Tag: engineering

Next China lunar lander aimed for farside south pole

5:28 pm

The competition heats up: China announced plans today to send its next lunar lander, Chang’e 4, to the Moon’s farside south pole in 2018.

The lander of Chang’e-4 will be equipped with descent and terrain cameras, and the rover will be equipped with a panoramic camera, he said. Like China’s first lunar rover Yutu, or Jade Rabbit, carried by Chang’e-3, the rover of Chang’e-4 will carry subsurface penetrating radar to detect the near surface structure of the moon, and an infrared spectrometer to analyze the chemical composition of lunar samples.

But unlike Chang’e-3, the new lander will be equipped with an important scientific payload especially designed for the far side of the moon: a low-frequency radio spectrometer. “Since the far side of the moon is shielded from electromagnetic interference from the Earth, it’s an ideal place to research the space environment and solar bursts, and the probe can ‘listen’ to the deeper reaches of the cosmos,” Liu said.

The U.S. had been in the lead in the land rush to gain dominance in the possibly water-rich lunar south pole. We apparently have lost this lead with decision of President Obama and Congress to focus elsewhere, either the asteroids or Mars.

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Curiosity heads south

8:53 am

After four years of southwest travel to skirt a large dune field at the base of Mount Sharp, Curiosity has finally turned due south to aim directly up the mountain.

“Now that we’ve skirted our way around the dunes and crossed the plateau, we’ve turned south to climb the mountain head-on,” said Curiosity Project Scientist Ashwin Vasavada, of NASA’s Jet Propulsion Laboratory, Pasadena, California. “Since landing, we’ve been aiming for this gap in the terrain and this left turn. It’s a great moment for the mission.”

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Cygnus to depart ISS, then start a fire

5:40 pm

A fire in space: Orbital ATK’s Cygnus capsule is scheduled to leave ISS on Tuesday, when shortly thereafter it will begin a controlled fire experiment.

“Saffire-I provides a new way to study a realistic fire on a spacecraft. This hasn’t been possible in the past because the risks for performing such studies on crewed spacecraft are too high. Instruments on the returning Cygnus will measure flame growth, oxygen use and more. Results could determine microgravity flammability limits for several spacecraft materials, help to validate NASA’s material selection criteria, and help scientists understand how microgravity and limited oxygen affect flame size. The investigation is crucial for the safety of current and future space missions. – See more at: http://www.space.com/17933-nasa-television-webcasts-live-space-tv.html#sthash.2DjFjJqY.dpuf

The departure is scheduled for 9 am (eastern), and will aired live by NASA.

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NASA and United Arab Emirates sign space cooperation deal

7:30 am

The competition heats up (but not in the way you think): NASA and the United Arab Emirates (UAE) space agency have signed an agreement to cooperate in space research and technology development.

The agreement covers cooperation and collaboration in space science, operational Earth observation and Earth science, aeronautics, space operations and exploration, education, technology, safety and mission assurance, and other areas with potential benefits to all nations.

The two countries will continue to identify additional areas of mutual interest for possible future cooperative programs or joint activities on Earth, in airspace, or in outer space. These activities may include the joint use of aircraft, scientific instruments aboard spacecraft, ground-based research facilities, spacecraft and space research platforms, as well as ground-based antennas for tracking, telemetry, and data acquisition. Additionally, the two countries will aim to collaborate on the creation and implementation of education and public outreach programs and joint workshops, with the goal of facilitating the exchange of scientific data, scientists, engineers, and views and experiences on relevant regulatory frameworks and standards.

The competition here is not between these big space government programs, who are increasingly teaming up, but between the big space government programs and the profitable and uncontrolled private sector. I fully expect there to be more calls for government supervision and licensing of private space, just to control it better. And what better way to leverage that control but to link every big space program in the world together, so that there are no independent efforts?

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Successful ULA Delta 4 Heavy launch today

6:03 pm

The competition heats up: ULA today successfully launched a U.S. National Reconnaissance Office spy satellite, using what is presently the world’s most powerful rocket, the Delta 4 Heavy.

In many ways, this rocket’s launch, which you can see in the video embedded below the fold, gives a rough idea of what a Falcon Heavy launch will look like, since the rockets have somewhat similar configurations.
» Read more

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Musk hints details of SpaceX Mars project

4:40 pm

The competition heats up: In an interview with the Washington Post this week, Elon Musk gave some more hints at his company’s future plans to send its Dragon capsules to Mars.

“Essentially what we’re saying is we’re establishing a cargo route to Mars,” [Musk] said. “It’s a regular cargo route. You can count on it. It’s going happen every 26 months. Like a train leaving the station. And if scientists around the world know that they can count on that, and it’s going to be inexpensive, relatively speaking compared to anything in the past, then they will plan accordingly and come up with a lot of great experiments.”

The key to Musk’s effort is that he plans on doing it. He isn’t sitting around waiting for others, or trying to convince others to join him in a partnership before proceeding. He is simply doing it, and is welcoming others to take advantage of the opportunity he is offering.

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Pluto’s jagged shores

10:43 am

Pluto's jagged shoreline

Cool image time! The picture on the right, taken by New Horizons during its July 2015 flyby and cropped and reduced here, shows the reddish hues of the Krun Macula dark region along the shore of Pluto’s vast nitrogen ice plains. The hillsides here rise about a mile and a half above both the plains and the valleys, making them deeper than the Grand Canyon. The hills are “believed to get its dark red color from tholins, complex molecules found across Pluto.”

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Battle for communications spectrum between private companies

9:09 am

The competition heats up: One group of mobile broadband companies is fighting another group of satellite-based internet companies for control over the use of a part of the electromagnetic spectrum.

A coalition of 5G terrestrial mobile broadband companies led by Charlie Ergen’s Dish Network on June 8 asked U.S. regulators to strip future low-orbiting satellite Internet constellations of their priority access to 500 megahertz of Ku-band spectrum – spectrum coveted by prospective constellation operators including OneWeb LLC and SpaceX. SpaceX and satellite fleet operator Intelsat, a OneWeb investor and partner, immediately filed separate opposition papers to the FCC, arguing that nongeostationary-orbit (NGSO) constellations are very much alive.

In the middle is the FCC and our hapless and increasingly corrupt federal government. I sadly suspect the side that will win this battle will be the side that gives the most campaign money to the right politicians.

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India’s government proposes ending satellite competition

11:19 am

The competition cools down? A regulatory agency in India is proposing eliminating commercial satellite competition and consolidating all satellite television broadcasts onto a handful of government owned and launched satellites.

Indian Prime Minister Narendra Modi’s “Make in India” campaign seeks to promote India’s domestic industrial base. The Telecom Regulatory Authority of India (TRAI) on May 23 published what it calls a “pre-consultation paper” that points to the savings satellite-television broadcasters could realize if they stopped beaming the same programs on different satellites, and instead banded together on one or two spacecraft.

As of March 2015, the latest period for which TRAI has produced figures, there were 76 million DTH subscribers in India, of which 41.1 million were considered active. These subscribers received programming from six pay TV DTH providers and one free-to-air satellite broadcast service. TRAI said multiple DTH providers are broadcasting the same channels even as they compete with each other for subscribers. “There is scope for better utilization of available infrastructure,” TRAI said. “There is a need to examine technical and commercial issues in sharing of infrastructure such as satellite transponders, Earth station facilities….”

There is also this important component to the story:

India has been one of the biggest satellite-DTH growth markets in recent years, but one in which barriers to entry by foreigners remain high. Under Indian law, television broadcasters seeking operating licenses are given preferential treatment if they use India’s own Insat telecommunications satellites, owned and operated by the Indian Space Research Organization (ISRO). Non-Indian satellites are permitted if ISRO’s Insat system does not have sufficient capacity to meet programmers’ demand. This has been the case for years as ISRO has been unable to keep up with the market for satellite television.

In other words, the commercial satellite business in India is doing great, so let’s muck it up by having one government agency create a monopoly for another government agency.

The United States tried this in the 1960s when it banned private companies from launching commercial communications satellites and instead required all such satellites to be built by the government-managed Comsat corporation. The result in the U.S. was a squelched satellite and launch industry that did not recover for more than a decade, and only did so when the Nixon administration forced a change in the rules.

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Masten unveils two new reusable suborbital rockets

9:40 am

The competition heats up: Masten Space Systems has unveiled two new small reusable suborbital rockets, designed to be used for short research flights.

The new unmanned rockets can take off and land vertically, can be reused in a short amount of time, and and hover in mid-air. The approximately 15-foot rockets are a lot smaller than the reusable rockets that Blue Origin and SpaceX are launching, landing, and (in Blue Origin’s case) already reusing. They can’t travel as high or carry nearly as heavy of a payload, but they could prove to be useful for gathering science data in suborbital space.

The link has a short video showing the rockets in operation. Very impressive, even if small.

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Elon Musk sends a tweet and the world listens

8:56 am

The competition heats up: Yesterday Elon Musk sent out a tweet that simply repeated something his company has been saying now for several months — but with one slight additional detail — and the press went gaga.

What Musk said was that SpaceX hopes to reuse one of its used Falcon 9 first stages by September or October. Previously they had merely said they were aiming to do it before the end of the year. Since SES has offered one of its satellites for the job, and since it has had for months two such satellites scheduled for launch by SpaceX in September and October, this announcement by Musk is not really much of a surprise. Yet, the tweet was enough for all of the following mainstream news sources to gin up news-breaking headlines:

I am not really complaining. What I am really noting is how serious the world now takes what Musk and SpaceX are doing. They say they plan to do something new and revolutionary, and people sit up and take notice. And the reasons are twofold. First, everything they have said they were going to do, they have done. Musk’s announcement has to be taken seriously. Second, Musk owns SpaceX, and does not really need anyone’s permission to do this. He isn’t in a negotiation with numerous other players, as has been the case with NASA and its projects for the past half century. We know that if he wants to try something, the only things that could stop him are lack of capital and lack of good engineering, neither of which are an obstacle in this case.

So, be prepared for the first relaunch of a rocket’s first stage sometime this fall. And don’t be surprised if that isn’t the only new thing SpaceX accomplishes at the time.

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FAA warns public of military GPS jamming tests

9:44 am

The FAA has issued a warning that GPS at high elevations may be unreliable during jamming tests being conducted by the U.S. military during June.

The FAA issued an advisory warning pilots on Saturday that global positioning systems (GPS) could be unreliable during six different days this month, primarily in the Southwestern United States. On June 7, 9, 21, 23, 28, and 30th the GPS interference testing will be taking place between 9:30am and 3:30pm Pacific time. But if you’re on the ground, you probably won’t notice interference.

The testing will be centered on China Lake, California—home to the Navy’s 1.1 million acre Naval Air Weapons Center in the Mojave Desert. The potentially lost signals will stretch hundreds of miles in each direction and will affect various types of GPS, reaching the furthest at higher altitudes. But the jamming will only affect aircraft above 5,000 feet. As you can see from the FAA map below, the jamming will almost reach the California-Oregon border at 40,000 feet above sea level and 505 nautical miles at its greatest range.

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Elon Musk to meet with Defense Secretary

9:25 am

The competition heats up: A private meeting to discuss modern innovation between Elon Musk and Defense Secretary Ash Carter has been scheduled for Wednesday.

Ash Carter, the U.S. Secretary of Defense, and Elon Musk, SpaceX’s founder and chief executive, will discuss innovation June 8 in a private meeting, the Pentagon’s top spokesman said. “Elon Musk is one of the most innovative minds in this country and the secretary, as you know, has been reaching out to a number of members of the technology community to get their ideas, their feedback, find out what’s going on in the world of innovation,” Peter Cook, the Pentagon’s press secretary said during a June 6 briefing. “The secretary’s had a number of meetings with business leaders and innovation leaders in particular out in Silicon Valley, other parts of the country, and I think that’s his goal here: to hear directly from Elon Musk on some of these issues.”

The meeting is private, which means an agenda or discussion items are generally not released. More details were not immediately available.

I am sure about one thing: This meeting is going to make the corporate board of ULA very nervous.

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The history of the stopwatch

9:20 am

Link here. The most fascinating part of this story is the recent discovery of the very first stopwatch, previously unknown, built in 1816, and remarkably similar to the standard analog stopwatches used for decades until the arrival of digital equipment.

The layout of the compteur also makes one suspect it ended up in 1816 via a time machine. Instead of inking paper, it has a silvered and frosted metal dial dominated by a large fraction-second hand like later stopwatches, and three subdials for marking hours, minutes, and whole seconds Along with this, the stopwatch has a button at 12 o’clock to start and stop it, plus an 11 o’clock button to instantly reset the dials. This is a feature common to modern stopwatches and one not thought to be invented until 1862 by Adolphe Nicole.

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LISA Pathfinder proves space-based gravity wave detection technology

8:43 am

Engineers have announced that the gravity wave detection technology being tested in orbit by Europe’s LISA Pathfinder works.

To show that the necessary sensitivity is possible, LISA Pathfinder measures the distance between two masses, both of which are inside the spacecraft. “We’ve shrunk the arm of a large gravitational wave antenna to 35 centimeters so we could show it works properly,” Paul McNamara, LISA Pathfinder project scientist, told the press conference.

LISA Pathfinder was launched in December 2015 to a spot 1.5 million kilometers from Earth. When its test masses where first released to float free in February, “the relief was unbelievable,” McNamara says. Science operations began on 1 March and on that first day the team was able to measure distance variations between the masses much smaller than LISA Pathfinder’s mission requirements, Stefano Vitale, the mission’s principle investigator, told reporters. After a month, the variations were even smaller, “very close to [eLISA] requirements,” he says.

They now hope to launch an array of at least three such spacecraft by the mid-2030s.

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Russia delays next manned Soyuz flight

5:45 pm

Russia has confirmed previous reports and has officially delayed the next manned Soyuz launch to ISS from June 24 to July 7.

They remain vague about the issue causing the delay, this time only saying they want more time to test software. Previous reports suggested the issue was with the capsule’s control thrusters.

Meanwhile, no word on whether they have figured out why the upper stage on the previous Soyuz rocket launch shut down prematurely.

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SpaceX lobbies Texas government for spaceport backing

1:53 pm

The competition heats up: In testimony today before the Texas legislature, a SpaceX official called for more government funding to support the company’s spaceport construction in Boca Chica near Brownsville, Texas.

At a recent joint legislative committee hearing held at UT-Rio Grande Valley in Brownsville, Caryn Schenewerk, senior counsel and director of governmental affairs for SpaceX, pointed out that zero dollars were appropriated to the Texas Spaceport Trust Fund during last year’s legislative session. In contrast, Schenewerk said, Florida commits $20 million a year to its spaceport infrastructure fund.

“One of the things I want to highlight for you is that unfortunately, the spaceport trust fund was not funded in the 84th Legislature and we will certainly be advocating for it to be considered by the 85th and for it to be part of the budget in the 85th Legislature,” Schenewerk testified. “By contrast, Florida consistently funds its space infrastructure fund to a tune of $20 million a year. Those infrastructure matching grants go to exactly the kind of activities that we are undertaking at Boca Chica. They are public-private partnerships for investing specifically in what is so costly an undertaking, the infrastructure.”

Obviously, SpaceX’s spaceport is going to require an increased financial commitment by the state government to build and maintain the increased infrastructure that such large operations require. At the same time, SpaceX doesn’t need a handout. They shouldn’t expect the taxpayers to pay for their private spaceport.

The article does provide some updated information about the spaceport’s construction status. It looks like they are aiming for a 2018 launch date.

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Titan over Saturn’s rings

9:35 am

Titan over Saturn's rings

Cool image time! The picture on the right, taken on January 26, 2016 by Cassini and reduced and cropped to show here, captures Titan above Saturn’s rings, which are themselves partly obscured by the shadow of Saturn (unseen on the right) that falls across them.

Make sure you go to look at the full image. This is the kind of vista that artists in the 1950s imagined we’d see once we began to explore the solar system.

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Astronauts enter privately built BEAM module

8:59 am

Led by American Jeff Williams, two astronauts opened the hatch and entered Bigelow’s BEAM inflatable module on ISS today.

Williams officially opened the hatch at 08:47 UTC. Along with Russian cosmonaut Oleg Skripochka, Williams entered BEAM for the first time to collect an air sample and begin downloading data from sensors on the dynamics of BEAM’s expansion. The astronaut reported that the interior of BEAM looks “pristine”. However, he added the temperature was on the cool side – with Houston adding they recorded 44F as the temperature at bulkhead – but no condensation was visible. He then took air samples, as is the procedure for entering a new module.

They will install interior sensors over the next two days, and then shut the hatch. The module will then remain closed for most of its planned two year stay on ISS to test its operation in space.

The article also includes some nice details about the possible uses of Bigelow’s much larger B330 modules, two of which are under construction right now.

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Why I won’t use Windows

9:05 am

A remote wildlife project in central Africa has been significantly hampered by the unwanted Windows 10 forced upgrades.

The Chinko Project manages roughly 17,600 square kilometres (6,795 square miles) of rainforest and savannah in the east of the CAR, near the border with South Sudan. Money is tight, and so is internet bandwidth. So the staff was more than a little displeased when one of the donated laptops the team uses began upgrading to Windows 10 automatically, pulling in gigabytes of data over a radio link.

And it’s not just bandwidth bills they have to worry about. “If a forced upgrade happened and crashed our PCs while in the middle of coordinating rangers under fire from armed militarized poachers, blood could literally be on Microsoft’s hands,” said one member of the team. “I just came here recently to act as their pilot but have IT skills as well. The guy who set these PCs up didn’t know how to prevent it, or set a metered connection. I am completely livid.”

As I’ve noted before, I have been using Linux for ten years. Though there have been some areas of annoyance (no software is perfect), I have not found myself limited in what I need to do, in any important matter. If you’ve got a spare older computer that you’re not using right now, install Linux on it and play with it. You will soon find that it does everything a Windows machine does, without the crap.

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