Archive for September, 2020
NASA’s Curiosity Mars rover is presently performing Sol 2892 tasks.
Susanne Schwenzer, a planetary geologist at The Open University; Milton Keynes, U.K., reports that Mars researchers are continuing to finish recent drilling activities.
They are taking a look at the instrument inlets on top of the rover deck to make sure no sample is remaining on the mesh or elsewhere that can be viewed.
New target
“We are already on the lookout for the nearby target ‘Ayton,’” notes Schwenzer. “We want to drill there too, to follow up the chemical changes we have observed in the area. Maybe Mars is going to tell us something really interesting here?”
All the observed nodules must mean something, but just exactly what researchers cannot tell without full mineralogy.
“Geologists love images, but occasionally mineralogy is the other friend we want to see, too! One of the questions is in what ways the nodules are similar or different from nodules we have seen previously,” Schwenzer adds.
Sharpening the digital pencil
With “Mary Anning” drill holes so close by, Mars scientists can also compare the two, which will further enhance science opportunities.
“As a geochemist and modeler,” Schwenzer remarks, “I am certainly very excited and have sharpened the (digital) pencil to get going on my modeling as soon as I can!”
A recently scripted Curiosity plan has the robot wrapping up some of the mosaic-observations started – and taking advantage of the fact that the rover stays in one place for a slice of time during a drill campaign.
Morphology of the workspace
Curiosity’s Mastcam is adding two sets of stereo images to the tally at its current location to further investigate the morphology of the workspace and to fill a gap at an interesting spot for a full analysis of the structures in the workspace, Schwenzer reports. In addition, change detection observations are continuing at “Upper Ollach.”
The rover’s Chemistry and Camera (ChemCam) is also used for imaging, doing a Remote Micro Imager (RMI) long distance observation to extend the mosaic.
Happy dance
The robot’s Alpha Particle X-Ray Spectrometer (APXS) is looking forward and investigating a target near the new drill site at Ayton. The target’s name is “Underhoul” and APXS is accompanied by Mars Hand Lens Imager (MAHLI) investigations.
Environmental researchers still monitor the atmosphere closely, with observations of the dust and opacity.
“Lots of images,” Schwenzer concludes, “happy dance from all geologists!”
As always, dates of planned rover activities are subject to change due to a variety of factors related to the Martian environment, communication relays and rover status.
New space missions to hellish Venus have repeatedly gotten the cold shoulder over the years, but exploring that cloud-veiled globe now appears to be receiving a renewed lease on life, quite literally.
An international team of researchers, led by Jane Greaves of Cardiff University, announced September 14 the detection of a rare molecule – phosphine – lingering in the clouds of Venus. Here on Earth, this gas is only made industrially, or by microbes that flourish in oxygen-free environments.
But let’s float this key question: does the revealing of phosphine point to extraterrestrial “aerial” life on hostile Venus?
Go to my new Scientific American story for more about this new finding at Venus…and what next?
Is There Life on Venus? These Missions Could Find It – Following a tantalizing discovery, these spacecraft could be headed to Earth’s twisted twin in search of the truth
https://www.scientificamerican.com/article/is-there-life-on-venus-these-missions-could-find-it/
Amazon.com entrepreneur and space visionary, Jeff Bezos, is on the lookout for those interested in orbital habitats.
According to a Blue Origin’s posting, the private space firm wants to develop the company’s vision of millions of people living and working in space.
To do so, humanity will require places for them to live and work: space destination systems in which value-creating economic activity can occur.
“LEO (low Earth orbit) habitable stations, learning from but going beyond the ISS (International Space Station), are a first step. Such stations, supporting a robust LEO economy, will be fundamentally different from ‘exploration’ habitats designed for small, professionally trained crews in deep space,” the website explains.
Task at hand
Here’s the task at hand, as defined in the careers section of the website:
“As Blue Origin’s Formulation Lead for the Orbital Habitat product line, you will lead development of technical concepts, product strategies, business cases, customer relationships, market-shaping outreach, industrial partnerships, implementation approaches, and supply chain.”
In addition the lead will partner with business development professionals, and will develop a detailed understanding of NASA, other government, and commercial needs and guide the iterative development of product strategy.
Lastly, “you will be accountable for capturing external and internal sponsorship funding to establish viable LEO destination systems in the 2020s.”
Bottom line of the job description: “You will directly impact the history of human spaceflight.”
For more information, go to:
https://www.blueorigin.com/careers
Then scroll down to: “See Open Positions” and checkmark “Program/Project Management” and view R4688, “Orbital Habitat Formulation Lead.”
Good luck…and send me a message if you get the job, either from Earth or in Earth orbit on your inspection tour!
A newly issued report examines China’s perceptions of its space program and the U.S. space program. It concludes that the United States and China are in a long-term competition in space.
“Although advancing rapidly, China’s space program is viewed by Chinese officials and analysts as trailing the U.S. space program. Nevertheless, China’s space industry plans to surpass the United States in space by mid-century,” the report explains.
The report — CHINA’S SPACE NARRATIVE -EXAMINING THE PORTRAYAL OF THE US-CHINA SPACE RELATIONSHIP IN CHINESE SOURCES AND ITS IMPLICATIONS FOR THE UNITED STATES – has been issued by the U.S. Air Force Air University’s China Aerospace Studies Institute.
“As the era of great power competition continues to evolve, we must understand the full breadth and depth of the competition, how they think, and how they are likely to act or react. This report lays the foundation to better understand the nature of the PRC’s [People’s Republic of China] vision of space, and its role in comprehensive national power,” explains Brendan Mulvaney, director of the China Aerospace Studies Institute.
Space resources
One area flagged in the report deals with a Chinese space resource extraction program.
That effort could lead to Chinese efforts “to shape international governance of the space environment in favor of Chinese interests or unilateral efforts to occupy favorable locations in space or on the Moon.”
The Outer Space Treaty, for example, which both the United States and China have signed, prohibits countries from claiming asteroids or other celestial bodies, but does not address private claims, the report points out. The Moon Treaty, on the other hand, does ban private claims, but neither the United States nor China has signed that document.
“The absence of an international governance system for space resource extraction could lead to space remaining a largely ungoverned commons subject to the unrestrained actions of individual countries prone to making the space equivalent of land grabs,” the report says.
This document is available at:
A new memorandum of understanding (MOU) announced today by U.S. Space Force (USSF) Chief of Space Operations Gen. John “Jay” Raymond and NASA Administrator Jim Bridenstine spells out new relationships between the organizations.
One area is in the deep space survey and tracking arena, using technologies to support extended Space Domain Awareness (SDA) and near Earth object (NEO) detection beyond geosynchronous orbit.
The MOU notes that despite years of effective use of all available assets, NASA has fallen short to meet a NEO survey deadline, “without leveraging future technical capabilities.
The Space Force’s “sphere of interest” now extends outward to 272,000 miles and beyond.
Read the entire NASA/Space Force MOU here at:
https://www.nasa.gov/sites/default/files/atoms/files/nasa_ussf_mou_21_sep_20.pdf
Also, go to this Department of Defense statement:
NASA, DOD Agree to Collaborate More Closely in Space
Go to:
Go to the full MOU at:
https://www.nasa.gov/sites/default/files/atoms/files/nasa_ussf_mou_21_sep_20.pdf
The U.S. Naval Research Laboratory (NRL) is working on efforts to demonstrate how energy can be transmitted without wires, also known as power beaming.
One of NRL’s power beaming experiments is now aboard the U.S. military’s X-37 space plane.
LEctenna is a light-emitting rectifying antenna that converts a wireless network signal, similar to home networks, into electric power.
LEctenna swag
NRL has formed the LEctenna challenge, requesting participants to improve the LEctenna…and get a prize!
The challenge asks for individuals to send NRL a photo or short video on social media (#lectenna) or to lectenna@nrl.navy.mil and they’ll send you LEctenna swag!
Legal disclaimer: Kids under 13, please ask your parents first. The U.S. Naval Research Laboratory will not use your submissions without your permission. However, we may reshare your social media posts if you choose to send your LEctenna info that way. Quantities are limited.
Check out this challenge video at:
Also, go to these informative videos regarding LEctenna.
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En route to the Red Planet, China’s Mars probe Tianwen-1 has successfully carried out its second orbital correction on Sunday, using four of its 120N engines working for 20 seconds.
Tianwen-1, which means “Questions to Heaven,” has traveled about 60 days in orbit since liftoff on July 23.
All of the probe’s systems continue to be in good condition, said the China National Space Administration (CNSA).
Minor correction
The minor orbital correction was carried out to ensure the probe is on a correct flight path to reach Mars in February of next year.
On August 2, Tianwen-1 carried out its first orbital correction.
According to the CNSA, next-up for the Mars spacecraft, a deep space maneuver in October; a larger orbital control action that will adjust the inclination and size of the probe’s orbit.
Given the probe’s current distance from Earth, China Central Television (CCTV) reports that one-way communication is delayed by about a minute. The probe will continue traveling away from Earth at roughly 186,411 miles (300,000 kilometers) per day, posing more challenges in communication.
Deep space maneuver
“During the probe’s flight along the Earth-Mars transfer orbit, it won’t directly enter the Mars’ orbit, but has to go through a deep space maneuver first. If the deep space maneuver is completed accurately, the probe can reach the Mars even without further orbital corrections,” Dong Jie, chief designer of the Tianwen-1 lander at the China Academy of Space Technology told CCTV.
“During our implementation procedures, we have confirmed the content of every order and the timing of sending them to the probe,” Dong added. “If anything goes wrong with the change of orbit, we have already made plans to resolve it.”
Tianwen-1 is designed to orbit the Red Planet for several months, then in May dispatch a lander that then deploys a rover. If successful, attempting all these parts of Mars exploration in a single mission would be a first.
China’s growing interest in landing astronauts on the Moon includes developing a potent new launch vehicle.
Zhou Yanfei, deputy chief designer of China’s manned space program stated late last week that not only are the country’s existing boosters not powerful enough for the task, other technological skills are missing.
“The second problem is our survival ability under extraterrestrial circumstances,” Zhou told China Central Television (CCTV). “We do not have any experience in that yet. Neither do we have ground support capacity. So far our manned space exploration missions have been focused on tasks in low-Earth orbit. So for lunar scientific exploration and applications, we also need to establish a systematic lunar exploration and application system and propose original scientific exploration targets and methods.”
The Shenzhou-series of piloted spacecraft are not suitable for lunar expeditions and China doesn’t yet have a lunar landing vehicle, Zhou said in a China Daily report. “Our ground support system was designed for operations in low-Earth orbit rather than on the lunar surface. Moreover, Chinese astronauts have no experience working on an extraterrestrial body.”
New wave of lunar exploration
Zhou’s comments were highlighted in his report to the 2020 China Space Conference, now underway until September 21 in Fuzhou, capital of Fujian province.
As reported by China Daily, China is resolute to land its astronauts on the Moon and establish a scientific station there, according to the project leader.
“A new wave of lunar exploration has been emerging in the world, with participants aiming to make sustainable missions to deepen knowledge of the Moon and exploit resources there,” Zhou said.
Moon booster
Zhou said researchers have initiated two approaches to building China’s Moon booster: making a new heavy-lift rocket capable of deploying more than 35 metric tons of payload in a lunar transfer orbit, or modifying the next-generation rocket designed to carry astronauts, which is under development.
The latter approach is being pursued, China Daily adds, because it would be easier to design and shortens the time the booster can become operational.
China’s Moon booster is being designed at the China Academy of Launch Vehicle Technology. Its main body will be 285 feet (87 meters tall), with a diameter of 16 feet (5 meters), making the launcher nearly twice as tall as the Long March 5, currently the largest of China’s family of boosters.
China Daily adds that the huge launcher would boast a liftoff weight of about 2,200 metric tons, nearly triple that of the Long March 5. The booster would enable hurling a 25-ton spacecraft onto a lunar trajectory.
Return sample mission
In a related development, Yu Dengyun, deputy chief designer of China’s lunar exploration program, said at the gathering that preparations are progressing smoothly for this year’s liftoff of the Chang’e-5 probe to acquire samples of the Moon and bring them back to Earth.
Chang’e-5 is comprised of four parts: an orbiter, a returner, an ascender and a lander. After reaching lunar orbit, the orbiter and returner will circle the Moon, while the lander and the ascender will land on the lunar surface. The lander will then collect around 4.4 pounds (2 kilograms) of lunar samples into a vessel in the ascender. The vessel will be brought back to the Earth by the returner.
“Our previous returners came back to the Earth at the first cosmic velocity, around 7.9 kilometers every second, while this time the returner is designed at the second cosmic velocity, around 11.2 kilometers every second. Therefore we face many challenges including the aerodynamic configuration, the adoption of thermal protection material and our control,” Yu told CCTV.
The 2020 China Space Conference began last Friday, jointly hosted by the Chinese Society of Astronautics and the China Space Foundation.
For a look at the 2020 China Space Conference, go to:
This new video spotlights the upcoming Chang’e-5 Moon mission at:
It is officially tagged by the North America Aerospace Defense Command as 46395, 2020-063G, an object that was released into Earth orbit by China’s experimental space plane.
That space plane circuited Earth for roughly two days, touching down on September 6, 2020, apparently landing on a lengthy airstrip in the Xinjiang Uygur Autonomous Region, near Lake Lop Nor.
But before landing, an object separated from China’s experimental space plane.
Puzzling object
A global network of amateur satellite watchers is keeping an eye on this Earth-circling space drifter, sharing their observations. They’ve already discerned some characteristics of the puzzling object.
For example, Russian radio amateur, R4UAB, has tweeted that the object is transmitting on 2280MHz. That frequency is used by the Chinese manned space program, specifically Shenzhou, Tiangong, and Tianzhou space missions, notes satellite tracker, Scott Tilley.
Tilley and others have confirmed the emissions are coming from this object via Doppler and radio tracking via a narrow beam width dish antenna.
The emissions where 4MHz wide and unlike telemetry, tracking and control (TT&C) signals that Tilley has seen from other Chinese missions to date. “The emission appears to be present for entire orbit based on other reports,” he adds.
Alive and tumbling
At the moment, according to satellite observer, Bob Christy of Zarya.info, all that the radio trackers can say is that it’s “alive” and is tumbling – but no-one has yet indicated the object’s rate of tumble. “Fading is caused by the transmitting aerials either pointing the wrong way or getting blocked as it rotates,” he told Inside Outer Space.
Christy is taking a hard re-look at tracking data about the space plane-deployed object. “One interpretation is that the new object separated as soon as the space plane reached orbit,” he said.
Speculation has it that the object might be a Banxing inspector satellite, “probably used to inspect the main vehicle while on orbit and may also carry a science/technology payload,” Christy thinks. Similar satellites were deployed from China’s Shenzhou-7 and Tiangong-2 space lab.
The new object’s first orbit data was published September 6, showing it in the orbit originally occupied by the space plane, Christy notes. “If it is flashing/tumbling, that would indicate its mission is probably completed. Continued radio transmissions suggest it has solar cells,” he concludes.
Caught on video
In a new development, satellite sleuth Marco Langbroek of Leiden, Netherlands has posted his September 20 observation of the mysterious “Object A” (2020-063G), left in orbit by China’s experimental space plane.
Langbroek notes that the object does not appear to be just a piece of debris – e.g. some discarded cover. “Radio observers discovered that it sends a signal in the L-band near 2280 MHz, something debris doesn’t do. So, this appears to be an interesting object that had or has some function, including a radio data signal downlink.”
The object does not appear to have maneuvered so far, Langbroek adds. “I initially thought that it might be a cubesat, but it appears to be rather large for that.”
In reviewing his video, Langbroek says the mysterious object showed slow but marked brightness variations, confirming reports by radio observers of periodic fading in its transmitting signal. “So if this is due to a tumble, it is a slow tumble,” he concludes.
To view his video of the object, go to:
https://sattrackcam.blogspot.com/2020/09/observing-mysterious-object-2020-063g.html
NASA’s Curiosity Mars rover is now performing Sol 2886 tasks.
Reports Michelle Minitti, a planetary geologist at Framework in Silver Spring, Maryland: Based on the initial results from the recent Sample Analysis at Mars (SAM) wet chemistry experiment, the SAM team elected to complement it with a second wet chemistry experiment on the “Mary Anning 3” drill sample.
The first experiment was run with the reagent tetramethylammonium hydroxide (TMAH), and the second will be run with the reagent N-methyl-N-(tert-butyldimethylsilyl)trifluoroacetamide (MTBSTFA).
Fuller picture
“These are called wet chemistry experiments because SAM adds a liquid reagent to the sample before they analyze it,” Minitti explains. “Each reagent reacts differently with the sample, so each experiment shines a slightly different light on what carbon-bearing compounds lie within the sample. Together, we get a fuller picture of the chemistry of the Mary Anning sample.”
The SAM experiment is involved enough that it requires a dedicated sol in the plan, Minitti continues, but the second sol of the plan [2885-2886] was available for other observations.
Coherent bedrock
The robot’s Chemistry and Camera (ChemCam) targeted two cobbles, “Quoy” and “Skor,” which are similar to larger rock fragments, to compare their chemistries to that of the coherent bedrock slabs in this area.
“ChemCam also targeted a white patch, “Lealt,” which resembles the white vein materials we have encountered in so much of our exploration of Gale crater,” Minitti adds.
Gray bulbous materials
Mars scientists have once again targeted “Le Ceasnachadh” for a ChemCam passive observation. The gray bulbous materials that dot the top of this target are hard to hit when researchers are aiming from more than 16 feet (5 meters) away, so they hope to land a few more points on these features in this effort.
Minitti also notes that Curiosity’s Navcam is slated to scan the skies above for clouds and dust devils, and will measure the dust load in the atmosphere.
Lastly, the Rover Environmental Monitoring Station (REMS), the Radiation Assessment Detector (RAD) and Dynamic Albedo of Neutrons (DAN) keep their regular watch on the environment around and below the rover throughout the recently formulated plan, Minitti concludes.
Dates of planned rover activities are subject to change due to a variety of factors related to the Martian environment, communication relays and rover status.