Discovery and ISS pass over the UK on March 7, 2011, captured by Will Gater.
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UPDATE: We’ve already got a sighting! The image above was taken this evening in the UK by science writer Will Gater.
Space shuttle Discovery undocked from the ISS on early Monday, March 7, and depending where you live, you might have an opportunity to see the two spaceships flying in tandem. This is an incredible sight, and will be the last opportunity to see Discovery in orbit, as she will be retired after she lands and completes the STS-133 mission. Spaceweather.com reports that the station and shuttle will be flying over parts of the United States and Europe Monday and Tuesday, appearing in the night sky as a closely-spaced pair of bright lights. The ISS is bigger, so will appear as the brighter object trailing the smaller Discovery as they move across the sky.
To find out if you’ll be able to see the two spaceships in your area, there are a few different sites to check out:
NASA has a Skywatch page where you can find your specific city to look for satellite sighting info.
Spaceweather.com, has a Satellite Tracker Tool. Just put in your zip code (good for the US and Canada) to find out what satellites will be flying over your house.
Heaven’s Above also has a city search, but also you can input your exact latitude and longitude for exact sighting information, helpful if you live out in the country.
Seeing the two spacecraft flying closely in tandem is a very unique and thrilling sight. Good luck!
Below, watch some of the incredible views as Discovery performed the fly-around maneuver of the ISS early Monday.
It may seem illogical, but boiling is a very efficient way to cool engineering components and systems used in the extreme environments of space.
An experiment to gain a basic understanding of this phenomena launched to the International Space Station on space shuttle Discovery Feb. 24. The Nucleate Pool Boiling Experiment, or NPBX, is one of two experiments in the new Boiling eXperiment Facility, or BXF.
Nucleate boiling is bubble growth from a heated surface and the subsequent detachment of the bubble to a cooler surrounding liquid. As a result, these bubbles can efficiently transfer energy from the boiling surface into the surrounding fluid. This investigation provides an understanding of heat transfer and vapor removal processes that happen during nucleate boiling in microgravity. Researchers will glean information to better design and operate space systems that use boiling for efficient heat removal.
Bubbles in microgravity grow to different sizes than on Earth. This experiment will focus on the dynamics of single and multiple bubbles and the associated heat transfer.
NPBX uses a polished aluminum wafer, powered by heaters bonded to its backside, and five fabricated cavities that can be controlled individually. The experiment will study single and/or multiple bubbles generated at these cavities. It will measure the power supplied to each heater group, and cameras will record the bubble dynamics. Analysis of the heater power data and recorded images will allow investigators to determine how bubble dynamics and heat transfer differ in microgravity.
“With boiling, the size and weight of heat exchange equipment used in space systems can be significantly reduced,” said Vijay Dhir, the experiment’s principal investigator at the University of California, Los Angeles. “Boiling and multiphase heat transfer is an enabling technology for space exploration missions including storage and handling of cryogenic, or extremely low temperature liquids, life support systems, power generation and thermal management.”
“The cost of transporting equipment to space depends on the size and weight of the equipment,” added David Chao, the project scientist from NASA’s Glenn Research Center in Cleveland. “The knowledge base that will be developed through the experiment will give us the capability to achieve cooling of various components and systems used in space in an efficient manner and could lead to smaller and lighter spacecraft.”
Discovery launches for one final mission. Credit: Alan Walters (awaltersphoto.com) for Universe Today.
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Overcoming a down-to the-last second problem, space shuttle Discovery made history today, launching on its final mission to orbit. The most-traveled orbiter is carrying a crew of six astronauts and one human-like Robonaut, along with a new permanent storeroom and supplies for the International Space Station. After waiting nearly four months following the detection of potentially dangerous cracks in Discovery’s external tank and a leak in the Orbiter Maneuvering System pod, a problem with a computer for the Air Force Range Safety Officer nearly thwarted the long-anticipated launch. The crew of STS-133 finally launched on their historic mission, with reinforced ribs, or stringers, in the tank’s “intertank” section and a leak-free OMS, and — two seconds before the launch window would have closed — a working computer in the Range. “That was about as last second as you can get,” said spokesman Allard Beutel from Kennedy Space Center.
Discovery set off on her final journey from a picture-perfect warm February day at Kennedy Space Center in Florida, thrilling enormous crowds of onlookers, a huge international press corp and dedicated Tweet-up attendees.
But the four month delay was not without consequences, as original STS-133 crew member Tim Kopra was injured in a bike accident, and Steve Bowen was chosen to replace him. The crew – which includes Commander Steve Lindsey, pilot Eric Boe, Nicole Stott, Michael Barratt, and spacewalkers Alvin Drew and Bowen — met at the base of the shuttle before climbing on board in a touching moment, giving each other a group hug before setting off on their mission.
In the payload bay is the Permanent Logistics Module – a glorified closet, with the first human-like robot, affectionately named R2, who will become a permanent crewmember on board the ISS.
STS-133 launch. Credit: Alan Walters (awaltersphoto.com) for Universe Today.
Discovery has been flying since Aug. 30, 1984. It’s first mission was 41-D, where astronauts deployed three communications satellites. Discovery has completed 30 successful missions, more than any other orbiter in NASA’s Shuttle fleet. The orbiter has undergone 99 different upgrades and 88 special safety tests – just since 2002. Discovery was named after several ships of exploration in human history.
Paving the way for the launch was today’s successful docking at the ISS of the ATV-2 Johannes Kepler, a European re-supply ship for the ISS. The Automated Transfer Vehicle 2 is the size of a double-decker bus, and carries 7 tons of supplies for the station’s six-person crew.
Shuttle Discovery on the launchpad. Credit: Alan Walters (awaltersphoto.com) for Universe Today.
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Following a Flight Readiness Review today, NASA and Space Shuttle Program managers announced that space shuttle Discovery is ready to launch next week Thursday to finally send the STS-133 mission to the International Space Station. Launch is now scheduled for Feb. 24, at 4:50 p.m. EST. “We had a really thorough review today,” said William Gerstenmaier, NASA’s associate administrator for Space Operations. “Things are looking pretty good.”
The STS-133 crew will bring the Permanent Multipurpose Module (PMM) to the station. The PMM was converted from the multi-purpose logistics module Leonardo and will provide additional storage for the station crew. Later, experiments may be conducted in the module, in fields like fluid physics, materials science, biology and biotechnology.
The first human-like robot will also make the trip to the ISS. Robonaut 2 will become a permanent resident of the station. In addition, Discovery will bring critical spare parts and the Express Logistics Carrier 4, an external platform that holds large equipment.
Managers, engineers and contractors went over the detailed analysis and testing performed on the “stringer” or support beams of Discovery’s external fuel tank during the session and reviewed the repairs and modifications made.
Mike Moses, chairman of the Mission Management Team, described the fix as a “a big metal band-aid” to give the metal beams extra support.
The processes of the repairs and testing involved people throughout the agency and its centers, and the managers at today’s press conference lauded the teams.
“I can’t say enough about the work the teams have done,” Gerstenmaier said. “They’ve done just an outstanding job to get us to where we are now ready to launch.”
The crew also underwent a change recently when astronaut Steve Bowen was assigned to take the place of Tim Kopra who was injured in a bicycle accident.
“Overall the crew was in really good shape and felt really comfortable with this change,” said Moses.
The managers at the FRR approved the February 24 launch date even thought the European resupply ship – the ATV Johannes Kepler — is scheduled to dock at the space station just six hours before Discovery’s launch. Moses said they are confident the ATV will dock, but will be ready to modify the shuttle launch should there be any problems with the ATV.
“If they run into a problem in docking we will discuss the issue in real time,” Moses said at the press conference. “We still might launch that day, we might not, depending on the situation. But the space station program would really like to have the ATV docked during this mission.”
Discovery now sits on Launch Pad 39A at NASA’s Kennedy Space Center in Florida, ready for launch. The countdown will begin Monday at 3 p.m. “We’re in outstanding shape out at the pad,” said Mike Leinbach, shuttle launch director.
In this computer-generated representation, a space shuttle is docked to a completed and fully operational International Space Station (ISS). Credit: NASA
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If all goes well and space shuttle Discovery arrives at the International Space Station the end of February, there will be a distinctive configuration: all the international partners will have a vehicle docked to the completed ISS. With the shuttle program about to retire, this configuration will be unique enough – this is the only time it will happen during the shuttle program — that NASA is considering putting three cosmonauts/astronauts in one of the Soyuz capsules that are docked to the station, have them undock and fly around to take pictures of the entire complex.
The Soyuz could photograph the station, showing the ISS in its final, completed configuration, with the shuttle attached, along with the Russian Progress and Soyuz, the European ATV and the Japanese HTV-1.
NASA managers, engineers and contractors are meeting today, Feb. 18 in a Flight Readiness Review to discuss the photo op. Of course, the Russian space agency would have to go along with the idea, as the task would not be insignificant.
Anytime a spacecraft undocks, there is the possibility of a problem or malfunction, and with people involved, the problems multiply fairly quickly. If for some reason the crew could not re-dock, they would have to deorbit and return to Earth, and the ISS crew would all of a sudden be reduced from six to three. Of course, the shuttle crew would be there, but their stay would be limited.
If the plans gets the OK, the crew doing the photo-op mission would ber Alexander Kaleri, Oleg Skripochka and Expedition 26 commander Scott Kelly.
Atlantis undocks after its first visit at Mir. Credit: Roscosmos/NASA
But you have to admit, the pictures and videos would be spectacular, and as things stand now, this would be the one and only chance to get a picture like this, a sort of family photo of the station and all the vehicles that support it.
The feat is not without precedence, however. The Russians took a similar photo on July 4, 1995, when the shuttle Atlantis was docked to the Mir space station, the first time a shuttle visited the Russian space station. Just before Atlantis undocked to return home, cosmonauts Anatoly Solovyev and Nikolai Budarin undocked in a Soyuz spacecraft and photographed the shuttle’s departure from a distance of about 300 feet.
There was a computer problem during the maneuver, however, and the cosmonauts had to dock manually and everything turned out just fine. And the picture was great, too.
The NASA Twitter feed reporting from today’s FRR meeting said the decision to do the photo op will probably not be made until during the STS-133 mission. NASA management is also deciding today when the Discovery mission will actually launch – right now it is scheduled for February 24, 2011 but they are weighing waiting until February 25, as the ATV Johnnes Kepler will arrive at the ISS on the 24th about 6 hours before the shuttle is scheduled to launch. If there were any problems with the ATV, the shuttle might have to stand down.
Here’s a chance to practice your French countdown skills: watch today’s successful launch of the European Space Agency’s Automated Transfer Vehicle “Johannes” on a Arianespace Ariane 5 rocket blasted off on Feb. 16, 2011, carrying the “Johannes Kepler” cargo-carrying vehicle to the International Space Station. It will take eight days for the ATV to arrive and dock to the aft end of the International Space Station’s Zvezda Service Module. This is the second of ESA’s resupply vehicles, and is loaded with about seven tons of supplies and propellant for use by the six crew members on the ISS.
After yesterday’s scrub of Johannes Kepler, NASA had said that a launch of the ATV today (Wednesday) might delay the launch of space shuttle Discovery for STS-133. However, today, NASA said that might not be the case. Officials will decide Discovery’s launch date at the Flight Readiness Review on February 18. Currently, STS-133’s launch is scheduled for Feb. 24.
The Expedition 25 crew landed safely in Kazakhstan at 11:46 p.m. EST Thursday (Friday 10:46 a.m. Kazakhstan time). The trio — Doug Wheelock, Shannon Walker and Soyuz Commander Fyodor Yurchikhin — undocked in the Soyuz TMA-19 at 8:23 p.m. ending their 5-1/2 month stay at the International Space Station. Staying behind on the orbiting laboratory are Expedition 26 Commander Scott Kelly and Flight Engineers Alexander Kaleri and Oleg Skripochka. Continue reading “Soyuz and 3 ISS Crewmembers Return Home”
The AMS-02 will be mounted on the outside of the International Space Station's S3 Truss element. Image Credit: NASA
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The Principal Investigator (P.I.) for the Alpha Magnetic Spectrometer-2 (AMS-02) experiment, Professor Samuel Ting, says that the experiment is already accruing data as it awaits its February 2011 launch date. Scheduled to fly aboard the final flight of the space shuttle Endeavour, STS-134, AMS-02 will search through cosmic rays for exotic particles, antimatter and dark matter. The experiment will be mounted to the outside of the International Space Station (ISS) and will require no spacewalks to attach. Continue reading “ISS Particle Detector Ready to Unveil Wonders of the Universe”
The ISS, from the shuttle mission in May 2010. Credit: NASA
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Last month the International Space Station partner agencies met to discuss the continuation of space station operations into the next decade and its use as a research laboratory. They also did a little forward thinking, and talked about some unique possibilities for the station’s future, including the potential for using the space station as a launching point to fly a manned mission around the Moon. I don’t know what our readers think, but my reactions is: this is just about the coolest idea I’ve heard in a long while! I’m having visions of a Star Trek-like space-dock, only on a smaller scale! In an article by the BBC’s Jonathan Amos, the partners said they want the ISS to become more than just a high-flying platform for doing experiments in microgravity, but also hope to see it become a testbed for the next-generation technologies and techniques needed to go beyond low-Earth orbit to explore destinations such as asteroids and Mars.
“We need the courage of starting a new era,” Europe’s director of human spaceflight, Simonetta Di Pippo, told the BBC News. For sending a mission to the Moon from the ISS, De Pippo said, “The idea is to ascend to the space station the various elements of the mission, and then try to assemble the spacecraft at the ISS, and go from the orbit of the space station to the Moon.”
One “next-generation” activity that is already planned is conducting a flight test of the Variable Specific Impulse Magnetoplasma Rocket (VASIMR) engine on the ISS, which is the new plasma–based space propulsion technology, that could get astronauts to destinations like Mars much quicker than conventional rockets. NASA has sign a commercial Space Act with the Ad Astra company (which is lead by former astronaut Franklin Chang Diaz).
But starting a Moon mission from the ISS is really a far-reaching, kind of “out-there” concept. It would be reminiscent of Apollo 8, and be the first of a new philosophy of using the station as a spaceport, or base-camp from where travelers start their journey. The propulsion system would be built at the station then launched from orbit, just like space travelers have dreamed for decades.
Of course, this is just an idea, and probably an expensive proposition, but isn’t it wonderful that the leaders of the space agencies are even thinking about it, much less talking about it?
Of course, doing zero-g experiments would always be the main focus of the ISS, but just think….
With this type of mission, the future of spaceflight actually be as Canadian astronaut Chris Hadfield describes in the video below. “This is the great stepping off point of to the rest of the universe,” says Hadfield, who will be commanding an upcoming expedition on the ISS. “This is an important moment in the history of human exploration and human capability,… and the space station is a visible sign of the future to come.”
Artist impression of the proposed Commercial Space Station. Credit: Orbital Technologies.
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Will there soon be another human destination in low Earth orbit, or is this a redundant pipe dream? Two Russian-based companies hope to build the first-ever commercial space station, named, fittingly, Commercial Space Station (CSS). Orbital Technologies and Rocket and Space Corporation Energia (RSC Energria) said in a press release that they will work together to build, launch, and operate the station, which they foresee as will being utilized by private citizens, professional crews as well as corporate researchers interested in conducting scientific programs.
“I am pleased to announce our intention to provide the global marketplace a commercially available orbital outpost,” said the CEO of Orbital Technologies, Sergey Kostenko. “Once launched and operational, the CSS will provide a unique destination for commercial, state and private spaceflight exploration missions. The CSS will be a valuable addition to the global base of orbital assets. We look forward to working with corporate entities, state governments and private individuals from around the world.”
The two companies provided no schedule for launches of the modules, or information about their funding or resources, except to advertise they are looking for partnerships.
A US-based company, Bigelow Aerospace, has also been planning to construct a commercial space station using expandable habitats. They launched prototypes in 2006 and 2007, and in 2011 plan to launch a larger 180,572 square ft. module, which they tout as “fully operational.”
“What competition do we see on the horizon?” said Robert Bigelow, founder and president on the Bigelow Aerospace website. “Nobody.”
This Russian space station, if it actually goes forward, would change that.
Reportedly, the CSS will be able to house up to seven people with “modules and technologies of the highest quality and reliability will be used in the construction of the station,” to “lead the private sector in the commercializing human spaceflight platforms in low Earth orbit.”
The CSS will be serviced by the Russian Soyuz and Progress spacecraft, as well other transportation systems available from other countries, enabled by a “unified docking system that will allow any commercial crew and cargo capability developed in the Unites States, Europe and China.”
Proposed interior of a CSS module. Credit: Orbital Technologies
Having second space station in orbit will allow the crew of the International Space Station to leave the ISS “if a required maintenance procedure or a real emergency were to occur, without the return of the ISS crew to Earth,” said Alexey Krasnov, Head of Manned Spaceflight Department, Federal Space Agency of the Russian Federation, allowing the ISS crew to have a safe haven in the event of an emergency.
But the main goal of the CSS is to be a hub for commercial activity, scientific research and development in low Earth orbit. Orbital Technologies said they already have several customers under contract from different segments of industry and the scientific community, representing such areas as medical research and protein crystallization, materials processing, and the geographic imaging and remote sensing industry.
“We also have proposals for the implementation of media projects,” said Kostenko. “And, of course, some parties are interested in short duration stays on the station for enjoyment.”
And for the future, the developers see the CSS as a “true gateway to the rest of the solar system,” said Kostenko. “A short stop-over at our station will be the perfect beginning of a manned circumlunar flight. Deep space manned exploration missions planned in the next decade are also welcome to use the CSS as a waypoint and a supply station.”
