What Does the Moon Look Like from Space?

Aeronomy
Earth's thin line of atmosphere and a gibbous moon are featured in this image photographed by astronaut Ron Garan. Credit: NASA/Ron Garan. Click for larger version

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Ah, the Moon! Earth’s constant companion and the subject of songs, poetry, and many an astrophoto here on Universe Today. But we always gaze upon the Moon under the cover of Earth’s atmosphere. Does it look any different from up above the world so high? Astronauts from the ISS have taken plenty of pictures of the Moon, and here are a couple recent and notable lunar images. The one above is of a crescent Moon taken in March of this year (2011) — notice the bright crescent sliver present even while the entire moon is visible. Here, the Moon looks teeny tiny. Below is another view of a bigger, but still crescent Moon as seen from the ISS.


The Moon as seen by astronaut Ron Garan on the ISS on July 31, 2011. Credit: NASA/ Ron Garan

Expedition 28 astronaut Ron Garan took this image just a few days ago on July 31, 2011 from the International Space Station. This is such a stunning image, it was featured on NASA’s Image of the Day Gallery. Garan noted the view saying, “We had simultaneous sunsets and moonsets.” For anyone in orbit, this extraordinary event is a daily occurrence. Since the station orbits the Earth every 90 minutes, each day the crew experiences such a view about 16 times a day.

See more from Ron Garan on his Twitpic page.

Last Towback of a Flight Worthy Space Shuttle – Atlantis Post Touchdown Photo Album

Remember when there was a Space Shuttle. Atlantis flew the final flight of NASA’s Space Shuttle Era on the STS-135 mission and was the last flight worthy orbiter to be towed back from the Shuttle Landing Facility. Atlantis touched down on July 21, 2011 at the Kennedy Space Center. Credit: Ken Kremer

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Space Shuttle Atlantis closed out NASA’s Space Shuttle Era with a safe touchdown on July 21, 2011 at the Kennedy Space Center in Florida at the conclusion of the STS-135 mission, the 135th and final shuttle mission.

I was extremely fortunate to be an eyewitness to history and one of the lucky few journalists permitted by NASA to follow along as Atlantis took her historic final journey back from wheels stop at Runway 15 at the Shuttle Landing Facility as a flight worthy orbiter.

A convoy of 25 specialized vehicles safe each orbiter after landing. Some four hours later, Atlantis was towed off the runway with a diesel powered tractor for about 2 miles along the tow way leading to the Orbiter Processing Facility which lies adjacent to the Vehicle Assembly Building (VAB) at KSC.

The STS-135 crew consisted of Shuttle Commander Chris Ferguson, Pilot Doug Hurley and Mission Specialists Sandra Magnus and Rex Walheim.

Check out my Towback Photo Album below, and prior album from wheels stop at the shuttle runway earlier in the day, here:

Atlantis towed nose first from runway 15 at the Shuttle Landing Facility at KSC.
Credit: Ken Kremer (kenkremer.com)
Atlantis towback from shuttle landing strip on July 21, 2011. Credit: Ken Kremer
Atlantis and post landing convoy vehicles. Credit: Ken Kremer
Impressionistic Atlantis. Credit: Ken Kremer
Convoy of 25 specialized vehicles tow Atlantis from the runway to the Orbiter Processing Facility.
Credit: Ken Kremer
Convoy crew waves to media. Credit: Ken Kremer
Convoy of 25 specialized vehicles tow Atlantis two miles along tow way from the runway to the Orbiter Processing Facility. Credit: Ken Kremer
Atlantis heads to the Orbiter Processing Facility adjacent to Vehicle Assembly Building at KSC.
Credit: Ken Kremer

Read my features about the Final Shuttle mission, STS-135:
Wheels Stop ! With Awesome Atlantis on the Shuttle Runway – Photo Gallery Part 1
Ghostly Landing of Atlantis Closes America’s Space Shuttle Era Forever
Love of Science Drives Last Shuttle Commander – Chris Ferguson Brings Science Museum to Orbit
Revolutionary Robotic Refueling Experiment Opens New Research Avenues at Space Station
Water Cannon Salute trumpets recovery of Last Shuttle Solid Rocket Boosters – Photo Album
Shuttle Atlantis Soars to Space One Last time: Photo Album
Atlantis Unveiled for Historic Final Flight amidst Stormy Weather
Counting down to the Last Shuttle; Stormy weather projected
Atlantis Crew Jets to Florida on Independence Day for Final Shuttle Blastoff
NASA Sets July 8 for Mandatory Space Shuttle Grand Finale
Final Shuttle Voyagers Conduct Countdown Practice at Florida Launch Pad
Final Payload for Final Shuttle Flight Delivered to the Launch Pad
Last Ever Shuttle Journeys out to the Launch Pad; Photo Gallery
Atlantis Goes Vertical for the Last Time
Atlantis Rolls to Vehicle Assembly Building with Final Space Shuttle Crew for July 8 Blastoff

Manhattan-Sized Ice Island Seen From Space

An iceberg the size of Manhattan drifts off the coast of Labrador

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Taken by NASA astronaut and Expedition 27 flight  engineer Ron Garan, this image shows the Petermann Ice Island (PII-A) currently adrift off the coast of Labrador. The island is a chunk of ice that broke off the Petermann Glacier in Greenland in August of 2010 and has been moving slowly southward ever since. It is currently about 21 square miles (55 square km) in size – nearly the same area as Manhattan!

Garan’s original photo was posted to his Twitter feed earlier today… I cropped the full-size version, rotated it so that south is down and edited it to bring out surface details in the island. Ridges in its surface can be seen as well as many bright blue meltwater ponds.

"Another look at that lonely iceberg from space... can you find it?" @Astro_Ron

Overlaid on the left side is an approximate scale size of Manhattan. This thing is BIG!

PII-A is currently drifting toward Newfoundland but is unlikely to reach land… its base will run against the sea floor long before that. But it has been reported to be posing a problem for ships and offshore oil rigs. (Read more about PII-A on NASA’s Earth Observatory site here.)

When he’s not performing other duties aboard the Space Station, Ron Garan posts photos of Earth from orbit on his Twitter feed (@Astro_Ron) and also on his website FragileOasis.org, thereby sharing his unique and privileged perspective on our world. Founded by Garan, Fragile Oasis is a site that supports and publicizes many global projects supporting humanitarian and environmental missions. Visit, become a member, and you too can “learn, act, and make a difference.” After all, who better than an astronaut would know how much our world is connected, and how fragile it really is!

Image credit: NASA / Ron Garan. Edited by Jason Major.

PS: If you want an idea of how something like this would look like up close, check out this video below taken from a ship near one of the smaller pieces of the ice island!

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Jason Major is a graphic designer, photo enthusiast and space blogger. Visit his website Lights in the Dark and follow him on Twitter @JPMajor or on Facebook for the most up-to-date astronomy awesomeness!

Love of Science Drives Last Shuttle Commander – Chris Ferguson Brings Science Museum to Orbit

Space Shuttle Atlantis at Launch Pad 39A. STS-135 Shuttle Commander Chris Ferguson brought a piece of the Fels Planetarium dome from the Franklin Institute Science Museum, Philadelphia , PA, to orbit inside Atlantis crew cabin to motivate children to wonder why the Universe is the way it is and discover the physical laws that make it so. The 5-pointed star (see photo below) will be returned to Earth at the conclusion of the grand final of the NASA’s Shuttle Era and be placed on public display at the museum. Credit: Ken Kremer

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In the weeks leading up to the launch of Space Shuttle Atlantis, I had the distinct honor to speak on several occasions with Chris Ferguson, the Space Shuttle Commander of the STS-135 mission that will soon close out NASA’s Space Shuttle Era.

Chris talked to me about his childhood experiences that led him to “love science” and how he strongly believes in “giving back” to a community that enriched him so much – and eventually led him to his career as a space shuttle astronaut.

That passion for science and giving will result in an extraordinary and out of this world gift to the people of Philadelphia, Pennsylvania, hometown to Chris Ferguson that he hopes will inspire kids to love science.

I first met Chris about two years ago in Philadelphia when he generously gave a well received presentation to our astronomy club, the Rittenhouse Astronomical Society – which meets at the Franklin Institute Science Museum and where I frequently lecture too.

At that time Ferguson had already been a veteran space flyer with two trips to the International Space Station – but he not yet been named to command the last shuttle flight. Over 150 folks attended Ferguson’s talk – held in the presence of the marble statue of Benjamin Franklin. The statue is a US National Historic Landmark.

Fels Planetarium Dome Star from the Franklin Institute Science Museum, Philadelphia, PA
STS-135 Shuttle Commander Chris Ferguson seeks to inspire kids to study science as a way to give back to his hometown community which inspired him to accomplish great goals and become a space shuttle astronaut. Ferguson brought this small piece of the Franklin Institute to the space station and back. The 5-pointed 4-inch star from the Franklin Institute’s Fels Planetarium dome will be put on public display for the future enjoyment of millions of kids of all ages. Credit: The Franklin Institute Science Museum

As a child, Chris attended classes from grade school to high school in Philadelphia, the city of brotherly love.

“I developed and cultivated a love of science, engineering and space in many childhood trips to the Franklin Institute in Philadelphia,” Ferguson told me.

“I was always a science oriented kid growing up. I have an innate curiosity for how things work. The Franklin Institute fed my curiosity.”

“And it was some teachers I had at a young age in my high school in Philadelphia who made me want to understand more. And to understand the reason about why things work the way they do … And to understand why the physical laws that govern the Universe are the way they are.”

STS-135 Shuttle Commander Chris Ferguson during crew walk out to launch pad 39A on July 8. Credit: Ken Kremer

“The one thing I could never fathom well was understanding spaceflight. And the way to really understand something is to go do it,” said Chris Ferguson.

“What this is really about is going into space, living and working there and dragging the American public along with us. We need to constantly feed the machine for the folks who are curious and are on a quest to understand things they don’t understand and desire to wonder what’s beyond low Earth orbit and how you live in space for a long period of time.”

“The only way you feed that is by planting the seeds when they are young. You grow the big Oaks out of little acorns.”

“And you get the little acorns at places like the Franklin Institute and the Smithsonian National Air & Space Museum. That’s what did it for me,”

“I think you need to go back and you need to give back. So I’m looking forward to going back to the Franklin Institute !” said Ferguson

And when Chris does go back to the Franklin Institute later this year he will bring along a very very special gift – a piece of the Institute’s Fels Planetarium dome flew millions of miles to the space station and back aboard history’s very last Space Shuttle orbiter – Atlantis – that will ever take a star trek to the High Frontier.

STS-135 crew at Q&A session with journalists at base of Launch Pad 39A, Kennedy Space Center prior to last blastoff on July 8, 2011. From left; Mission Specialists Rex Walheim and Sandy Magnus; Pilot Doug Hurley and Commander Chris Ferguson. Credit: Ken Kremer

And the project was Ferguson’s idea according to Derrick Pitts, Chief Astronomer at the Fels Planetarium of the Franklin Institute.

“Chris sent me an email asking if we (The Franklin Institute) would like to fly something on STS-135,” Pitts told me.

“I quickly agreed, found out what the criteria for launch would be and then pulled a team together to figure out what to send. It was decided to send a star-shaped piece of the original Fels Planetarium dome.

“The original dome was replaced in 2002 but I’d kept several large sections of the stainless steel panels and had a number of 5-pointed stars about 4″ across cut from the panels to mount and give as gifts to friends of the Fels. It weighs about 6 oz.”

“Since more than 10 million visitors have sat under that dome including several school students who would later become NASA astronauts, it seemed fitting to send one of these stars.”

“The piece presented some problems though. As a stainless steel piece, it has sharp edges and 5 very sharp points – both verboten by NASA and it is ever so slightly oversized. We fixed the worst problem by encasing the star – points edges and all – in a transparent acrylic ‘jewel box’ sandwich held closed with stainless steel screws.”

“We had about ten days from the first email to delivery date to him in Houston. When it returns to Earth, Ferguson has offered to bring it back to Philadelphia where we’ll put it on permanent display in the main Planetarium hallway. This will be the second time Franklin has flown an article with a native Philadelphian astronaut. Our last trip was with Jim Bagian on STS-40 in 1991.”

Chris is a humble, eloquent and down to earth guy and knows how lucky he is to be commanding the grand finale of the thirty year long shuttle program. And he is determined that he and his STS-135 crew of four do their very best to accomplish all their goals.

“I’m just proud to be a small part of it and am savoring the moment. We’re focused on the mission now and will have time to ponder this moment in history when it’s all over,” Ferguson concluded.

Space Shuttle Atlantis and her crew of 4 are scheduled to land at 5:56 a.m. on July 21, 2011 at the Kennedy Space Center in Florida.

STS-135 Shuttle Commander Chris Ferguson (right) and Ken Kremer at emergency M-113 Tank Practice. Chris brought a special public gift for science aboard the last shuttle mission. Chris and Ken discuss our mutual love of science in the weeks before Atlantis July 8 liftoff. Credit: Ken Kremer

Read my features about the Final Shuttle mission, STS-135:
Revolutionary Robotic Refueling Experiment Opens New Research Avenues at Space Station
Water Cannon Salute trumpets recovery of Last Shuttle Solid Rocket Boosters – Photo Album
Shuttle Atlantis Soars to Space One Last time: Photo Album
Atlantis Unveiled for Historic Final Flight amidst Stormy Weather
Counting down to the Last Shuttle; Stormy weather projected
Atlantis Crew Jets to Florida on Independence Day for Final Shuttle Blastoff
NASA Sets July 8 for Mandatory Space Shuttle Grand Finale
Final Shuttle Voyagers Conduct Countdown Practice at Florida Launch Pad
Final Payload for Final Shuttle Flight Delivered to the Launch Pad
Last Ever Shuttle Journeys out to the Launch Pad; Photo Gallery
Atlantis Goes Vertical for the Last Time
Atlantis Rolls to Vehicle Assembly Building with Final Space Shuttle Crew for July 8 Blastoff</a

One Last Time: The Shuttle “Belly Flip”

“Poetry in motion, as Atlantis conducts the last RBAR Pitch Maneuver in shuttle program history,” says NASA TV commentator Rob Navais. Piloted by Space Shuttle commander Chris Ferguson, Atlantis moves through this 9-minute, 360-degree rotation directly beneath the International Space Station. Commonly called the “Belly Flip,” only about 90 seconds of actual high-resolution photography is taken during the entire maneuver. It enables the ISS crew to photograph Atlantis’ Thermal Protection System for engineers on the ground to check for any damage to the heat resistant tiles.

Atlantis Unveiled for Historic Final Flight amidst Stormy Weather

Atlantis awaits blastoff on STS-135 Mission. Credit: Ken Kremer

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The last Space Shuttle in history that will blast off for space was unveiled today at the Kennedy Space Center (KSC) in Florida amidst terrible weather. Heavy rain showers and thunderstorms are inundating the space center during prelaunch preparations for the blast off of Space Shuttle Atlantis.

Two lightning strikes occurred within about a third of a mile of Launch Pad 39 at 12:31 p.m. and 12:40 p.m. EDT. After engineering teams evaluated data from the strikes, NASA shuttle managers decided it was safe to proceed with launch preparations.

Following about a 40 minute delay, Atlantis was unveiled for liftoff after retraction of the massive rotating service structure which protects the orbiter from inclement weather and impacts from foreign object debris.

IMG_9164a_STS 135_Ken Kremer

The chances of favorable weather for launch of the STS-135 mission on Friday July 8 are just 30%, meaning 70% NO GO said Shuttle Weather officer Kathy Winters at a briefing for reporters today at KSC. Liftoff is targeted for 11:26 a.m. EDT.

NASA has a narrow window of three opportunities on July 8, 9 and 10 and must then stand down for nearly a week because the US Air Force has scheduled a Delta rocket launch on July 14. If the Air Force would agree to delay the Delta by few days, NASA could launch Atlantis on Monday or Tuesday in case for further launch delays.

Upwards of 750,000 spectators are expected.

Atlantis goal is deliver the Raffaello logistics module and the Robotic Refueling Mission to the ISS on a 12 day mission that will end the shuttle era.

Atlantis poised on for the final time on Launch Pad 39A at the Kennedy Space Center. Credit: Ken Kremer
Closeup of the White Room leading to the crew cabin. Credit: Ken Kremer

Video of Lightning Strike near Shuttle Launch Pad

Counting down to the Last Shuttle; Stormy weather projected

Space Shuttle Atlantis awaits Blastoff on July 8, 2011 from Launch Pad 39A at the Kennedy Space Center in Florida. Credit: Ken Kremer

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The countdown to NASA’s 135th and final shuttle launch began today (July 5) with no technical issues blocking liftoff at this time. But upwards of 750,000 spectators may be disappointed because the weather on launch day, July 8, is looking decidedly dicey. Storm weather and stormy seas lie ahead for NASA.

At today’s press briefing, Shuttle Weather Officer Kathy Winters projected that the chance of favorable weather is only 40% for Friday’s 11.26 a.m. liftoff of Atlantis because of the likely threat of rain at the Kennedy Space Center.

The 12 day STS-135 mission will loft about 9500 pounds of supplies and equipment that NASA shuttle managers state are absolutely “mandatory” in order to keep the International Space Station operating at full capacity for the next year.

“I wish I had a better weather briefing for you, but it does look like we are going to have some weather, at least potential for weather, in the area at launch time,” said Winters. “Right now, we’re going with a 60 percent chance of KSC weather prohibiting launch due to the potential for showers and isolated thunderstorms in the area.”

In the event of a one day delay to Saturday, the chances for favorable weather increases considerably to 60%. For a two day delay to July 10, the chances of acceptable weather climbs to 70%.

After July 10, the liftoff of the STS-135 mission would have to be delayed to July 16 because NASA would be forced to stand down shuttle launch operations in order to allow the Air Force to launch a military navigation satellite on July 14 from Cape Canaveral. That is unless the Air Force relents – out of consideration for the three quarters of a million folks expected to jam the Florida space coast beaches, highways and hotels – and offers NASA the opportunity to launch Atlantis for several days starting on July 11 – in case of a launch delay.

STS-135 crew at base of Launch Pad 39A, Kennedy Space Center. From left; Mission Specialists Rex Walheim and Sandy Magnus; Pilot Doug Hurley and Commander Chris Ferguson. Credit: Ken Kremer

Space fans need to be patient and plan for undesired contingencies just like NASA by packing extra provisions like food, water and clothing and also should consider extended accommodations.

Clocks began ticking backwards today at 1p.m.EDT at the T Minus 43 hour mark towards the final blastoff of Space Shuttle Atlantis.

NASA Test Director Jeremy Graeber said at today’s briefing that Atlantis is ready to fly.

“Our teams here at the Kennedy Space Center and all the NASA centers across the country have been working for over a year to prepare Atlantis, the external tank our solid rocket boosters, the payload and all of our ground systems for the STS-135 mission,” Graeber stated. “All of our vehicle and ground systems are ready, the STS-135 crew, Atlantis and the launch team are all ready to proceed and we’re looking forward to a spectacular launch on Friday morning.”

STS-135 payload manager Joe Delai said the payloads and the Raffaello cargo carrier module are ready to go as well. “The primary objective of Atlantis is to resupply the ISS for one year. About 9500 pounds are going up. This is the largest payload in terms of volume.”

Delai said that Raffaello was specially modified to increase its cargo carrying capacity by several hundred pounds.

The STS-135 mission will bring NASA’s 30 year long shuttle program to a definite close and simultaneously mark the termination of the US capability to launch humans to space for at least several years.

Space Shuttle Atlantis perched on top of Pad 39A for the Grand Finale of the shuttle program.
Credit: Ken Kremer
NASA KSC shuttle managers brief media about the payload and launch status of the STS-135 mission to the International Space Station. From left: NASA Test Director Jeremy Graeber, Payload Mission Manager Joe Delai and Shuttle Weather Officer Kathy Winters

Atlantis Crew Jets to Florida on Independence Day for Final Shuttle Blastoff

The final Shuttle Crew jets into the Kennedy Space Center on Independence Day, 2011. From Left: Shuttle Commander Chris Ferguson, Pilot Doug Hurley and Mission Specialists Sandy Magnus and Rex Walheim. Credit: Ken Kremer

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The four astronauts who will fly the Grand Finale of NASA’s space shuttle program arrived at the Florida launch site on Independence Day on a wave of T-38 training jets. The veteran crew flew into the Kennedy Space Center (KSC) from Ellington Field in Houston, Texas and touched down at the shuttle landing strip at about 2:30 p.m. EDT.

Blast off of Space Shuttle Atlantis on the STS-135 mission is slated for July 8 at 11.26 a.m. with Shuttle Commander Chris Ferguson at the helm. He is joined by Pilot Doug Hurley and Mission Specialists Sandy Magnus and Rex Walheim.

Upon landing in the sweltering Florida heat, the astronauts were welcomed by Space Shuttle Launch Director Mike Leinbach as well as other NASA/KSC officials and a large crowd of media. Many waved US flags in honor of the July 4th Independence Day holiday.

Shuttle Commander Chris Ferguson addresses the media about the STS-135 mission. Credit: Ken Kremer

“I think I speak for the whole crew in that we are delighted to be here after a very arduous nine month training flow and we’re thrilled to finally be here in Florida for launch week,” said Ferguson. “This is a day that’s decidedly American, a day where we kind of reflect on our independence and all the wonderful things that we really have as part of being the United States of America. I think it’s wonderful you’ve all come out to join us.”

“We have a very event-filled mission ahead of us, we have 12 days, we’ll be very, very busy,” Ferguson added. “When it’s all over, we’ll be very proud to put the right-hand bookend on the space shuttle program.”

The quartet will spend the next few days completing final prelaunch training to prepare for their planned 12 day flight bound for the International Space Station.

The primary cargo is the Raffaello Multipurpose Logistics module built in Italy and jam packed with some five tons of spare parts, science gear, food, water, clothing and more that will be transferred to the station by the station and shuttle crews and are absolutely essential to keep the orbiting outpost operating over the next year.

About 2000 journalists and photographers are expected to cover Atlantis’s launch, the largest media gathering for a shuttle launch since the Return to Flight in 2005 – that’s about twice the media here for the last launch of Endeavour in April.

The countdown clock begins ticking at 1 p.m. EDT on Tuesday, July 5

Shuttle Launch Director Mike Leinbach greets Commander Ferguson. Credit: Ken Kremer
Doug Hurley and Sandy Magnus speak to reporters at the shuttle landing strip. Credit: Ken Kremer
STS-135 crew jets to Florida on T-38 training jets for planned July 8 blastoff. Shuttle Commander Chris Ferguson flew this jet accompanied by Sandy Magnus. Credit: Ken Kremer
STS 135 crew arrives in Florida at the Shuttle Landing Facility. Credit: Ken Kremer

Read my prior features about the Final Shuttle mission, STS-135, here:
NASA Sets July 8 for Mandatory Space Shuttle Grand Finale
Final Shuttle Voyagers Conduct Countdown Practice at Florida Launch Pad
Final Payload for Final Shuttle Flight Delivered to the Launch Pad
Last Ever Shuttle Journeys out to the Launch Pad; Photo Gallery
Atlantis Goes Vertical for the Last Time
Atlantis Rolls to Vehicle Assembly Building with Final Space Shuttle Crew for July 8 Blastoff

NASA Sets July 8 for Mandatory Space Shuttle Grand Finale

NASA officially set July 8 to launch Space Shuttle Atlantis on the Grand Finale of the shuttle program. This photo shows Atlantis at Launch Pad 39A prior to installation of the cargo into the payload bay. Blastoff of the STS-135 mission is scheduled for 11:26 a.m. EDT from the Kennedy Space Center in Florida. Credit: Ken Kremer

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NASA Shuttle managers met today (28 June) and officially set July 8 as the launch date for the Grand Finale of the shuttle program by Space Shuttle Atlantis. And the NASA officials also emphasized that the STS-135 mission is absolutely crucial to the future well being and functioning of the International Space Station (ISS).

“This flight is incredibly important,” said Bill Gerstenmaier, NASA associate administrator for space operations. “The cargo that is coming up on this flight is really mandatory for space station. This mission is critical from a resupply standpoint. We will stay on orbit in case of some small orbiter failures.”

Atlantis’ primary goal is to dock with the million pound orbiting outpost and deliver the “Raffaello” logistics module. Raffaello is packed to the gills with some 5 tons of critical spare parts, food, water, provisions and science equipment that will keep the station stocked and the crew fed for a year. About one third of the cargo is food.

The STS 135 mission will buy invaluable time to keep the station running and science experiments continuing full tilt after the shuttles are retired and until replacement cargo vehicles are brought online.

STS-135 crew meets with journalists at base of Launch Pad 39A, Kennedy Space Center. From left; Mission Specialists Rex Walheim and Sandy Magnus; Pilot Doug Hurley and Commander Chris Ferguson. Credit: Ken Kremer

NASA hopes that commercial providers – SpaceX and Orbital Sciences – will soon pick up the slack and fill the supply void created by prematurely shutting down the shuttles now, before the replacement vehicles are functioning and proven. If the private company’s spacecraft are further delayed, then the ISS crew size may have to be reduced from 6 to 3 and station science operations could be significantly curtailed.

NASA announced the unanimous “GO” for the July 8 liftoff following a day long Flight Readiness Review at the Kennedy Space Center involving senior shuttle managers from the NASA and contractor teams.

NASA managers announced “GO” for launch of Atlantis on July 8 at a briefing for reporters at KSC. From left: Bill Gerstenmaier, NASA associate administrator for space operations, Mike Moses, Space Shuttle Program launch integration manager, Mike Leinbach, shuttle launch director. Credit: Chase Clark

“We had a very thorough review,” said Gerstenmaier. Shuttle managers reviewed the shuttle and launch pad systems, the risks associated with the flight as well as the payloads tucked inside the orbiter and an assortment of technical issues and problems that cropped up during the pre-launch processing.

The STS-135 crew comprises of just four astronauts, all veterans, led by Shuttle Commander Ferguson who is joined by Pilot Doug Hurley, and Mission Specialists Sandy Magnus and Rex Walheim. They are scheduled to fly back to Kennedy on Independence Day, Monday, July 4, for the final days of launch preparations.

Since there is no back up rescue shuttle, the shuttle astronauts would have to return to Earth aboard Russian Soyuz capsules in the event of an on orbit emergency.

“We’re really looking forward to achieving this mission, putting station where it needs to be and finishing strong with the shuttle program here with STS-135,” said Mike Moses, Space Shuttle Program launch integration manager.

Moses added that NASA very much wants to extend the planned 12 day flight by one more day to give the crew more time to transfer cargo back and forth between Raffaello and the station.

NASA especially wants to fully load Raffaello for the return trip with experiment samples and voluminous no longer needed items of trash to give the station crew additional work and storage space. The extension depends on consumables use and will be decided once on orbit. Without the shuttle, down mass capability will be severely limited until the private providers are ready.

Technicians at the pad worked successfully to swap out a faulty shuttle engine valve and take X-rays of reinforcing joints on the External Tank after the recent tanking test, thus enabling NASA to approve the July 8 launch date.

“Atlantis is in great shape out at the pad,” said Mike Leinbach, shuttle launch director. “Team Atlantis is feeling good about the flow and the launch countdown and hope we’ll be able to get her off the ground on Friday the 8th as scheduled.”

“We expect between 500,000 and 750,000 visitors for the launch,” added Leinbach. “We have three launch attempts available on July 8, 9 and 10.”

The countdown clocks will start ticking backwards at 1 p.m. on July 5. STS-135 is the 135th and last shuttle mission.

This will be Atlantis’ 33rd flight and the 37th overall to the station.

Atlantis will be the last of NASA’s three shuttle orbiters to be retired.

Side view of Atlantis at Launch Pad 39A during pre-launch processing on June 28. Credit: Chase Clark

Read my prior features about the Final Shuttle mission, STS-135, here:
Final Shuttle Voyagers Conduct Countdown Practice at Florida Launch Pad
Final Payload for Final Shuttle Flight Delivered to the Launch Pad
Last Ever Shuttle Journeys out to the Launch Pad; Photo Gallery
Atlantis Goes Vertical for the Last Time
Atlantis Rolls to Vehicle Assembly Building with Final Space Shuttle Crew for July 8 Blastoff

Space Junk Forces ISS Crew to Takes Shelter in Soyuz

A view of the ISS from a Soyuz spacecraft while space shuttle Endeavour was docked. Credit: NASA/ESA

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The six crewmembers on board the International Space Station were told to take shelter in the two Russian Soyuz spacecraft early Tuesday because Space Command predicted a piece of space junk could make a close approach to the station. Radar tracking indicated the debris would make its close pass at 8:08 a.m. EDT (12:08 UTC), coming within about 243 meters (800 feet) of the station and well within the “pizza box” -shaped area around the ISS, but when no impact was detected the crew was told they could reenter the station and resume normal operations.

NASA’s Chief Scientist for Orbital Debris Nicholas L. Johnson told Universe Today during a previous “conjuction” of space debris and the ISS that on average, close approaches to ISS occur about three times a month. An approach of debris is considered “close” only when it enters an imaginary “pizza box” shaped region around the station, measuring 0.75 kilometers above and below the station and 25 kilometers on each side( 2,460 feet above and below and 15.6 by 15.6 miles).

Johnson said that small pieces of debris have already collided with ISS on many occasions, but these debris to date have not affected the safety of the crew or the operation of the mission. “The dedicated debris shields on ISS can withstand particles as large as 1 cm in diameter,” he said.

The piece of space junk was detected too late for the station to perform an evasive maneuver, so the crew was told to “shelter in place” on the two Soyuz spacecrafts. The crew on board is commander Andrey Borisenko, Alexander Samokutyaev and Ronald Garan, who took shelter aboard the Soyuz TMA-21 spacecraft docked to the Poisk module, and Sergei Volkov, Michael Fossum and Furukawa who went on to the Soyuz TMA-02M spacecraft docked to the Rassvet module.