Author: Robert Zimmerman

NASA awards 14 companies small development contracts

8:29 am

Capitalism in space: NASA yesterday announced the issuing of fourteen small contracts totaling $43.2 million to a variety of big and small new space commercial companies, all aimed at developing technology for exploring the solar system.

The link has a detailed list, which includes Blue Origin and SpaceX, though most of the companies are relatively unknown.

NASA’s public statements in connection with these awards suggest they are support for Artemis, but that’s not true as is merely being done to sell Artemis, falsely. As designed these contracts will do more to accelerate the alternatives to Artemis. For example, the contract to SpaceX is “to develop and test coupler prototypes – or nozzles – for refueling spacecraft such as the company’s Starship vehicle.” Similarly, the contract to the small company ExoTerra will

build, test and launch a 12-unit CubeSat with a compact, high impulse solar electric propulsion module. Once flight-ready, the system will be demonstrated in-space as the CubeSat moves from low-Earth orbit to the radiation belts surrounding Earth. This small electric propulsion system could open up the inner solar system for targeted science exploration missions, using affordable spacecraft that range from 44 to 440 pounds.

Both might be applicable to Artemis, but won’t be, as NASA’s SLS, Orion, and Gateway contractors are likely uninterested in such things. Moreover, these technologies will be owned by the companies developing them, as the contracts are designed like the Space Act Agreements that fueled the Dragon and Cygnus commercial cargo capsules. The companies are to pay 25% of the cost, and then get to keep whatever is developed. NASA in turn gets access to this new technology, almost all of which appears designed to encourage alternatives to Artemis.

0 comments

Planet X a small black hole?

8:13 am

In one of the wilder theories attempting to explain the orbits of the outer objects found beyond Neptune, two physicists have proposed that the reason Planet X has not been located is because it might be a small black hole.

Previous studies have suggested Planet Nine, which some astronomers refer to as “Planet X,” has a mass between five and 15 times that of Earth and lies between 45 billion and 150 billion kilometers from the sun. At such a distance, an object would receive very little light from the sun, making it hard to see with telescopes.

To detect objects of that mass, whether planets or black holes, astronomers can look for weird blobs of light formed when light “bends” around the object’s gravitational field on its journey through the galaxy (simulated image above). Those anomalies would come and go as objects move in front of a distant star and continue in their orbit.

But if the object is a planet-mass black hole, the physicists say, it would likely be surrounded by a halo of dark matter that could stretch up to 1 billion kilometers on every side. And interactions between dark matter particles in that halo—especially collisions between dark matter and dark antimatter—could release a flash of gamma rays that would betray the object’s presence, the researchers propose in a forthcoming paper posted on the preprint server arXiv.

Anything is possible, but some things are certainly less likely than others. If these scientists turn out to be right, however, they will have achieved one of the biggest coups in the history of science.

And yes, the undiscovered planet out there should be referred to as “Planet X”, not “Planet Nine.” Not only is Pluto a planet, so are a lot of other objects in the solar system that up to recently were not considered so.

2 comments

LRO scientists release image of Vikram landing site

10:28 am

Overview of Vikram landing area
Click for full image.

The Lunar Reconnaissance Orbiter (LRO) science team yesterday released their high resolution image taken of the area where it is believed India’s lunar lander Vikram crashed.

The image to the right is not that image, but an oblique overview showing where that landing region is, the center of which is indicated by the white cross. Vikram was aiming for this flat region between the Simpelius N and Manzinus C craters.

In releasing the image, the scientists explained what they thought were the reasons they have so far failed to find Vikram.

We note that it was dusk when the landing area was imaged and thus large shadows covered much of the terrain, perhaps the Vikram lander is hiding in a shadow. The lighting will be favorable when LRO passes over the site in October and LROC will attempt to image the lander at that time.

You can explore the actual image at the link. It is quite large, though their viewer there allows you to zoom in and move about, inspecting each grid area very closely. As they note, there are a lot of shadowed areas.

LRO’s high resolution camera can see objects as small as Vikram, even if broke up somewhat on landing. The key for discovery will be timing. LRO will have to pass over at a time when the lander is not in shadow.

UPDATE: Below the fold is a side-by-side comparison of this region, with mid-day on the left and the dusk LRO image on the right, created by Rex Ridenoure of Ecliptic Enterprises.and graciously provided to me.
» Read more

1 comment

Stratolaunch has begun hiring again

10:09 am

Capitalism in space: After a retrenchment where the company trimmed its staff last year, Stratolaunch has now begun hiring again.

Allen founded the venture in 2011, with the goal of using what is now the world’s largest airplane as a flying launch pad for orbital-class rockets and space planes. But after his death at the age of 65, Stratolaunch trimmed its staff dramatically. Some saw April’s test flight at California’s Mojave Air and Space Port as primarily a tribute to Allen, and as the prelude to either a sale or a shutdown.

Representatives of the Allen family’s Vulcan holding company have insisted that Stratolaunch remains operational. LinkedIn listings indicate that Jean Floyd is still president and CEO, although three company vice presidents left in July.

Now Stratolaunch is posting 11 job openings, including listings for two test pilots. “As a test pilot on the history-making Stratolaunch Carrier Aircraft, the world’s largest-wingspan aircraft, you will have the opportunity to accomplish new milestones in aviation,” the company says. The pilot positions are among nine openings in Mojave, with two openings (for a purchasing agent and a contract specialist) based in Seattle.

It however remains unclear the exact manner in which their giant plane Roc will be used. So far there appears little interest in using it, in conjunction with Northrop Grumman’s Pegasus rocket, to launch satellites. It could be that the plane might instead be used in connection with ground-based operations.

4 comments

A big planet circling a small star

10:03 am

The uncertainty of science: In contradiction of every existing stellar and planetary formation model, astronomers have found a half-sized Jupiter exoplanet orbiting a tiny red dwarf star.

The red dwarf GJ 3512 is located 30 light-years from us. Although the star is only about a tenth of the mass of the Sun, it possesses a giant planet – an unexpected observation. “Around such stars there should only be planets the size of the Earth or somewhat more massive Super-Earths,” says Christoph Mordasini, professor at the University of Bern and member of the National Centre of Competence in Research (NCCR) PlanetS: “GJ 3512b, however, is a giant planet with a mass about half as big as the one of Jupiter, and thus at least one order of magnitude more massive than the planets predicted by theoretical models for such small stars.”

It appears the universe does not care what this and other scientists think “should” happen. The universe will do what the universe wants to do.

This discovery only underlines how little we understand of the formation of stars and their solar system. Be prepared for many more like surprises in the coming decades and centuries.

0 comments

More Starship teasers from Musk

9:57 am

Musk continues to tweet out tiny teasers about the construction and design of the first Starship prototype being built at Boca Chica, dubbed Mk1.

[T]his prototype — the second Starship test vehicle, after the single-engine Starhopper, which was retired last month — will stand 165 feet (50 meters) tall and weigh 1,400 tons when fueled up (and 200 tons when “dry”). But that weight should come down in subsequent iterations, Musk added. “Mk1 ship is around 200 tons dry & 1400 tons wet, but aiming for 120 by Mk4 or Mk5. Total stack mass with max payload is 5000 tons,” he said in one of yesterday’s tweets.

In another tweet, Musk revealed the number of landing legs the Mk1 will have: “Six. Two windward, one under each fin & two leeward. Provides redundancy for landing on unimproved surfaces.”

Musk has previously said that the Mk1 and the Mk2 — a similar prototype being built at SpaceX’s Florida facilities — will be powered by at least three of the company’s next-generation Raptor engines. And today (Sept. 26), he tweeted three photos showing what that three-engine alignment looks like.

Both the Mk1 and Mk2 will start out making suborbital flights, but the goal is to get them to orbit eventually, Musk has said.

He will be giving a major speech on Starship tomorrow at Boca Chica. I have not been able to find any information as yet detailing the time and where to watch, but this will come clear I am sure very soon.

9 comments

Adventures in TSA fantasyland

1:01 pm

Another airplane journey, another idiotic example of the stupidity of the Transportation Security Agency (TSA).

I am in the airport in Panama City, Florida, waiting for my flight home. As I was putting my shoes and belt back on at the security conveyor belt, I watched as an older couple was having their carry-on bags opened and inspected. The woman was wearing an Islamic scarf. (Despite this I am sure neither posed any threat, because both were somewhat elderly, and had been given passes that I think signified this, since anyone over 75 years old is allowed to keep shoes and belts on.)

What was amazing to me was what happened when the TSA officer discovered that the women had brought a take-out lunch with her, as well as a full set of metal silverware to eat it. The officer hardly glanced at silverware, seeming more interested in her lunch in a plastic food container. While he inspected this the woman put the silverware back in her purse, and after the officer was satisfied that the take-out food was not dangerous, he allowed them to leave, silverware and all.

As they left I was right there, putting my wallet and keys back in my pockets, with that officer only about two feet away. I couldn’t help it. I said, “Excuse me, it is now permissible to bring metal silverware, forks, knives, so forth, on an airplane?”
» Read more

37 comments

Curiosity to use first of nine “wet chemistry cups”

9:25 am

two drill holes in clay layer
Click for full image.

The Curiosity science team has decided to use the first of its nine “wet chemistry cups” to test a recently obtained Martian drill sample for organic material.

Searching for organic molecules in rocks on Mars is no easy task. Curiosity’s Sample Analysis at Mars (SAM) instrument is designed to analyze the chemical composition of gases, which it creates by slowly heating rock samples in an oven. The volatile gases that are driven off the heated rock sample get sent to SAM’s gas chromatograph and mass spectrometer (GCMS), which can identify the different gaseous compounds. However, organic molecules are tough to detect with this technique, because instead of transforming straight into gases when heated, they can decompose into simpler molecules.

But if organic molecules are “derivatized” before they’re heated – meaning that they react with other chemicals first in order to become more volatile – then the compounds are more likely to enter the GCMS without breaking down, and SAM has a better chance of detecting them. This derivatization process uses solvents of chemicals, so we call it a “wet chemistry” experiment. Curiosity only has nine cups containing these solvents, so we are careful to save our wet chemistry experiments for only the most interesting rock samples.

The “Glen Etive” site, which we have been studying for the past month, is enticing enough for this special experiment!

They are performing this operation today. This is a big deal, because they only have nine of these cups. They have been saving them for the right time, and when the drill had problems two years ago and looked for awhile like it would never work again, they were horrified at the possibility they would never get to use them at all. While I would not be surprised if NASA issues a press release today touting this decision, do not expect any announcement of results for quite awhile, as I suspect the scientists in charge will want to publish their paper on the subject first.

This location, in the clay unit in the foothills of Mount Sharp, is a spot where they have drilled twice, as shown by the two drill holes visible near the center of the the picture above.

0 comments

More delays for New Shepard

8:47 am

Capitalism in space: Bob Smith, the CEO of Blue Origin, revealed this week that the first manned flights of its reusable suborbital New Shepard spacecraft will likely not happen in 2019, as previously announced.

Blue Origin, which is headquartered in Kent, Wash., has filed plans with the Federal Communications Commission for at least two more New Shepard test flights from its test and launch facility in West Texas. These would be the 12th and 13th flights of the New Shepard test program.

On Tuesday, Blue Origin sought reauthorization of the next test flight for a six-month period running from Nov. 1 to next May. The existing authorization is set to expire on Dec. 1, which suggests that the company wants to reserve more time to prepare for the test.

Whether those next two test flights will use the capsule they have flown previously, or a new capsule, dubbed “RSS First Step”, that they intend to put the first people on, could determine how much of a delay to expect. That new capsule is built but it has never flown. If the next two flights use the previous test capsule, this would guarantee even more delays before Blue Origin flies people.

8 comments

Soyuz launches military surveillance satellite

8:24 am

Russia today completed its second Soyuz launch in twenty-four hours, launching the third in a constellation of military satellites designed to detect incoming missiles.

With this launch Russia has topped its total from 2018, and looks very likely finish the year with the most launches since 2016.

The leaders in the 2019 launch race:

18 China
16 Russia
10 SpaceX
6 Europe (Arianespace)

The U.S. continues to lead China 19 to 18 in the national rankings.

0 comments

UK company buys space on Astrobotic’s first lunar lander

7:28 am

Capitalism in space: Spacebit, a United Kingdom company, has signed a deal to put an instrument on Astrobotic’s first lunar lander, Peregrine-1, set for launch by 2021.

Astrobotic was one of the three private companies awarded NASA contracts to build unmanned lunar landers to carry NASA instruments to the Moon. In addition, these companies could sell additional space to other private companies. According to the press release, Astrobotic already has a manifest of sixteen such contracts.

0 comments

Proton commercial launch delayed

7:17 am

One of the last few commercial launches for Russia’s Proton rocket has been delayed because the satellite “was not attached correctly to the upper stage.”

This is likely not as serious a blunder as the story makes it sounds. They had detected some “electromagnetic interference” in the upper stage’s control system during prechecks, which suggests a wire got crossed somewhere.

2 comments

Three launches today, including launch of three astronauts and UAE’s first spaceman

7:09 am

Three launches today, by China, Japan, and Russia. China launched a Yunhai-1 weather satellite using its Long March 2D rocket. Japan in turn successfully launched, on its second attempt, its HTV cargo freighter to ISS. This was Japan’s second launch this year.

Finally, Russia has just successfully put three astronauts into orbit using its Soyuz rocket, including the first astronaut of the United Arab Emirates.

The leaders in the 2019 launch race:

18 China
15 Russia
10 SpaceX
6 Europe (Arianespace)

The U.S. lead over China in the national rankings is now 19 to 18.

0 comments

LauncherOne shipped to Mohave for launch prep

6:55 am

Capitalism in space: Virgin Orbit has shipped its first LauncherOne rocket to Mohave for final tests prior to its first launch, planned for sometime this year.

Virgin Orbit didn’t give a schedule for completing those tests and performing that orbital flight. Dan Hart, president and chief executive of Virgin Orbit, said at the World Satellite Business Week conference in Paris Sept. 11 that he expected those final tests be completed in a matter of weeks. “It will take a handful of weeks to get through a number of wet dress rehearsals, crew training, and verification of the system,” he said. “We’ll do one flight test with that rocket and then we’ll get to orbit.” He estimated the company would be ready for launch “in the middle of this fall.”

If that first orbital test flight is successful, they hope to do their first operational commercial launch before the end of the year.

My 2016 prediction that a LauncherOne will complete its first commercial launch before SpaceShipOne, continues to look likely, even though SpaceShipOne began development more than a decade before LauncherOne..

1 comment
1 … 725 726 727 728 729 … 1,760