Tag: engineering

Odysseus is on its side, some antennas blocked

11:30 pm

It appears the reason communications with Intuitive Machines’ Odysseus lunar lander has been so difficult since its landing yesterdary is that something caused it to fall over so that it is now lying on its side, blocking some of its antennas.

Intuitive Machines initially believed its six-footed lander, Odysseus, was upright after Thursday’s touchdown. But CEO Steve Altemus said Friday the craft “caught a foot in the surface,” falling onto its side and, quite possibly, leaning against a rock. He said it was coming in too fast and may have snapped a leg. “So far, we have quite a bit of operational capability even though we’re tipped over,” he told reporters.

But some antennas were pointed toward the surface, limiting flight controllers’ ability to get data down, Altemus said. The antennas were stationed high on the 14-foot (4.3-meter) lander to facilitate communications at the hilly, cratered and shadowed south polar region.

Its exact location also appears to be several miles from its intended landing site next to the crater Malapart A. Scientists who operate Lunar Reconnaissance Orbiter (LRO) hope orbital images this weekend will identify the spacecraft’s precise location.

The company also revealed that the reason its own laser guidance system would not function — requiring a quick software patch allowing the spacecraft to use a different NASA system — was because “a switch was not flipped before flight.”

Because of this switch in navigation equipment it was decided to cancel the release of the student-built camera probe dubbed Eaglecam that was supposed to be released when Odysseus was about 100 feet above the surface and take images of the landing. Instead, it is now hoped it can be released post landing and get far enough away to look back and capture photos of the lander.

All these problems however do not make this mission a failure. Like Japan’s SLIM lander, the primary goal of this mission was to demonstrate the technology for softlanding an unmanned spacecraft on the Moon. Intuitive Machines has succeeded in this goal. Though obviously some changes must be made to improve this engineering, the success with Odysseus strongly suggests the next mission later this year will do far better.

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Mars’ flaky rocks

12:14 pm

Mars' flaky rocks
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on February 21, 2024 by the high resolution camera on the Mars rover Curiosity. It once again shows us a very typical many layered rock that the rover has seen routinely in Gale Crater and in the foothills of Mount Sharp.

The long flake tells us many things. First, Mars’ one-third Earth gravity, thin atmosphere, and lack of life allows such flakes to survive. On Earth not only would wind and rain break such delicate forms, plant life would eat away at it as well.

Second, the many thin layers tell us again that Mars’ geological history comprises many cycles and geological events, each of which placed another layer down. The many layers here could actually be evidence of year-by-year events, much like tree-rings detail the drought conditions yearly on Earth.

It will take study on Mars however to find out. These image only tantalize. They cannot give answers.

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Vast to compete with Axiom for NASA’s limited slots for commercial manned missions to ISS

9:40 am

The private space station company Vast, the only one presently building its own space station without a NASA contract, has now announced that it intends to to compete with Axiom for the limited docking slots NASA has made available for commercial manned tourist missions to ISS.

During a panel discussion at the Federal Aviation Administration Commercial Space Transportation Conference Feb. 21, Max Haot, chief executive of Vast, said his company would bid on the fifth and sixth private astronaut missions, or PAMs, that NASA offers to companies seeking to flying commercial missions to the ISS. “From our point of view, it will make us a better space station builder, a better partner of NASA, and it will help us practice a lot of the disciplines we are building” for its future commercial stations, he said of Vast’s plan to bid on the missions.

Up until now, Axiom has had no competition for those limited docking opportunities, has flown two missions, with a third planned for this fall. All it needed to do is negotiate the rental fees with NASA for using ISS. Now NASA will need to open up bidding for those slots. Its job is not to play favorites, but to instead make its taxpayer-funded facilities available to as many private companies as possible. Whether it will do so is at present unclear.

Vast’s own space station, a single module to be launched on SpaceX’s Starship/Superheavy, dubbed Haven-1, is scheduled for launch next year according to Vast officials. If so (assuming SpaceX’s rocket is operational by then), Vast will be the first private space station in orbit, beating Axiom and the two consortiums building Orbital Reef and Starlab. And it will have done it without taxpayer money.

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Webb: Infrared data sees neutron star remaining after 1987 supernova, the nearest in more than 4 centuries

9:29 am

Webb's infrared view of Supernova 1987a
Click for original image.

Using the Webb Space Telescope, astronomers have obtained infrared data that confirms the existence of a neutron star at the location of Supernova 1987a, located in the Large Magellanic Cloud, the nearest such supernova in more than four centuries and the only one visible to the naked eye since the invention of the telescope.

Indirect evidence for the presence of a neutron star at the center of the remnant has been found in the past few years, and observations of much older supernova remnants — such as the Crab Nebula — confirm that neutron stars are found in many supernova remnants. However, no direct evidence of a neutron star in the aftermath of SN 1987A (or any other such recent supernova explosion) had been observed, until now.

…Spectral analysis of the [Webb] results showed a strong signal due to ionized argon from the center of the ejected material that surrounds the original site of SN 1987A. Subsequent observations using Webb’s NIRSpec (Near-Infrared Spectrograph) IFU at shorter wavelengths found even more heavily ionized chemical elements, particularly five times ionized argon (meaning argon atoms that have lost five of their 18 electrons). Such ions require highly energetic photons to form, and those photons have to come from somewhere.

That “somewhere” has to be a neutron star, based on present theories. The image above shows three different Webb views of Supernova 1987a, with the one on the lower right suggesting the existence of a point source at the center of the supernova remnant. In the left image the circular ring of bright spots is an older ring of dust and material that has been lit up by the crash of the explosive material (as indicated in blue at the center) flung out from the star when it went supernova and collapsed into a neutron star. That wave of explosive material took several decades to reach the ring and enflame it.

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SpaceX and China complete launches

9:11 am

Both SpaceX and China today successfully completed launches.

First, SpaceX launched 23 Starlink satellites, its Falcon 9 rocket lifting off from Vandenberg in California. The first stage flew its 19th mission, landing successfully on a drone ship in the Pacific, and tying the record for the most flights for a Falcon 9 booster.

Then, China launched a classified military satellite using its biggest rocket, the Long March 5, lifting off from its coastal spaceport in Wenchang. It remains unclear if China now has the ability to restart the engines on that rocket’s core stage, which reaches orbit, is large enough to survive re-entry, and has previously crashed uncontrolled, with one return barely missing the New York metropolitan area. If not, then this core stage carries a threat, as will the four or so other launches of the Long March 5 that China plans later this year.

The leaders in the 2024 launch race:

17 SpaceX
9 China
2 Iran
2 India
2 Rocket Lab
2 Japan
2 Russia

American private enterprise presently leads the entire world combined 20 to 17 in successful launches, while SpaceX by itself is tied 17-17 with the rest of the world (excluding other American companies).

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Odysseus appears to have landed successfully

4:57 pm

The privately built Odysseus lunar lander appears to have landed successfully near the south pole of the Moon, though ground controllers have not yet gotten full confirmation that all systems are functioning.

As stated by the mission director, after noting that they were getting a faint signal from the lander’s high gain antenna:

All stations, this is mission director on IM-1. We are evaluating how we can refine that signal and dial in the pointing for our dishes. What we can confirm without a doubt is that our equipment is on the surface of the Moon and we are transmitting. So congratulations IM team. We’ll see how much more we can get from that.

Shortly thereafter the company and NASA ended the live stream.

At this time they do not yet know exactly where the lander touched down, or whether it did so without damage. The signal from the high gain antenna suggests the communications system is intact as well as the antenna, but the lack of further confirmation suggests damage to other instruments, though it is also possible that the signal is not yet firm enough to obtain data from other instruments.

More updates to follow, without doubt.

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Frozen lava rapids on Mars

11:38 am

Frozen lava rapids on Mars
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on October 6, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows a spot on Mars where lava was squeezed between and around some small peaks as it flowed quickly south, flooding all the low areas in this landscape.

The science team describes the features in the full image as “streamlined”, a description that is literally accurate. As this “stream” of lava rushed past, it “lined” the higher terrain, carving it into tear-dropped shapes.

In the color strip, note the blueish spots at the northern base of the 400-foot-high hill. According to the science team’s explanation [pdf] of the colors in MRO images, “Frost and ice are also relatively blue, but bright, and often concentrated at the poles or on pole-facing slopes.” The picture was taken in summer, so if these bright spots are frost or ice, it suggests they are well shaded from sunlight in those north-facing alcoves. This location is only 9 degrees north of the equator, so finding any near surface ice here is highly unlikely. That frost might exist however is intriguing, to say the least.
» Read more

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Ariane-6 arrives in French Guiana

9:33 am

Europe’s new rocket, Ariane-6, has arrived by specially-designed ship at the dock in French Guiana and is ready for off loading in advance of its presently scheduled inaugural launch this summer.

On this trip, Canopée brings the central core for Ariane 6’s first flight. Having collected the upper stage from Bremen, Germany, Canopée moved on to Le Havre, France, to load the main stage of Ariane 6. … Canopée’s structure is tailored to carry large, fragile loads as well as navigate the shallow Kourou river to Pariacabo harbour. From here the various Ariane 6 components are offloaded and transported by road to the new Ariane 6 launch vehicle assembly building just a few kilometres away.

Built for Arianespace, the commercial arm of the European Space Agency (ESA). the rocket’s launch is four years behind schedule. It is also not reuseable, which has limited its marketability and explains why ESA as well as its member nations have shifted to encouraging new private rocket companies with competing and cheaper rockets. It has decided it is a mistake to rely solely on a government-owned rocket company.

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Varda’s space capsule lands successfully in Utah

9:21 am

Varda's space capsule, on the ground in Utah

Varda yesterday successfully returned its orbiting space capsule back to Earth after a six month delay caused by government red tape.

Varda Space Industries’ in-space manufacturing capsule, called Winnebago-1, landed in the Utah desert at around 4:40 p.m. EST. Inside the capsule are crystals of the drug ritonavir, which is used to treat HIV/AIDS. It marks a successful conclusion of Varda’s first experimental mission to grow pharmaceuticals on orbit, as well as the first time a commercial company has landed a spacecraft on U.S. soil, ever.

The capsule will now be sent back to Varda’s facilities in Los Angeles for analysis, and the vials of ritonavir will be shipped to a research company called Improved Pharma for post-flight characterization, Varda said in a statement. The company will also be sharing all the data collected through the mission with the Air Force and NASA, per existing agreements with those agencies.

The image to the right, released by Varda, shows the capsule on the ground after landing. With this success the company’s capsule is now available for commercial use, with three more launches already purchased through Rocket Lab. There is a very viable market for example for certain drugs that cannot be manufactured well on Earth, but in weightlessness can be produced very purely.

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Live stream of landing of Odysseus on Moon

8:59 am

South Pole of Moon with landing sites

UPDATE: The engineering team has decided to delay the landing attempt by one lunar orbit, pushing it back to 6:24 pm (Eastern). The live stream begins well before then, so that NASA can get in a lot of blather and propaganda, so feel safe waiting to tune in until 6 pm (Eastern).
——————-
Capitalism in space: I have embedded below the NASA live stream for the presently scheduled 5:30 pm (Eastern) landing on the Moon of Intuitive Machines Nova-C lunar lander dubbed Odysseus.

The green dot on the map to the right marks the planned landing site, about 190 miles from the Moon’s south pole. This will be the closest attempted landing so far to that pole, and if successful it will land on the rim of a crater, Malapart A, that is believed to have a permanently shadowed interior.

Odysseus however has no instruments capable of seeing into that interior. Its main mission is engineering, to test the landing technology of Intuitive Machines’ spacecraft. As part of this effort, it will release a small camera probe, dubbed EagleCam, when it is about 100 feet above the surface, which will to take images of that landing. [Update: That probe is unprecedented for another reason: It will be first student-built probe to land on another world, as it was designed and built by a team of students at Embry-Riddle Aeronautical University in Florida.]

If the landing is successful, Odysseus is designed to last until sunset on the Moon, about another two weeks. It carries a variety of NASA and commercial payloads, including a private small optical telescope. More important, it will allow the company to follow through with its manifest of future missions, including a second lunar landing later this year.
» Read more

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Complete New Glenn test prototype now vertical on launchpad

7:47 pm

New Glenn test vehicle on launchpad

For the first time, after more than a decade of development, a complete two-stage New Glenn test vehicle is now vertical on the launchpad at Cape Canaveral, ready for launchpad tests in preparation for what Blue Origin hopes will be a first launch later this year.

The journey to the pad began in December when New Glenn’s first-stage modules were transported from our factory to the Integration Facility nine miles away. The tests will conclude in the coming weeks following several demonstrations of cryogenic fluid loading, pressure control, and the vehicle’s venting systems. Our launch pad and ground systems are complete and will be activated for the first time during the test campaign.

If successful, New Glenn would be somewhat competitive with Falcon Heavy, and would give the U.S. a third company, after ULA, capable of competing directly with SpaceX. This of course assumes Blue Origin doesn’t buy ULA, which has been rumored.

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Curiosity’s view of Gale Crater from its new heights on Mount Sharp

10:18 am

Low resolution version of panorama
Click for full resolution version of panorama. For the original images, go here, here, and here.

Overview map

Cool image time! The panorama above was created from three pictures taken on Februay 13, 2024 by the left navigation camera on the Mars rover Curiosity (available here, here, and here). It looks to the north, across Gale Crater and its nearest rim, about twenty miles away. The red dotted line indicates the approximate route Curiosity took to get to this point. The yellow lines on the overview map to the right show the approximate area covered by the panorama.

The images were part of the routine mosaics created by both the left and right navigation cameras for helping engineers plot the rover’s future travels. The pictures that look back at the far rim however also provide important atmospheric data. In this case, the haze tells the scientists how much dust is in the atmosphere. It is presently winter in Gale Crater, which also corresponds to the dust storm season. Thus, the view is very hazy.

Curiosity will likely remain at this location for several more weeks, as the science team is about to begin another drilling campaign. Note the large dark area on the cliff face on the right that is also level with the terrace where Curiosity presently sits. The scientists want to get core data of this layer, and they think they are at a good spot to do so.

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