of Starlink satellites into orbit. Chances are, you didn't even notice.

    All the same, the cumulative numbers are mind-boggling. SpaceX is now launching at a rate of one mission every 2.7 days this year. Consider that, from the mid-1980s through the 2010s, the record for the total number of launches worldwide in any given year was 129. This year alone, SpaceX is on pace for between 130 and 140 total launches.

    But with Tuesday evening's mission, there was a singular number that stood out: 300. The Falcon family, which includes the Falcon 9 and Falcon Heavy boosters, recorded its 300th successful first-stage landing.

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      Recoding Voyager 1—NASA’s interstellar explorer is finally making sense again

      news.movim.eu / ArsTechnica · 2 days ago - 17:56

    Engineers have partially restored a 1970s-era computer on NASA's Voyager 1 spacecraft after five months of long-distance troubleshooting, building confidence that humanity's first interstellar probe can eventually resume normal operations.

    Several dozen scientists and engineers gathered Saturday in a conference room at NASA's Jet Propulsion Laboratory, or connected virtually, to wait for a new signal from Voyager 1. The ground team sent a command up to Voyager 1 on Thursday to recode part of the memory of the spacecraft's Flight Data Subsystem (FDS) , one of the probe's three computers.

    “In the minutes leading up to when we were going to see a signal, you could have heard a pin drop in the room," said Linda Spilker, project scientist for NASA's two Voyager spacecraft at JPL. "It was quiet. People were looking very serious. They were looking at their computer screens. Each of the subsystem (engineers) had pages up that they were looking at, to watch as they would be populated."

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      Daily Telescope: The ambiguously galactic duo

      news.movim.eu / ArsTechnica · 2 days ago - 11:30

    This image from the NASA/ESA Hubble Space Telescope features NGC 3783, a bright barred spiral galaxy about 130 million light-years from Earth.

    Enlarge / This image from the NASA/ESA Hubble Space Telescope features NGC 3783, a bright barred spiral galaxy about 130 million light-years from Earth. (credit: ESA/Hubble & NASA, M. C. Bentz, D. J. V. Rosario)

    Welcome to the Daily Telescope . There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We'll let other publications offer you a daily horoscope. At Ars Technica, we're going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.

    Good morning. It's April 23, and today's photo comes from the Hubble Space Telescope. It features a lovely, barred spiral galaxy and a photobombing star on the right-hand side of the image.

    The galaxy is NGC 3783, which can be found 130 million light years away from Earth. Astronomical distances are all mind-boggling, but to try and put things into perspective, that means this galaxy is about 1,000 times the distance further from us compared to the diameter of our own Milky Way Galaxy. So it's far, far away.

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      NASA officially greenlights $3.35 billion mission to Saturn’s moon Titan

      news.movim.eu / ArsTechnica · 3 days ago - 19:53

    Artist's illustration of Dragonfly soaring over the dunes of Titan.

    Enlarge / Artist's illustration of Dragonfly soaring over the dunes of Titan. (credit: NASA/Johns Hopkins APL/Steve Gribben )

    NASA has formally approved the robotic Dragonfly mission for full development, committing to a revolutionary project to explore Saturn's largest moon with a quadcopter drone.

    Agency officials announced the outcome of Dragonfly's confirmation review last week. This review is a checkpoint in the lifetime of most NASA projects and marks the moment when the agency formally commits to the final design, construction, and launch of a space mission. The outcome of each mission's confirmation review typically establishes a budgetary and schedule commitment.

    “Dragonfly is a spectacular science mission with broad community interest, and we are excited to take the next steps on this mission," said Nicky Fox, associate administrator of NASA's science mission directorate. "Exploring Titan will push the boundaries of what we can do with rotorcraft outside of Earth.”

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      pubsub.blastersklan.com / slashdot · 4 days ago - 07:53 edit · 1 minute

    Several "high-profile astronomers" will meet at London's Royal Society (the UK's national academy of sciences), "to question some of the most fundamental aspects of our understanding of the universe.reports Futurism: As The Guardian reports, the luminaries of cosmology will be re-examining some basic assumptions about the universe — right down to the over-a-century-old theory that it's expanding at a constant rate. "We are, in cosmology, using a model that was first formulated in 1922," coorganizer and Oxford cosmologist Subir Sarkar told the newspaper, in an apparent reference to the year Russian astronomer Alexander Friedmann outlined the possibility of cosmic expansion based on Einstein's general theory of relativity. "We have great data, but the theoretical basis is past its sell-by date," he added. "More and more people are saying the same thing and these are respected astronomers." A number of researchers have found evidence that the universe may be expanding more quickly in some areas compared to others, raising the tantalizing possibility that megastructures could be influencing the universe's growth in significant ways. Sarkar and his colleagues, for instance, are suggesting that the universe is "lopsided" after studying over a million quasars, which are the active nuclei of galaxies where gas and dust are being gobbled up by a supermassive black hole. The article notes that another theory is that the so-called cosmological constant that's been used for decades "actually varies across space." Thanks to long-time Slashdot reader schwit1 for sharing the article.

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    Some Astronomers Will Re-Examine a 102-Year-Old Theory About the Universe's Expansion
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      pubsub.blastersklan.com / slashdot · 4 days ago - 03:48 edit · 2 minutes

    A large-screen IMAX documentary about the James Webb Space Telescope "has just opened in 300 theaters across North America," write an anonymous Slashdot reader, noting that it's playing for one week only. "And it gets a rave review in Forbes." Imagine venturing to the beginning of time and space, exploring cosmic landscapes so vast and beautiful that they've remained unseen by human eyes until now. This is the promise of "Deep Sky," an extraordinary IMAX presentation that brings the universe's awe-inspiring mysteries closer than ever before. Directed by the Oscar®-nominated filmmaker Nathaniel Kahn and narrated by the equally acclaimed actress Michelle Williams, "Deep Sky" is a monumental journey through the cosmos, powered by the groundbreaking images captured by NASA's Webb Telescope... "Deep Sky" is more than a documentary about a space telescope; it's an immersive experience that invites audiences to see the universe as never before. Through the power of IMAX, viewers are transported across 13 billion years of cosmic history, to the very edges of the observable universe. Here, in stunning clarity, we witness the birth of stars, the formation of galaxies, and the eerie beauty of exoplanets — planets that orbit stars beyond our own Sun. These images, beamed back to Earth by JWST, reveal the universe's vast beauty on a scale that seems only the giant IMAX screen can begin to convey... What makes "Deep Sky" particularly captivating is its ability to render the incomprehensible beauty and scale of the universe accessible. The IMAX® experience, known for its breathtaking visuals and sound, serves as the perfect medium to convey the majesty of the cosmos. The review says the film celebrates the achieve of thousands of people working across decades, "aiming to answer some of humanity's oldest questions: Where did we come from? How did the universe begin? Are we alone in the vastness of space?" The reviewer also spoke to JWST telescope scientist Matt Mountain — in another article applauding the film for "encapsulating the grandeur of space exploration on the IMAX canvas." In "Deep Sky," viewers are taken on a journey from the telescope's construction to its deployment and early operational phases. The documentary highlights the international collaboration and engineering marvels behind the JWST, featuring insights from key scientists and engineers who brought the telescope to life. The film aims to rekindle a sense of wonder about the universe and our place within it, emphasizing the human desire to explore and understand the cosmos.

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    JWST Gets an IMAX Documentary: 'Deep Sky'
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      pubsub.blastersklan.com / slashdot · 5 days ago - 22:33 edit · 2 minutes

    Longtime Slashdot reader garyisabusyguy shares a report from The Debrief: Dr. Charles Buhler, a NASA engineer and the co-founder of Exodus Propulsion Technologies, has revealed that his company's propellantless propulsion drive, which appears to defy the known laws of physics, has produced enough thrust to counteract Earth's gravity. "The most important message to convey to the public is that a major discovery occurred," Buhler told The Debrief. "This discovery of a New Force is fundamental in that electric fields alone can generate a sustainable force onto an object and allow center-of-mass translation of said object without expelling mass." "There are rules that include conservation of energy, but if done correctly, one can generate forces unlike anything humankind has done before," Buhler added. "It will be this force that we will use to propel objects for the next 1,000 years until the next thing comes." To document his team's discovery as well as the process behind their work, which Dr. Buhler cautions is in no way affiliated with NASA or the U.S. Government, the outwardly amiable researcher presented his findings at a recent Alternative Propulsion Energy Conference (APEC). Filled with both highly-credentialed career engineers and propulsion hobbyists, APEC is an organization The Debrief once referred to as the World's Most Exclusive (And Strange) Anti-Gravity Club. In conjunction with that presentation, "The Discovery of Propellantless Propulsion: The Direct Conversion of Electrical Energy into Physical Thrust," Dr. Buhler also sat down with APEC co-founder and moderator Tim Ventura to explain how his past in electrostatics, which is his primary area of expertise, ended up being a key component of his discovery of this new force. [...] Up next, Buhler says his team is seeking funding to test their devices in space to better understand the force at work. "We're hoping to do some demos," said Buhler. "Some space demos. That's what we're trying to get some funding to do. I think that would be a great way to show off the technology." Besides proving once and for all that the force they are seeing is real, the accomplished engineer believes that such tests could encourage other scientists to search for an explanation of what exactly it is they are seeing. "I think it's a good opportunity for people to run these tests, look at them, watch them go in space, watch it move in space, and then say, "what does it imply? What are the implications?'" Until that time, Buhler says he believes his work proves that the force they are seeing is "fundamental" and that understanding it is the next logical step. "You can't deny this," he told Ventura. "There's not a lot to this. You're just charging up Teflon, copper tape, and foam, and you have this thrust." So, while his team believes their experiments speak for themselves, the veteran scientist says he also believes it is the job of science to analyze and understand this discovery. If successful, he thinks it may even address some of the harder questions in science, including the nature of dark energy or even space/time itself. "It's easy to make these things," he said, "so it's a tool for the scientific community to use to try to explore those hard questions." If there are companies or individuals interested in working with Exodus Propulsion Technologies, Buhler asks that they reach out via their LinkedIn page.

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    NASA Veteran Behind Propellantless Propulsion Drive Announces Major Discovery
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      NASA may alter Artemis III to have Starship and Orion dock in low-Earth orbit

      news.movim.eu / ArsTechnica · 6 days ago - 15:20

    This image taken by NASA's Orion spacecraft shows its view just before the vehicle flew behind the Moon in 2022.

    Enlarge / This image taken by NASA's Orion spacecraft shows its view just before the vehicle flew behind the Moon in 2022. (credit: NASA)

    Although NASA is unlikely to speak about it publicly any time soon, the space agency is privately considering modifications to its Artemis plan to land astronauts on the surface of the Moon later this decade.

    Multiple sources have confirmed that NASA is studying alternatives to the planned Artemis III landing of two astronauts on the Moon, nominally scheduled for September 2026, due to concerns about hardware readiness and mission complexity.

    Under one of the options, astronauts would launch into low-Earth orbit inside an Orion spacecraft and rendezvous there with a Starship vehicle, separately launched by SpaceX. During this mission, similar to Apollo 9, a precursor to the Apollo 11 lunar landing, the crew would validate the ability of Orion and Starship to dock and test habitability inside Starship. The crew would then return to Earth. In another option NASA is considering, a crew would launch in Orion and fly to a small space station near the Moon, the Lunar Gateway, and then return to Earth.

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      Rocket Report: Starship could save Mars Sample Return; BE-4s for second Vulcan

      news.movim.eu / ArsTechnica · 6 days ago - 11:00 · 1 minute

    A BE-4 engine is moved into position on ULA's second Vulcan rocket.

    Enlarge / A BE-4 engine is moved into position on ULA's second Vulcan rocket. (credit: United Launch Alliance )

    Welcome to Edition 6.40 of the Rocket Report! There was a lot of exciting news this week. For the first time, SpaceX launched a reusable Falcon 9 booster for a 20th flight. A few miles away at Cape Canaveral, Boeing and United Launch Alliance completed one of the final steps before the first crew launch of the Starliner spacecraft. But I think one of the most interesting things that happened was NASA's decision to ask the space industry for more innovative ideas on how to do Mars Sample Return. I have no doubt that space companies will come up with some fascinating concepts, and I can't wait to hear about them.

    As always, we welcome reader submissions , and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

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    Going vertical Down Under. Gilmour Space has raised its privately-developed Eris rocket vertical on a launch pad in North Queensland for the first time, the Australian Broadcasting Corporation reports . This milestone marks the start of the next phase of launch preparations for Eris, a three-stage rocket powered by hybrid engines. If successful, Eris would become the first Australian-built rocket to reach orbit. Gilmour says the maiden flight of Eris is scheduled for no earlier than May 4, pending launch permit approvals. This presumably refers to a commercial launch license from the Australian government.

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