Tag: engineering
LADEE hits the moon.
The crashes that changed aviation and plane designs forever.
The crashes that changed aviation and plane designs forever.
Like the 1964 Alaska earthquake, sometimes bad things have to happen to force humans to face a problem and fix it.
The crashes that changed aviation and plane designs forever.
Like the 1964 Alaska earthquake, sometimes bad things have to happen to force humans to face a problem and fix it.
Russia is accelerating construction of its new spaceport in Vostochny.
The competition heats up: Russia is accelerating construction of its new spaceport in Vostochny.
The schedule doesn’t appear to have been pushed up, with the first launch still set for 2015, but they are going to initiate a second shift, and will have monthly meeting with the government to monitor progress. Under the top-down Russian way of doing things, this is how they make sure their high priority projects get finished on time and successfully.
The competition heats up: Russia is accelerating construction of its new spaceport in Vostochny.
The schedule doesn’t appear to have been pushed up, with the first launch still set for 2015, but they are going to initiate a second shift, and will have monthly meeting with the government to monitor progress. Under the top-down Russian way of doing things, this is how they make sure their high priority projects get finished on time and successfully.
Sierra Nevada is planning additional glide tests in the fall. using its Dream Chaser engineering test vehicle.
The competition heats up: Sierra Nevada is planning additional glide tests in the fall. using its Dream Chaser engineering test vehicle.
This is the same test vehicle that crashed last October during its first glide test when one landing gear failed to deploy properly. The glide test itself was a success however, as the vehicle did a controlled unmanned glide perfectly to the runway, and the failed landing gear was one that the spacecraft will not use once completed.
Note also that these announced flight tests will occur after NASA eliminates one of the companies competing for the final crew ferrying contract to ISS. This suggests that Sierra Nevada plans to continue development of Dream Chaser, regardless of whether they get the contract or not.
The competition heats up: Sierra Nevada is planning additional glide tests in the fall. using its Dream Chaser engineering test vehicle.
This is the same test vehicle that crashed last October during its first glide test when one landing gear failed to deploy properly. The glide test itself was a success however, as the vehicle did a controlled unmanned glide perfectly to the runway, and the failed landing gear was one that the spacecraft will not use once completed.
Note also that these announced flight tests will occur after NASA eliminates one of the companies competing for the final crew ferrying contract to ISS. This suggests that Sierra Nevada plans to continue development of Dream Chaser, regardless of whether they get the contract or not.
Crowd-funding the engineering and money to bring a 1970s NASA space probe back to life.
Crowd-funding the engineering and money to bring a 1970s NASA space probe back to life.
More here.
The idea is brilliant. The probe, ISEE-3, has functioning instruments. It just hasn’t been operated since the 1980s. If they can get the funds to pay for the effort, they will provide scientists a space probe for pennies.
Crowd-funding the engineering and money to bring a 1970s NASA space probe back to life.
More here.
The idea is brilliant. The probe, ISEE-3, has functioning instruments. It just hasn’t been operated since the 1980s. If they can get the funds to pay for the effort, they will provide scientists a space probe for pennies.
NASA has officially handed control of launchpad 39A to SpaceX, where the company intends to launch its Falcon Heavy.
NASA has officially handed control of launchpad 39A to SpaceX, where the company intends to launch its Falcon Heavy.
The agreement turns over control of Launch Complex 39A to the commercial space transportation firm, which plans to use the launch pad for the the initial flights of the Falcon Heavy, a mega-rocket featuring 27 first stage engines generating nearly 4 million pounds of thrust at liftoff.
Pad 39A was the starting point for many historic Apollo and space shuttle missions, including the Apollo 11 moon landing in 1969 and the first and last shuttle launches in 1981 and 2011.
“We’ll make great use of this pad, I promise,” said Gwynne Shotwell, president of SpaceX, in remarks to the media moments after signing the lease. “We’ve had architects and our launch site engineering [team] working for many months on the sidelines. We will launch the Falcon Heavy from here first — from this pad — early next year.” [emphasis mine]
The highlighted quote reveals a key fact. Until recently SpaceX had been claiming that it will do its first demo launch of Falcon Heavy in 2014. This quote confirms that this schedule is not happening.
NASA has officially handed control of launchpad 39A to SpaceX, where the company intends to launch its Falcon Heavy.
The agreement turns over control of Launch Complex 39A to the commercial space transportation firm, which plans to use the launch pad for the the initial flights of the Falcon Heavy, a mega-rocket featuring 27 first stage engines generating nearly 4 million pounds of thrust at liftoff.
Pad 39A was the starting point for many historic Apollo and space shuttle missions, including the Apollo 11 moon landing in 1969 and the first and last shuttle launches in 1981 and 2011.
“We’ll make great use of this pad, I promise,” said Gwynne Shotwell, president of SpaceX, in remarks to the media moments after signing the lease. “We’ve had architects and our launch site engineering [team] working for many months on the sidelines. We will launch the Falcon Heavy from here first — from this pad — early next year.” [emphasis mine]
The highlighted quote reveals a key fact. Until recently SpaceX had been claiming that it will do its first demo launch of Falcon Heavy in 2014. This quote confirms that this schedule is not happening.
China’s president calls for the increased military use of that country’s space assets.
China’s president calls for the increased military use of that country’s space assets.
The article itself is not very informative, other than noting these comments. In fact, it has some errors that suggest the writer knows very little about China’s space effort, both civilian or military.
Nonetheless, China’s president did make this statement, which tells us that it is definitely Chinese policy. Not good.
China’s president calls for the increased military use of that country’s space assets.
The article itself is not very informative, other than noting these comments. In fact, it has some errors that suggest the writer knows very little about China’s space effort, both civilian or military.
Nonetheless, China’s president did make this statement, which tells us that it is definitely Chinese policy. Not good.
SpaceX has positioned recovery crews in the Atlantic in an effort to retrieve the Falcon 9 first stage after its upcoming launch, now set for Friday.
SpaceX has positioned recovery crews in the Atlantic in an effort to retrieve the Falcon 9 first stage after its upcoming launch, now set for Friday.
SpaceX has positioned recovery crews in the Atlantic in an effort to retrieve the Falcon 9 first stage after its upcoming launch, now set for Friday.
European satellite operators are pressing Arianespace to find ways to immediately reduce the cost of launching satellites on now Ariane 5 and in the future on Ariane 6.
European satellite operators are pressing Arianespace to find ways to immediately reduce the cost of launching satellites on now Ariane 5 and in the future on Ariane 6.
And why are they doing this? To quote them:
“What is sure is that Europe deserves and requires a [reorganized launcher sector] ahead of 2019, the letter says. “[C]onsiderable efforts to restore competitiveness in price of the existing European launcher need to be undertaken if Europe is [to] maintain its market situation.
“In the short term, a more favorable pricing policy for the small satellites currently being targeted by SpaceX seems indispensable to keeping the Ariane launch manifest strong and well-populated.” [emphasis mine]
It seems that they take very seriously the competitive challenge being presented by SpaceX.
European satellite operators are pressing Arianespace to find ways to immediately reduce the cost of launching satellites on now Ariane 5 and in the future on Ariane 6.
And why are they doing this? To quote them:
“What is sure is that Europe deserves and requires a [reorganized launcher sector] ahead of 2019, the letter says. “[C]onsiderable efforts to restore competitiveness in price of the existing European launcher need to be undertaken if Europe is [to] maintain its market situation.
“In the short term, a more favorable pricing policy for the small satellites currently being targeted by SpaceX seems indispensable to keeping the Ariane launch manifest strong and well-populated.” [emphasis mine]
It seems that they take very seriously the competitive challenge being presented by SpaceX.
Today’s launch of Dragon to ISS has been scrubbed due to “a helium leak in Falcon 9’s first stage.”
Today’s launch of Dragon to ISS has been scrubbed due to “a helium leak in Falcon 9’s first stage.”
SpaceX also says they will be ready to launch by April 18, their next launch window.
Today’s launch of Dragon to ISS has been scrubbed due to “a helium leak in Falcon 9’s first stage.”
SpaceX also says they will be ready to launch by April 18, their next launch window.
Want to watch today’s SpaceX launch and tonight’s lunar eclipse? Here’s how?
Want to watch today’s SpaceX launch and tonight’s lunar eclipse? Here’s how?
Want to watch today’s SpaceX launch and tonight’s lunar eclipse? Here’s how?
The backup computer that helps operate ISS’s robot arms is not responding to commands.
The backup computer that helps operate ISS’s robot arms is not responding to commands.
The timing could not be worse.. Though the number one computer is functioning fine, this unit is essential for controlling the robot arm that will berth Dragon to ISS this week.
Side note: The article above described this problem in its headlines as a “glitch.” I despise this word, as it is generally used by government bureaucrats to minimize the seriousness of a failure. The Soviet era bureaucrats in Russia loved it. I have noticed it popping up in American news reports relating to space more and more, and it is never a very accurate description of the situation. This computer failure is not a “glitch,” it is a serious failure of an essential piece of hardware.
Update: Because a spacewalk will be required to fix the backup computer, NASA has okayed the launch of Dragon. They need it to arrive first because it carries a new spacesuit and other parts needed to replace the suit that almost drowned an astronaut during a spacewalk last summer.
Note: I was in the back country of Arizona this past weekend, caving, which is why I am only now getting up to speed on this weekend’s news.
The backup computer that helps operate ISS’s robot arms is not responding to commands.
The timing could not be worse.. Though the number one computer is functioning fine, this unit is essential for controlling the robot arm that will berth Dragon to ISS this week.
Side note: The article above described this problem in its headlines as a “glitch.” I despise this word, as it is generally used by government bureaucrats to minimize the seriousness of a failure. The Soviet era bureaucrats in Russia loved it. I have noticed it popping up in American news reports relating to space more and more, and it is never a very accurate description of the situation. This computer failure is not a “glitch,” it is a serious failure of an essential piece of hardware.
Update: Because a spacewalk will be required to fix the backup computer, NASA has okayed the launch of Dragon. They need it to arrive first because it carries a new spacesuit and other parts needed to replace the suit that almost drowned an astronaut during a spacewalk last summer.
Note: I was in the back country of Arizona this past weekend, caving, which is why I am only now getting up to speed on this weekend’s news.
Scaled Composites has posted the logs for several successful engine test results on its webpage.
Some real news about SpaceShipTwo: Scaled Composites has posted the logs for several successful engine test results on its webpage.
The information is sparse, but it suggests that these tests are attempts to run the engine through a full simulated flight.
Some real news about SpaceShipTwo: Scaled Composites has posted the logs for several successful engine test results on its webpage.
The information is sparse, but it suggests that these tests are attempts to run the engine through a full simulated flight.
Houston yesterday signed a letter of intent with Sierra Nevada to provide the company a home at that city’s proposed spaceport.
The competition heats up: Houston yesterday signed a letter of intent with Sierra Nevada to provide the company a home at that city’s proposed spaceport.
The competition here is not from the spaceship company but from the spaceport. Houston is in a race with Colorado and Florida for the launch business. In fact, it appears that a lot of American cities are scrambling to attract the new aerospace launch companies, suggesting that they all see a new industry aborning and want their share.
Another example: The California legislature has passed a ten year tax exemption for spaceflight companies.
The competition heats up: Houston yesterday signed a letter of intent with Sierra Nevada to provide the company a home at that city’s proposed spaceport.
The competition here is not from the spaceship company but from the spaceport. Houston is in a race with Colorado and Florida for the launch business. In fact, it appears that a lot of American cities are scrambling to attract the new aerospace launch companies, suggesting that they all see a new industry aborning and want their share.
Another example: The California legislature has passed a ten year tax exemption for spaceflight companies.
An update on China’s lunar rover Yutu.
An update on China’s lunar rover Yutu.
This is an excellent summary of the mission and its status, including detailed maps outlining the rover’s path before it finally lost the ability to move.
An update on China’s lunar rover Yutu.
This is an excellent summary of the mission and its status, including detailed maps outlining the rover’s path before it finally lost the ability to move.
An award winning science teacher was suspended when an unnamed school employee thought two student science projects looked too much like weapons.
Idiocracy: An award winning science teacher was suspended when an unnamed school employee thought two student science projects looked too much like weapons.
Schiller got into trouble after two of his students turned in science projects designed to shoot little projectiles, reports the Los Angeles Times. One of the projects used compressed air (but was not actually connected to any air). The other one was coil gun: a tube surrounded by a coil and powered by a standard AA battery.
An unidentified school employee saw the air-pressure projectile device and got scared because, to her, it looked like a fearsome weapon. The amount of knowledge the employee has concerning science – if any – is unclear.
As a result of the unnamed employee’s fears, Schiller – who actually never got to see either the air-pressure project or the coil project except in photos – was dismissed from the classroom indefinitely. School officials impounded both projects as “evidence,” according to the mother of the kid who did the coil project.
Why am I reminded of this movie scene?
» Read more
Idiocracy: An award winning science teacher was suspended when an unnamed school employee thought two student science projects looked too much like weapons.
Schiller got into trouble after two of his students turned in science projects designed to shoot little projectiles, reports the Los Angeles Times. One of the projects used compressed air (but was not actually connected to any air). The other one was coil gun: a tube surrounded by a coil and powered by a standard AA battery.
An unidentified school employee saw the air-pressure projectile device and got scared because, to her, it looked like a fearsome weapon. The amount of knowledge the employee has concerning science – if any – is unclear.
As a result of the unnamed employee’s fears, Schiller – who actually never got to see either the air-pressure project or the coil project except in photos – was dismissed from the classroom indefinitely. School officials impounded both projects as “evidence,” according to the mother of the kid who did the coil project.
Why am I reminded of this movie scene?
» Read more
Richard Branson manipulates the press again
Two stories today from Richard Branson of Virgin Galactic:
- Richard Branson is “90 percent” certain they will launch passengers in 2014
- Richard Branson launches search for the child who inspired him to found Virgin Galactic
The quote from the first story is especially entertaining:
» Read more
India’s Mangalyaan Mars orbiter is now halfway to Mars.
India’s Mangalyaan Mars orbiter is now halfway to Mars.
India, unlike Israel, wants to conquer the stars, so the success of their first interplanetary mission means a lot to them.
India’s Mangalyaan Mars orbiter is now halfway to Mars.
India, unlike Israel, wants to conquer the stars, so the success of their first interplanetary mission means a lot to them.
XCOR today took delivery of the cockpit assembly of its Lynx suborbital space plane.
The competition heats up: XCOR today took delivery of the cockpit assembly of its Lynx suborbital space plane.
They have said they will begin flight tests later this summer, followed by tourist suborbital flights at some point thereafter.
The competition heats up: XCOR today took delivery of the cockpit assembly of its Lynx suborbital space plane.
They have said they will begin flight tests later this summer, followed by tourist suborbital flights at some point thereafter.
A Russian Progress freighter successfully docked with ISS on Wednesday, rendezvousing with the station using the fast track approach of six hours.
A Russian Progress freighter successfully docked with ISS on Wednesday, rendezvousing with the station using the fast track approach of six hours.
A Russian Progress freighter successfully docked with ISS on Wednesday, rendezvousing with the station using the fast track approach of six hours.
Congress and NASA administrator Charles Bolden battled over ISS, Russia, crew transport, and commercial space yesterday in a hearing before Congress.
Congress and NASA administrator Charles Bolden battled over ISS, Russia, crew transport, and commercial space yesterday in a hearing before Congress.
Not surprising. Congress wants to know what NASA will do if Russia pulls out of ISS and Bolden really has few options if they do. He in turn was trying to get Congress to focus on funding commercial space so that we can launch our own astronauts to ISS and not depend on the Russians. A true confederacy of dunces. More here.
Congress and NASA administrator Charles Bolden battled over ISS, Russia, crew transport, and commercial space yesterday in a hearing before Congress.
Not surprising. Congress wants to know what NASA will do if Russia pulls out of ISS and Bolden really has few options if they do. He in turn was trying to get Congress to focus on funding commercial space so that we can launch our own astronauts to ISS and not depend on the Russians. A true confederacy of dunces. More here.
According to the deputy head of Russia’s space agency, they are not planning any retaliatory sanctions against NASA.
According to the deputy head of Russia’s space agency, they are not planning any retaliatory sanctions against NASA.
Whew! That’s a relief.
Seriously, I never expected them to do anything, as the sanctions NASA has imposed, excluding ISS, are so minor that they mean nothing to Russia. The only people NASA really hopes will react to these sanctions are Congressmen and Senators when they realize how dependent we are on the Russians to get to space.
According to the deputy head of Russia’s space agency, they are not planning any retaliatory sanctions against NASA.
Whew! That’s a relief.
Seriously, I never expected them to do anything, as the sanctions NASA has imposed, excluding ISS, are so minor that they mean nothing to Russia. The only people NASA really hopes will react to these sanctions are Congressmen and Senators when they realize how dependent we are on the Russians to get to space.
Curiosity catches a mysterious flash of light on the Martian horizon.
Curiosity catches a mysterious flash of light on the Martian horizon.
Be assured, despite what some reports are suggesting, it isn’t an alien flashing a mirror at us. The top theory now is that Curiosity caught a reflection off a “glinty” rock.
Curiosity catches a mysterious flash of light on the Martian horizon.
Be assured, despite what some reports are suggesting, it isn’t an alien flashing a mirror at us. The top theory now is that Curiosity caught a reflection off a “glinty” rock.
Triumph of his will: Elon Musk’s effort to build a rocket company.
Triumph of his will: Elon Musk’s effort to build a rocket company.
The article is long, providing incredible background details on Elon Musk’s life and how he got to be the world’s most famous rocket company president. Definitely worth a read.
Triumph of his will: Elon Musk’s effort to build a rocket company.
The article is long, providing incredible background details on Elon Musk’s life and how he got to be the world’s most famous rocket company president. Definitely worth a read.
A detailed look at Russia’s new Angara rocket family.
A detailed look at Russia’s new Angara rocket family.
A detailed look at Russia’s new Angara rocket family.
An incredible collection of photos from the Edwards Air Force Base 2009 open house air show.
An incredible collection of photos from the Edwards Air Force Base 2009 open house air show.
It includes close-ups of Scaled Composites’ WhiteKnight motherships for SpaceShips One and Two.
An incredible collection of photos from the Edwards Air Force Base 2009 open house air show.
It includes close-ups of Scaled Composites’ WhiteKnight motherships for SpaceShips One and Two.
Boeing is about to begin environmental tests on a new composite fuel tank for rockets.
The competition heats up: Boeing is about to begin environmental tests on a new composite fuel tank for rockets.
Tanks made of composite materials have been a dream of space engineers for decades. Lockheed Martin tried to build them for the X-33, and their failure was essentially what killed that spacecraft. If Boeing is successful here and the composite tanks can then be put into a variety of launch rockets, the savings in weight will lower the cost of getting payloads to orbit significantly.
The competition heats up: Boeing is about to begin environmental tests on a new composite fuel tank for rockets.
Tanks made of composite materials have been a dream of space engineers for decades. Lockheed Martin tried to build them for the X-33, and their failure was essentially what killed that spacecraft. If Boeing is successful here and the composite tanks can then be put into a variety of launch rockets, the savings in weight will lower the cost of getting payloads to orbit significantly.
As the NASA lunar probe LADEE nears its planned end — where it will crash onto the Moon — the scientists running it admit that they have as yet been unable to solve its primary scientific question about levitating lunar dust.
As the NASA lunar probe LADEE nears its planned end — where it will crash onto the Moon — the scientists running it admit that they have as yet been unable to solve its primary scientific question about levitating lunar dust.
A major goal of the mission was to understand a bizarre glow on the Moon’s horizon, spotted by Apollo astronauts just before sunrise. “So far we haven’t come up with an explanation for that,” project scientist Rick Elphic, of NASA’s Ames Research Center in Moffett Field, California, said at a media briefing on 3 April. One leading idea is that the Sun’s ultraviolet rays cause lunar dust particles to become electrically charged. That dust then lofts upwards, forming a cloud that caught the light and the astronauts’ eyes.
LADEE carries an instrument that measures the impact of individual dust particles, as well as the collective signal from smaller particles. Lunar scientists had expected a certain amount of tiny dust to explain what the Apollo astronauts saw. But LADEE didn’t find it. “We did measure a signal that indicates that the amount of lofted dust has to be at least two orders of magnitude below the expectations that were based on the Apollo reports,” says Mihály Horányi, the instrument’s principal investigator, who is at the University of Colorado. Perhaps the dust lofting happens only occasionally, he suggests, and the astronauts were in just the right place at the right time to see it.
This remains an important question. Knowing what caused that horizon glow and knowing how often it occurs is essential knowledge for any future lunar base or research station.
As the NASA lunar probe LADEE nears its planned end — where it will crash onto the Moon — the scientists running it admit that they have as yet been unable to solve its primary scientific question about levitating lunar dust.
A major goal of the mission was to understand a bizarre glow on the Moon’s horizon, spotted by Apollo astronauts just before sunrise. “So far we haven’t come up with an explanation for that,” project scientist Rick Elphic, of NASA’s Ames Research Center in Moffett Field, California, said at a media briefing on 3 April. One leading idea is that the Sun’s ultraviolet rays cause lunar dust particles to become electrically charged. That dust then lofts upwards, forming a cloud that caught the light and the astronauts’ eyes.
LADEE carries an instrument that measures the impact of individual dust particles, as well as the collective signal from smaller particles. Lunar scientists had expected a certain amount of tiny dust to explain what the Apollo astronauts saw. But LADEE didn’t find it. “We did measure a signal that indicates that the amount of lofted dust has to be at least two orders of magnitude below the expectations that were based on the Apollo reports,” says Mihály Horányi, the instrument’s principal investigator, who is at the University of Colorado. Perhaps the dust lofting happens only occasionally, he suggests, and the astronauts were in just the right place at the right time to see it.
This remains an important question. Knowing what caused that horizon glow and knowing how often it occurs is essential knowledge for any future lunar base or research station.
The launches at Kennedy, delayed because of a fire at an Air Force radar facility, have now been rescheduled.
The launches at Kennedy, delayed because of a fire at an Air Force radar facility, have now been rescheduled.
This includes a military launch by an Atlas 5 rocket on April 10 and SpaceX’s next Falcon 9 launch to supply ISS. The Falcon 9 flight will also include an attempt to bring the first stage back to a soft vertical landing over water.
The launches at Kennedy, delayed because of a fire at an Air Force radar facility, have now been rescheduled.
This includes a military launch by an Atlas 5 rocket on April 10 and SpaceX’s next Falcon 9 launch to supply ISS. The Falcon 9 flight will also include an attempt to bring the first stage back to a soft vertical landing over water.
Even as India successfully launched its second homemade GPS satellite today, its space agency ISRO announced that it will launch a test flight of a manned capsule in June using that country’s powerful GSLV rocket.
The competition heats up: Even as India successfully launched its second homemade GPS satellite today, the head of of the Vikram Sarabhai Space Centre in India announced that it will launch a test flight of a manned capsule in June using that country’s powerful GSLV rocket.
The competition heats up: Even as India successfully launched its second homemade GPS satellite today, the head of of the Vikram Sarabhai Space Centre in India announced that it will launch a test flight of a manned capsule in June using that country’s powerful GSLV rocket.