Deep well inspection
An evening pause: Let’s take a strange journey, down 275 feet deep into a well. No sound, but fascinating nonetheless.
Tag: engineering
NASA about to decide on its shuttle heavy-lift replacement
NASA is about to decide on its shuttle heavy-lift replacement, and it looks like it will be almost entirely shuttle-derived.
As I have said previously, this rocket will almost certainly never fly. NASA has to start over after spending billions and years developing Constellation, and is being given less money and time to do it.
And even if I am wrong and this rocket does fly, I bet it will do only one flight and then be retired as too costly.
NASA is about to decide on its shuttle heavy-lift replacement, and it looks like it will be almost entirely shuttle-derived.
As I have said previously, this rocket will almost certainly never fly. NASA has to start over after spending billions and years developing Constellation, and is being given less money and time to do it.
And even if I am wrong and this rocket does fly, I bet it will do only one flight and then be retired as too costly.
SpaceX Sues Expert Who Questioned Safety of Falcon 9 Rocket
Turf war: SpaceX has sued a NASA safety expert (with ties to the Ares rocket program) who questioned the safety of the Falcon 9 rocket.
Turf war: SpaceX has sued a NASA safety expert (with ties to the Ares rocket program) who questioned the safety of the Falcon 9 rocket.
ESA controllers buy time to solve problems on comet probe Rosetta
This ain’t good. One of the reasons ESA controllers recently put the comet probe Rosetta into hibernation for two and a half years was in order to buy time to solve a serious technical problem.
Mission managers said the hibernation will permit Rosetta to rest its four reaction wheels, two of which have shown signs of degradation. The satellite needs three to function, and one of the two problem wheels will be used only as a spare when the satellite is awakened in January 2014 in preparation for its approach to a comet.
This ain’t good. One of the reasons ESA controllers recently put the comet probe Rosetta into hibernation for two and a half years was in order to buy time to solve a serious technical problem.
Mission managers said the hibernation will permit Rosetta to rest its four reaction wheels, two of which have shown signs of degradation. The satellite needs three to function, and one of the two problem wheels will be used only as a spare when the satellite is awakened in January 2014 in preparation for its approach to a comet.
A tanking test for the last shuttle flight encounters problems
During a tanking test of the space shuttle Atlantis today a valve to the main engines leaked, requiring replacement and raising questions whether the July 8 launch date can be met.
During a tanking test of the space shuttle Atlantis today a valve to the main engines leaked, requiring replacement and raising questions whether the July 8 launch date can be met.
Second X-51 hypersonic flight crashes prematurely
Second X-51 hypersonic flight crashes prematurely.
After what the US Air Force described as a ‘flawless’ flight to the launch point aboard a Boeing B-52 mothership, the X-51 was successfully boosted to Mach 5.0 by a rocket booster. The Pratt & Whitney Rocketdyne scramjet engine successfully ignited using its initial fuel, ethylene. During the immediate transition to JP-7, the conventional fuel that makes the X-51 unique, an inlet unstart occurred. A subsequent attempt to restart and reorient to optimal conditions was unsuccessful.
Second X-51 hypersonic flight crashes prematurely.
After what the US Air Force described as a ‘flawless’ flight to the launch point aboard a Boeing B-52 mothership, the X-51 was successfully boosted to Mach 5.0 by a rocket booster. The Pratt & Whitney Rocketdyne scramjet engine successfully ignited using its initial fuel, ethylene. During the immediate transition to JP-7, the conventional fuel that makes the X-51 unique, an inlet unstart occurred. A subsequent attempt to restart and reorient to optimal conditions was unsuccessful.
SpaceShipTwo completes two glide test flights within twenty-four hours
SpaceShipTwo completes two glide test flights within twenty-four hours.
SpaceShipTwo completes two glide test flights within twenty-four hours.
The world’s oldest functioning light bulb: 110 years old
The world’s oldest functioning light bulb: 110 years old.
The world’s oldest functioning light bulb: 110 years old.
Memo Marks Official End of Constellation
Don’t bet on it: A memo signed today by a senior NASA official marks the end of the Constellation program.
All this does is make the name change of the program-formerly-called-Constellation official. The pork continues nonetheless!
Don’t bet on it: A memo signed today by a senior NASA official marks the end of the Constellation program.
All this does is make the name change of the program-formerly-called-Constellation official. The pork continues nonetheless!
Robot refueling test of satellites to be launched on last shuttle flight
A testbed for testing the robotic refueling of satellites will be installed on ISS on last shuttle flight.
This whole testbed is the brainchild of Frank Cepollina, the man behind all of the Hubble Space Telescope repair missions. Until recently it was doubtful there was room for this project on any shuttle mission. That he nonetheless managed to get it on the last flight is another testament to Cepollina’s incredible ability to get things done. And if the tests work on ISS, NASA will then consider launching operational systems for refueling several perfectly usable climate satellites now in orbit.
A testbed for testing the robotic refueling of satellites will be installed on ISS on last shuttle flight.
This whole testbed is the brainchild of Frank Cepollina, the man behind all of the Hubble Space Telescope repair missions. Until recently it was doubtful there was room for this project on any shuttle mission. That he nonetheless managed to get it on the last flight is another testament to Cepollina’s incredible ability to get things done. And if the tests work on ISS, NASA will then consider launching operational systems for refueling several perfectly usable climate satellites now in orbit.
SpaceX gets another contract for its Falcon 9
SpaceX gets another launch contract for its Falcon 9.
SpaceX gets another launch contract for its Falcon 9.
Vesta begins to come into focus as Dawn approaches
ESA lifting body entry vehicle about to get final approval
European lifting body entry spacecraft is about to get its final approval before construction.
European lifting body entry spacecraft is about to get its final approval before construction.
“The moment of truth is about to arrive.”
SpaceShipTwo’s test program ramps up
Scaled Composites continues to ramp up the test flight program of SpaceShipTwo. More here.
Scaled Composites continues to ramp up the test flight program of SpaceShipTwo. More here.
Apollo spacesuits head to the museum
The modern American space effort: Apollo spacesuits head to the museum.
The modern American space effort: Apollo spacesuits head to the museum.
China’s lunar probe leaves lunar orbit
China’s second lunar probe, Chang’e 2, has been boosted out of lunar orbit and beyond.
China’s second lunar probe, Chang’e 2, has been boosted out of lunar orbit and beyond.
Second X-51 hypersonic flight scheduled for week of June 13
The second X-51 hypersonic flight is now scheduled for the week of June 13.
The second X-51 hypersonic flight is now scheduled for the week of June 13.
Camera being added to the last shuttle external tank
A camera has been installed on the last shuttle external tank so that its destruction in the atmosphere can be observed.
A camera has been installed on the last shuttle external tank so that its destruction in the atmosphere can be observed.
Opportunity Heads Toward ‘Spirit Point’
Opportunity’s target on the rim of Endeavour crater has been dubbed “Spirit Point” by the science team in honor of the now defunct rover.
Opportunity’s target on the rim of Endeavour crater has been dubbed “Spirit Point” by the science team in honor of the now defunct rover.
Human bones taken to ISS for long space flight experiments.
Human bones were part of the cargo on board the Soyuz capsule launched to ISS today.
“The fragments of human bones will be used to study the causes and dynamics of decalcination of bone tissue in a long space flight,” the head of the experiment, Tatiana Krasheninnikova told Itar-Tass. The problem of decalcination is a headache for medics responsible for spacemen’s health. Researches in this area are conducted by scientists from many ISS member states. However it is impossible to take sample of spacemen’s bones, only their urine is being examined, and a complete picture of dynamics of changes in human bones is not clear, she noted.
Human bones were part of the cargo on board the Soyuz capsule launched to ISS today.
“The fragments of human bones will be used to study the causes and dynamics of decalcination of bone tissue in a long space flight,” the head of the experiment, Tatiana Krasheninnikova told Itar-Tass. The problem of decalcination is a headache for medics responsible for spacemen’s health. Researches in this area are conducted by scientists from many ISS member states. However it is impossible to take sample of spacemen’s bones, only their urine is being examined, and a complete picture of dynamics of changes in human bones is not clear, she noted.
NASA Inspector General notes continuing worries about the Mars Science Lab
A NASA Inspector General report issued today [pdf] notes continuing worries about the Mars Science Laboratory, scheduled for launch later this year.
Remaining Unresolved Technical Issues: Although Project managers have overcome the majority of technical issues that led to the [2009] launch delay, as of March 2011 three significant technical issues remain unresolved. . . . Because of technical issues related to these three and other items, Project managers must complete nearly three times the number of critical tasks than originally planned in the few months remaining until launch. [emphasis mine]
A NASA Inspector General report issued today [pdf] notes continuing worries about the Mars Science Laboratory, scheduled for launch later this year.
Remaining Unresolved Technical Issues: Although Project managers have overcome the majority of technical issues that led to the [2009] launch delay, as of March 2011 three significant technical issues remain unresolved. . . . Because of technical issues related to these three and other items, Project managers must complete nearly three times the number of critical tasks than originally planned in the few months remaining until launch. [emphasis mine]
Market research firm predicts over 1,600 satellites worth $250 billion will be launched in the next fifteen years
A bright future for commercial space: A market research firm predicts the launching of more than 1,600 satellites, worth $250 billion, in the next fifteen years.
A bright future for commercial space: A market research firm predicts the launching of more than 1,600 satellites, worth $250 billion, in the next fifteen years.
Crew heading to station on Soyuz
A new crew, launched by Russia, is heading to the International Space Station.
A new crew, launched by Russia, is heading to the International Space Station.
Endeavour Caught Fire During Landing
There was a small fire in Endeavour’s landing gear when it landed last week.
There was a small fire in Endeavour’s landing gear when it landed last week.
NASA Finally Releases Photos of Endeavour Docked at ISS
NASA has finally released the photos of Endeavour docked to ISS, taken from a departing Soyuz.
NASA has finally released the photos of Endeavour docked to ISS, taken from a departing Soyuz.
Students in space!
3 nuclear reactors melted down after quake, Japan confirms
And still no one has died from this particular failure: Japan confirms that all three nuclear reactors melted down after the quake and tsunami.
And still no one has died from this particular failure: Japan confirms that all three nuclear reactors melted down after the quake and tsunami.
Physicists have captured atoms of antimatter now for more than 15 minutes
In new research at CERN physicists now have captured atoms of antimatter for more than 15 minutes.
In new research at CERN physicists now have captured atoms of antimatter for more than 15 minutes.
What an astronaut’s camera sees
An evening pause: More here.