Tag: spaceflight

Work stalls on Mars One robotic missions

7:03 pm

Mars One, the company that just this week announced the 100 finalists in its competition to send 24 people on a one-way trip to Mars, has quietly suspended all work on two robotic missions heralded as precursors to that manned mission.

These facts just add weight to my conviction that the Mars One competition is at the moment nothing more than a reality television show. It is a cool idea for a television show, but journalists should stop selling it as anything more than that.

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Stratolaunch airplane 40% complete

9:28 am

The competition heats up: Stratolaunch has revealed that construction of the gigantic airplane — the largest ever to fly — that will take its rockets into the air is now about 40% complete.

The first flight is still scheduled for 2016. The article also includes some good analysis which indicates the competitive problems Stratolaunch faces:

Its Orbital Sciences-supplied solid-fuel rocket will be able to carry 15,000 pounds to low Earth orbit. But this is about half the lift of the competing SpaceX Falcon 9 and just 30 percent that of a Boeing-built Delta IV. Stratolaunch will be able to orbit only smaller satellites.

Nonetheless, watching this mother-ship take off will be quite breath-taking.

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Ceres comes into focus

9:22 am

Ceres as since on February 12, 2015 by Dawn

Cool images! The Dawn science team has released new even sharper images of the giant asteroid Ceres, taken by Dawn on February 12 at a distance of 52,000 miles.

Though the surface appears to have many of the typical craters, scientists continue to be puzzled by the bright spots. This newest image suggests that they are ice-filled craters, but don’t hold me to that guess. For one thing, why are only a handful of craters filled with ice, and none of the others?

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South Korea unveils its own lunar rover

8:57 am

The competition heats up: South Korea has revealed its preliminary design for a lunar rover, set to launch in 2020 on a Korean-built rocket.

The article does not indicate whether this project has actually been approved or is merely being touted by Korea Institute of Science and Technology, which made the announcement. The cost to build it is estimated to be more than $7 billion, which seems quite exorbitant and over-priced.

Update: I had misread the conversion in the article from U.S. to Korean currency and thought the proposed cost for this mission was way more than it really is, which is about $7 million, a much more reasonable number. Thanks to Edward for the correction.

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A television reality show to pick 24 candidates to go to Mars — one way

10:01 am

The competition heats up? The private effort to choose 24 people to make a one-way flight to Mars has narrowed its candidates down from more than two hundred thousand to 100 finalists.

More here.

As interesting as this effort is, it is very important to remember that it is not an effort to fly these people to Mars. They don’t have the money and no one yet has the technical ability to make the flight. What they are actually doing is putting together a television reality show, where these 100 individuals will compete to be the final 24. If they do it right, which I am somewhat doubtful, the show will be entertaining and scientifically educational.

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Europe’s last ATV leaves ISS

9:44 am

Europe’s last ATV cargo freighter for ISS left the station and burned up over the Pacific Ocean this past weekend.

Because of a technical problem on the ATV, a camera designed to record what happened inside the freighter as it burned up during re-entry was removed prior to undocking so that it could be used instead during a later re-entry.

Meanwhile, instead of supplying ISS with cargo, Europe has decided to meet its contribution to ISS by building the service module for NASA’s Orion/SLS program, which has no plans to ever go to ISS. Note, however, that Europe has also not committed to building more than two service modules, so how Orion/SLS will go beyond Earth orbit after these two modules have been launched remains a mystery.

If you are scratching your head at all this, you are not alone. To me, this one decision alone illustrates quite neatly the utter stupidity of big government-run programs.

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SDO celebrates its fifth year in space with a time-lapse of the Sun

9:40 am

Cool images! In celebration of Solar Dynamics Observatory’s fifth year in space observing the Sun, the scientists at the Goddard Space Flight Center have released a time-lapse movie showing the Sun for the past five years.

Video below the fold. It is astonishing and hypnotic. The movie images were taken one image every 8 hours beginning in 2010. If you compare the Sun at the beginning of the movie with the end, you can see the slow shifting of sunspots/flares from higher to equatorial latitudes, as is normal as the solar cycle ramps up to solar maximum and beyond.
» Read more

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Week long movie of Pluto produced by New Horizons

10:28 pm

Cool images! Using New Horizons’ long range camera scientists have compiled a movie showing Charon and Pluto orbiting each other during the last week of January 2015.

Pluto and Charon were observed for an entire rotation of each body; a “day” on Pluto and Charon is 6.4 Earth days. The first of the images was taken when New Horizons was about 3 billion miles from Earth, but just 126 million miles (203 million kilometers) from Pluto—about 30% farther than Earth’s distance from the Sun. The last frame came 6½ days later, with New Horizons more than 5 million miles (8 million kilometers) closer.

The wobble easily visible in Pluto’s motion, as Charon orbits, is due to the gravity of Charon, about one-eighth as massive as Pluto and about the size of Texas.

Our view of Pluto, and Charon, is only going to get better as New Horizons zooms towards its July fly-by.

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Virgin Galactic opens facility for developing LauncherOne

10:20 pm

The competition heats up: Virgin Galactic announced today the establishment of a new facility to design and build the company’s LauncherOne rocket, aimed at putting into orbit very small cubesats at a very low price.

LauncherOne is an air-launch system for satellites weighing up to 225 kilograms. The system will use the same aircraft, WhiteKnightTwo, as the company’s SpaceShipTwo suborbital vehicle, but replaces SpaceShipTwo with a two-stage launch vehicle using engines fueled by liquid oxygen and kerosene.

At the Federal Aviation Administration Commercial Space Transportation Conference Feb. 4, William Pomerantz, vice president of special projects for Virgin Galactic, said the company has already tested engines and other “core infrastructure” of LauncherOne. “We are a fairly vertically-integrated team,” he said. “We really do control a lot of the production in house.”

As the article notes, Virgin Galactic is investing in OneWeb, which hopes to launch a constellation of 650 cubesats to provide broadband communications worldwide. It is likely that a partnership between the two companies exists to put many of those cubesats into orbit with LauncherOne.

This announcement also suggests to me that Virgin Galactic is beginning to shift its gaze from suborbital space tourism to orbital launch services, and in doing so is looking for new ways to make its investment in WhiteKnightTwo pay off.

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Another Falcon 9 launch success

4:14 pm

The competition heats up: A Falcon 9 rocket today successfully put a NASA solar observation satellite into orbit.

They have also said that they have achieved splashdown of the first stage, though no details yet on how soft that splashdown was.

Update: SpaceX reports that “the first stage successfully soft landed in the Atlantic Ocean within 10 meters of its target. The vehicle was nicely vertical and the data captured during this test suggests a high probability of being able to land the stage on the drone ship in better weather.”

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No barge landing attempt today for Falcon 9

2:15 pm

Because of high seas SpaceX will not attempt to land its Falcon 9 first stage on its floating barge today.

The drone ship was designed to operate in all but the most extreme weather. We are experiencing just such weather in the Atlantic with waves reaching up to three stories in height crashing over the decks. Also, only three of the drone ship’s four engines are functioning, making station-keeping in the face of such wave action extremely difficult.

They will still attempt a soft splashdown of the first stage in the ocean.

Though this kind of repeated soft splashdown test is essential to prove their ability to bring the first stage down safely, it certainly isn’t as exciting as landing the first stage on a barge. Nonetheless, in previous attempts they have been unable to get really good video of the soft splashdown. Maybe they will do better this time, though the high seas suggest it won’t be easy.

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Rosetta preps for close fly-by of Comet 67P/C-G

9:12 am

Single frame image

Cool image time! In preparation for a close fly-by of Comet 67P/C-G on Saturday — where it will zip past the comet less than three miles above its surface — Rosetta has eased away to a distance of about 60 miles, allowing its navigation camera to snap its first single frame image since the spacecraft’s initial close approach last summer.

The image brightness has been adjusted to make the plume more obvious. Also, if you look closely at the full resolution version of the image, it is possible to see the dusty material that forms the coma surrounding the nucleus.

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The last two satellites in Russia’s missile warning constellation have failed.

8:55 am

In January the last two satellites in Russia’s ballistic missile warning system shut down, with the first of the next generation replacement constellation not scheduled to launch until June.

“Oko-1 was part of Russia’s missile warning system. The system employed six satellites on geostationary and highly elliptical orbits. The last geostationary satellite got out of order in April last year. The two remaining satellites on highly elliptical orbits could operate only several hours a day. In the beginning of January, they also went out of order,” Kommersant said.

The new generation early warning satellite Tundra was planned to be launched in 2013. However, the launch was postponed several times as the apparatus was not ready to be put into operation, sources in the aerospace industry told the daily.

Increasingly I am reminded of the Cold War, when our competition was the bloated, inefficient, and poorly managed Soviet Union. The communist nation was definitely a threat, as they got a lot accomplished through sheer brute force and determination. Their long term problem was that it was an amazingly inefficient system, guaranteed to eventually fall apart.

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Europe test flies its engineering prototype space plane

8:44 am

The competition heats up: Europe today successfully launched and landed its Intermediate Experimental Vehicle (IXV) space plane.

More details here. And here.

As of 9 pm (Eastern) Wednesday the recovery ship was still “hurrying” to reach the ship, which was being held afloat with “balloons.” Update: The spacecraft has been retrieved.

This prototype is not full scale. It is only about 16 feet long, and was built as a testbed. Whether Europe follows up with a full scale version remains completely unknown. I am skeptical, as this program reminds me of many deadend NASA experimental programs like it, used to try out cool engineering technologies as well as provide pork to Congressional districts without any plans to proceed to the real thing. In the case of IXV, the Italians got most of the pork.

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Weather 90% go for Falcon 9 launch today

9:14 am

The weather looks almost perfect for tonight’s Falcon 9 launch.

The Falcon 9 will put a solar observation satellite into orbit. While many left wing media outlets will wax poetic about this is Al Gore’s satellite, it is hardly that. It might have been built initially under his misguided idea of creating a propaganda satellite to take daily images of the Earth (images that are essentially of little use for climate studies), DSCOVR has been very carefully redesigned to give it a real purpose, monitoring the solar activity of the Sun and providing a replacement/back-up for ACE, which is now more than a decade overdue for replacement.

The Falcon 9 launch will also attempt again to land intact its first stage on a floating barge. If this attempt succeeds the entire future of space travel will be reshaped.

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Plumes and dust surrounding Comet 67P/C-G

11:07 am

Plumes and dust

Cool image time! A new navigation camera mosaic from Rosetta shows both a clear plume rising out of Comet 67P/C-G as well as a “large number of small white blobs and streaks in the image are likely specks of dust or other small objects in the vicinity of the comet.”

The fact that, unlike previously, they did not have to significantly overexpose the image to bring out the plume and dust illustrates the increasing activity at the comet.

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NASA safety panel questions safety of SLS

10:47 am

NASA’s safety panel has issued a report questioning the safety of the early launches of the Space Launch System (SLS), partly due to the very low launch rate and the lack of any planned unmanned test flights for the rocket’s upper stage engine.

“The ASAP and the Agency remain concerned about risks introduced in the currently scheduled frequency of SLS/Orion launches, ” according to ASAP’s 2014 Annual Report. “The plan indicates a launch about every 2 to 4 years. This would challenge ground crew competency. The skills, procedures, and knowledge of conducting the launch, mission, and recovery are perish-able. The ASAP believes that an extended interval requires the relearning of many lessons and skills, in contrast to Apollo and Shuttle, which had a relatively steady cadence.”

No space project can accomplish anything with launch rate this slow. Not only does this increase the risk that inexperience will cause errors, the long time gaps make it difficult for the project to get anything done.

And then there is NASA’s idea that it can put humans on this rocket without any previous launch testing of the rocket’s upper stage or the capsule’s life support systems. Why should NASA’s rocket get a pass on this kind of testing when the agency is demanding that the private companies do it?

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Rocket tank lands on Brazil farm

10:26 am

Chicken Little report: A propellent tank from an as-yet unidentified rocket landed near a house on a Brazilian farm on December 28.

The pictures at the link are neat, especially since the man in the selfie showing the farmer’s family and the tank in the background looks so much like New Jersey governor Chris Christie.

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OSIRIS-REx to get more fuel for its asteroid mission

10:17 am

In what might be a first for the planetary science/engineering community, an unmanned probe, being built to bring samples back from the asteroid Bennu, is turning out to be lighter than expected, thus allowing engineers to stuff its tanks with extra fuel to extend its mission.

The OSIRIS-REx spacecraft, being built at a Lockheed Martin facility in Denver, is coming in lighter than the lift capability of the Atlas 5 rocket, which will lift off in its “411” configuration with a four-meter payload fairing, a single-engine Centaur upper stage, and one strap-on solid rocket booster.

The proposal — described as a “heavy launch option” — would add an extra 341 pounds of fuel to the spacecraft’s fuel tank.

Planetary probes never end up lighter than planned, at least until now. During construction scientists have always found it impossible to resist adding more instruments or capabilities, and thus engineers always struggle to get the spacecraft built within its weight budget. For OSIRIS-REx to have this wonderful problem is surely astonishing.

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Five years later a second attempt to put a Japanese spacecraft into Venus orbit

9:55 am

If at first: After failing to place its Akatsuki spacecraft into orbit around Venus in 2010 because of a cracked engine nozzle, Japan has announced its plans for a new attempt later this year.

The attempt will be made on December 7. If successful, the spacecraft will begin studying Venus’s climate and atmosphere only a short time after the end of Europe’s very success Venus Express mission.

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