Space Exploration Archives

March 1, 2011December 24, 2015 by Nancy Atkinson

No-go for ‘Fly About’ Photo-Op at Space Station

Discovery docked at the ISS for the STS-133 mission, with the robotic Dextre system in the foreground. Credit: NASA

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The international partners have decided against an historic ‘fly-about’ of the International Space Station, which would have provided one-of-a-kind images of the nearly completed ISS with space shuttle Discovery and an assortment of vehicles from the different participating space agencies docked to the station.

“This morning, our Russian colleagues, after doing their own independent review processes … have determined that they are not in position to recommend doing the fly about, because this particular vehicle is what they consider a new vehicle, the Series 700 vehicle, which is in its maiden flight,” said Kenneth Todd, a manager for Mission Integration and Operations at NASA, speaking at a mission briefing this morning.

The Russians felt they didn’t have the time or opportunity to fully understand, review and work through all the risks of the request of flying the Soyuz around the ISS, an idea which was presented only recently, and after the new Soyuz had already launched to orbit.

“From a MMT perspective, we knew it was critical for all partners to go through their processes,” Todd said. “It wasn’t necessarily what we were hoping to get back, but at the same point I applaud the Russians for doing the right thing, for not disregarding their own processes and making sure they do their own due diligence the way they should. I accepted the recommendation.”

Mission Control in Houston radioed up to ISS commander Scott Kelly and STS-133 Commander Steve Lindsey that the possible Soyuz fly about was a no-go, even though mission managers had already approved an extra day extension of the shuttle mission.

“We’ll now use that extra day for transfer work between the PMM (Permanent Multipurpose Module) and the ISS, to leave the station and crew in the best possible shape when Discovery undocks.” said Capcom Stan Love. “The fly about will not happen during this flight.”

The fly-about –- only proposed about two weeks ago — would have had cosmonauts Alexander Kaleri and Oleg Skripochka along with Kelly to undock from the Russian Poisk module in the Soyuz TMA-01M spacecraft, back away from the ISS so they could show the ISS in its nearly completed configuration, with the shuttle attached, along with the Russian Progress and Soyuz, the European ATV and the Japanese HTV-1.
Todd said the images would not only be historic from an aesthetic perspective, but also provide valuable engineering views and data.

“There are multiple reasons this was going to be a good thing, to do this photo documentation,” he said. “Everytime we do one of these things we learn a lot, and we get a lot of good data about our ability to do this type of function, not just on our side but on the Russian side. I don’t see our review of this as wasted time or effort, and if we ever need to do this in the future, we will have to assess that at the time.”

Todd added that they should be able to get most of the images and data they were hoping for when the shuttle undocks and departs from the ISS next week – save for the historic aspect of having a shuttle docked to the station, along with all the other visiting vehicles.

Image above: In between the Soyuz TMA-20 spacecraft and the space shuttle Discovery, the Permanent Multipurpose Module, attached to the station's robotic arm, is installed to the Earth-facing port of the Unity module. Image credit: NASA TV

Earlier today, the crews of STS-133 and the space station successfully installed the Leonardo Permanent Multipurpose Module, essentially storage space (a “float-in” closet – which has also been referred to as a potential Man-cave) which includes supplies. Also tucked inside is Robonaut-2, the first human-like robot to serve on board the space station.

Discovery’s landing is currently set for 11:36 am EST on Tuesday, March 8, 2011.

February 28, 2011December 24, 2015 by Ken Kremer

Endeavour Rolls to Vehicle Assembly Building for Final Flight

Endeavour was rolled a few hundred yards from the Orbiter Processing Facility to the Vehicle Assembly Building (VAB) at the Kennedy Space Center on Feb. 28. Credit: Alan Walters - awaltersphoto.com

[/caption]NASA’s Space Shuttle Program is inexorably and swiftly headed towards its finale.

With shuttle Discovery orbiting some 200 miles overhead on her final flight, launch preparations for the final flight of Space Shuttle Endeavour moved into high gear.

Endeavour was rolled a few hundred yards from her processing hanger at the Kennedy Space Center to the Vehicle Assembly Building (VAB) where she will be attached to the external fuel tank (ET) and twin solid rocket boosters (SRB) which will power her final trip to space. See photo album below from Alan Walters and Ken Kremer.

NASA plans to transport Endeavour to Launch Pad 39 A on March 9 for the STS-134 missionand her 25th and final flight. Launch is set for April 19.

Rollover of Endeavour. Credit: Alan Walters - awaltersphoto.com

Endeavour and her six person crew will deliver the Alpha Magnetic Spectrometer, a $1.5 Billion particle physics detector designed to search for dark matter and determine the origin of the Universe. The crew will also deliver a platform that carries spare parts platform parts that will sustain station operations once the shuttles are retired later this year.

The quarter mile trip on a 76 wheeled transporter began about 7 AM this morning (Feb 28). The orbiter was backed tail first out of the processing hanger known as the Orbiter Processing Facility and then ‘rolled over’ to the VAB and parked close to the entrance doors.

Rollover marks the start of the final phase of launch preparations for the STS-134 mission. Hundreds of Shuttle workers who process the orbiters for flight were invited to witness the event and pose for photo ops with the spaceship. Most KSC employees never get the chance to glimpse the orbiters up close.

The next major milestone is for Endeavour to be hoisted and mated to the External Tank on Tuesday and prepare for rollout to the launch pad.

STS 134 astronauts pilot Gregory Johnson and Italian flight engineer Roberto Vittori watch Rollover of Endeavour on Feb 28. Credit: Ken Kremer

Rollover of Endeavour. Credit: Ken Kremer

February 28, 2011December 24, 2015 by Jason Rhian

Review: Apollo 12 On the Ocean of Storms

David M. Harland has detailed man's first precision landing on the moon in: Apollo 12 On the Ocean of Storms. Image Credit: Spinger/Praxis

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As one chapter in manned space flight draws to a close, it is human nature to look back, to draw parallels and to remember similar points in time. A new offering from Springer-Praxis details man’s second landing on the surface of another world, the 1969 mission of Apollo 12. The book is entitled; Apollo 12 On the Ocean of Storms. Strangely, this is the first time that the full story of man’s first trip to the Ocean of Storms has ever been written down. The story in-and-of-itself is compelling, filled with peril, discovery and friendship.

President Nixon was at the launch, but a storm had blown in. The launch went ahead regardless and the Saturn V rocket thundered into the sky – where it was struck twice by lightning. The lightning traveled down the rocket’s plume and struck the pad. On board the Yankee Clipper (the Command Module in which the crew rode), fuel cells, inertial guidance platform and telemetry system went offline.

EECOM John Aaron in Mission Control, with the help of Lunar Module Pilot Alan Bean, saved the day by remembering an obscure procedure, and once in orbit the spacecraft was restored to full operation.

By setting down on the Moon close by an unmanned probe, Apollo 12 showed that precision lunar landings were possible, that microbes could survive for years inside such a robot in that harsh environment – and that friends can make the best crewmates.

This is just a tiny hint of the richly detailed story that is Apollo 12. When it came time to select an author to tell this tale, Springer tapped one of the best in the business – David M. Harland.

Harland is one of the most prolific, accurate authors in his field of expertise – aerospace history. As such, when he started to cover the Apollo era, fans were waiting with great anticipation for his chronicles covering the greatest era in human exploration.

apollo_12_crew — The crew of Apollo 12, from left-to-right, Pete Conrad, Dick Gordon and Alan Bean. Photo Credit: NASA

“I wrote this book as part of my series on NASA’s Moon program. I started with Apollo 11, and will work sequentially with books devoted to each of the missions which landed on the Moon, explaining the planning, assembly of the vehicles, launch through to splash, and the scientific insight gained,” said Harland during a recent interview. “People tend to remember the Apollo 8 flight around the Moon at Christmas 1968, the Apollo 11 landing, and the aborted Apollo 13 mission. Yet the missions which followed Apollo 11 and landed on the Moon were far more than ‘flags and footprints’, they were scientific exploration – indeed as one of the astronauts said, ‘exploration at its greatest’. I’m delighted that Springer-Praxis has given me the freedom to write this series.”

Springer Praxis has developed a virtual library’s worth of books regarding space flight. Apollo 12 On the Ocean of Storms is a very worthy addition to this collection and can be found online at Amazon.com. The book includes 530 pages with dozens of historic, color images.

bean_conrad_full — Alan Bean looks out on the moon's Ocean of Storms. David M. Harland has produced a vivid, detailed account of this amazing journey in Apollo 12 On the Ocean of Storms. Photo Credit: NASA

February 27, 2011December 24, 2015 by Jason Rhian

Leland Melvin remembers the past as he looks forward

Leland Melvin (right) talks education at NASA's Kennedy Space Center. He is standing next to Stephan Turnipseed, president of LEGO Education North America. Photo Credit: Mike Killian

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CAPE CANAVERAL – Most people struggle to find a new path when their primary career ends unexpectedly. Some say that it’s hard to get ahead in this world. Then there are those that prove it is possible to have a vibrant second career and that it is possible to make it – in spades. Leland Melvin is one of those people.

Back in 1986 it seemed he would be a wide receiver for the NFL. Then an injury sidelined him when he was training with the Detroit Lions. He tried again the following spring with the Dallas Cowboys – but the same injury resurfaced and dashed his NFL hopes. Few manage to pull off a second high-caliber career after such a setback. But Melvin did just that – he went on to join one of America’s most elite clubs – he became an astronaut.

He went on to fly on two space shuttle missions, STS-122 and STS-129, both onboard Atlantis, both to the International Space Station (ISS).

2009-6326-m — Melvin suits up in preparation to launcing with his Atlantis crewmembers to orbit. Photo Credit: NASA

He didn’t start out with the plan to be an astronaut however; in fact he really didn’t think that he would work for the space agency. A job fair, of all things, helped him become an engineer at NASA’s Langley Research Center.

“I really didn’t think I wanted to be with NASA,” Melvin said during an interview at NASA’s Kennedy Space Center just before the shuttle Discovery launched on its final mission. “This one lady would have none of it. I helped her with her bags and she helped me with my career.”

Melvin got accepted as an astronaut in 1998. However, he never drifted far from his roots – and those were firmly planted in education. After he completed his missions to space, his mind and his path went back to education. In October of 2010 he was selected as NASA’s Associate Administrator for Education.

2009-6357-m — Leland Melvin was a mission specialist on STS-129 which launched to the International Space Station in 2009. Photo Credit: NASA

Since selected he has worked to make NASA’s education elements a more hands-on affair. Melvin has become a tireless advocate of NASA’s Summer of Innovation, Explorer Schools as well as the numerous other education programs that the space agency supports. One of his responsibilities is to raise public awareness about how much NASA does to support education. It was in that capacity that he was at Kennedy Space Center on launch day.

For some, coming down to a shuttle launch is a perk of the job; Melvin seemed far more interested with getting the word out about NASA’s educational outreach efforts, jumping from one interview to the next.

2009-6198-m — Leland Melvin was all set to play in the NFL before an injury changed his plans. He became an astronaut, but still remains dedicated to the goal of education. Photo Credit: NASA

“People really don’t realize how much of a tremendous investment that NASA truly is,” said Melvin. “Basically, for every dollar they put in – they get eighteen dollars in return. Out of every tax dollar, I think it boils down to one-seventh of one cent goes to NASA – for that the public gets the astronaut corps, the shuttle, space station, all the probes to the planets, on and on…it’s really an incredible deal.”

Melvin’s life has been shaped by education, from his parents, to his experiences in college and now with NASA. Sometimes, Melvin takes a second from the frenetic pace of his job and looks back.

“Education has always been important to me, I got that from my parents,” said Melvin. Both of his parents were teachers, a fact he is reminded about whenever he visits his hometown of Lynchburg, Virginia. “People still come up to me and thank me for what my father did for them.”

2009-6409 — Leland Melvin sees his experiences with NASA as proof that people can do pretty much whatever they want to - they just have to set their minds to it. Photo Credit: NASA

February 26, 2011April 26, 2016 by Ken Kremer

Discovery Docks at Space Station on Historic Final Voyage with First Human-Robot Crew

Space Shuttle Discovery linked up to the International Space Station (ISS) today, Feb. 26, for her 13th and final time on her historic last mssion to space. Credit: NASA

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Space Shuttle Discovery linked up to the International Space Station (ISS) today, Feb. 26, on her historic final voyage and still charting new frontiers by carrying the first ever joint space crew of humans and robots.

The all veteran human crew is comprised of five men and one women including Commander Steve Lindsey, Pilot Eric Boe and Mission Specialists Alvin Drew, Steve Bowen, Michael Barratt and Nicole Stott. For the first time in the history of manned spaceflight, the humans are joined by a robotic companion named R2 or Robonaut 2. R2 is the first humanoid robot in space and will become an official member of the ISS crew.
See Discovery Launch, Docking and Robonaut photo album below.

Discovery docked at the ISS at 2:14 p.m. EST at the Harmony node while flying some 220 miles above western Australia. The shuttle arrived after a two day orbital chase that commenced with a picture perfect blast off on Feb. 24 from the Kennedy Space Center in Florida.

Shuttle Commander Steve Lindsey manually flew Discovery to join the two ships together. They have a combined mass of over 1.2 million pounds. This was Discovery’s 13th and final docking to the orbiting outpost. Discovery also was the first shuttle to dock to the ISS on the STS-96 mission on May 29, 1999.

After allowing the relative motions between the two ships to dampen out, the vehicles were then hard mated together. Hatches between the spacecraft were opened at 4:16 p.m. EST and the six Shuttle astronauts floated through the docking tunnel and into the station. They were welcomed by the six current residents already living and working aboard the ISS and thereby doubled the ISS human population to 12.

Prior to docking, Discovery executed a spectacular head over heels “back flip” with Commander Lindsey at the controls so that ISS crew members Paolo Nespoli and Cady Coleman could take hundreds of high resolution photographs of the shuttles critical heat shield tiles.

Over a period of nine minutes, Discovery rotated backward through a full 360 degrees during the dramatic maneuver with Earth as the backdrop.

The fragile thermal protection system (TPS) tiles protect the orbiter from the scorching heat generated during reentry through the Earth’s atmosphere. Specialists on the ground at the Johnson Space Center will pore over the images to look for any signs of tile damage which may have occurred during launch or on orbit.

Discovery’s cargo bay is loaded with a large new pressurized storage room and critical space parts for the space station. The primary goal of the STS-133 mission is to attach the new Permanent Multipurpose Module named “Leonardo” to the ISS which will provide additional living space for the station crews.

R2 is packed inside Leonardo along with science equipment, spare parts, clothing, food and assorted gear. The robot will serve as an assistant to the ISS astronauts and conduct science experiments and maintenance chores.

The twin brother of the R2 Robonaut and their NASA/GM creators at KSC.
Robonaut 2 and the NASA/GM team of scientists and engineers watched the launch of Space Shuttle Discovery and the first joint Human-Robot crew on the STS-133 mission on Feb. 24, 2011 from the Kennedy Space Center. Credit: Ken Kremer

See a stunning 360 degree panorama of Robonaut 2 at KSC from nasatech.net at this link

The twin brother of R2 eagerly watched the Feb, 24 blastoff of Discovery and crew live from nearby the famous countdown clock at the Kennedy Space Center.

The 11 day flight includes two spacewalks.

With Discovery safely docked , the ISS is now the biggest it has even been and is currently configured with all vehicles which fly to the station including the newly arrived ATV from Europe, HTV from Japan and Soyuz and Progress spacecraft from Russia.

The ATV itself arrived docked barely 4 hours before Discovery in a critical operation that paved the way for blastoff of the STS-133 mission and reflects the magnitude of the ongoing orbital traffic jam at the ISS.

If all the STS-133 work is successfully accomplished, a Soyuz will undock towards the end of the STS-133 mission and stage a station fly around to capture the ultimate ISS photo op at the biggest it will ever be.

Launch of Space Shuttle Discovery on Feb. 24 at 4:53 p.m.
from launch pad 39 A at the Kennedy Space Center. Credit: Ken Kremer

Photo Album: Discovery executes dramatic back flip or Rendezvous Pitch Maneuver (RPM) as it approaches and docks at the ISS on Feb. 26, 2011

Discovery launches on 39th and final flight to space on STS-133 mission. Credit: Ken Kremer

Discovery’s arc to orbit on Feb. 24 with first Human-Robot crew. Credit: Ken Kremer

The six person crew of Space Shuttle Discovery in their orange launch and entry flight suits
wave to large and enthusiastic crowd of space shuttle workers and media spectators before heading to the launch pad in the Astrovan for the STS-133 mission. From left are Mission Specialists Nicole Stott, Michael Barratt, Alvin Drew and Steve Bowen; Pilot Eric Boe; and Commander Steve Lindsey. Discovery will deliver the Permanent Multipurpose Module, packed with supplies and critical spare parts, as well as Robonaut 2 to the ISS. Credit: Ken Kremer

February 25, 2011December 24, 2015 by Nancy Atkinson

STS-133 Launch Day Gallery

Discovery just moments after her final liftoff. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

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Here’s a collection of images from the historic final launch of space shuttle Discovery on February 24, 2011.

Discovery's final launch. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

Just after SRB light. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

Discovery just after liftoff. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

Space shuttle Discovery heads to space after lifting off from Launch Pad 39A at NASA's Kennedy Space Center in Florida to begin its final flight to the International Space Station on the STS-133 mission. Launch was at 4:53 p.m. EST. Credit: NASA

STS-133 launch as seen from the KSC press site. Credit: Jason Rhian

NASA management watch the launch of space shuttle Discovery (STS-133) from the firing room at Kennedy Space Center, Thursday, Feb. 24, 2011, in Cape Canaveral, Fla. Credit: NASA/Bill Ingalls.

In Firing Room 4 of the Launch Control Center at NASA's Kennedy Space Center in Florida, NASA's Discovery Flow Director Stephanie Stilson, left, STS-133 Assistant Shuttle Launch Director and lead NASA Test Director Charlie Blackwell-Thompson and Shuttle Launch Director Mike Leinbach watch space shuttle Discovery blaze a trail of smoke and steam as it heads toward orbit on the STS-133 mission to the International Space Station. Credit: NASA

Main engine start. Credit: Nancy Atkinson

View from the KSC press site of the STS-133 launch. Credit: Nancy Atkinson

STS-133 launch, just before solid rocket booster separation. Credit: Nancy Atkinson

STS-133 launch. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

A closeup of Discovery in flight. Credit: NASA

The STS-133 crew walks out to head to the launchpad. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

The STS-133 crew in front of the 'Astro Van' that brings them to the launchpad. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

Astronaut Leland Melvin talks with participants in the NASA Tweetup for STS-133 at KSC before the launch. Credit: Nancy Atkinson

Members of the NASA Tweetup for STS-133 gather for a photo. They finally got to see their mission launch, after waiting nearly four months. Surprisingly, over 100 of the original 150 were able to return on Feb. 24 for the launch. Credit: Nancy Atkinson

The media descends on KSC for the STS-133 launch. Credit: Nancy Atkinson

At NASA's Kennedy Space Center in Florida, space shuttle Discovery is seen shortly after the rotating service structure was rolled back at Launch Pad 39A. Image credit: NASA/Jack Pfaller Feb. 23, 2011

Discovery bathed in lights after the RSS was retracted on Feb. 23, 2011. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

The crew of STS-133 stands in front of Discovery on the launchpad. Credit: Alan Walters (awaltersphoto.com) for Universe Today.

February 24, 2011December 24, 2015 by Nancy Atkinson

STS-133 Launches on Historic Final Mission for Shuttle Discovery

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.

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.

Here’s our huge gallery of launch images and here’s a video of the launch from NASA TV:

February 24, 2011April 26, 2016 by Nancy Atkinson

Can’t Get to Today’s Launch? See the Space Shuttles in Intricate Detail

Space shuttle Discovery from a unique perspective. Credit: John O'Connor from NASATech

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We’ve mentioned the NASATech website before, but this unique website and the incredible images by John O’Connor bear repeating. And for those of you wishing you were at the STS-133 launch today but can’t be here, seeing John’s high resolution, pan-able images is almost better — you’ll probably never get as close to the orbiters as these images can bring you. The image above is a screen clip of space shuttle Discovery on the launchpad, from the perspective of looking up at the orbiter from standing by the right OMS pod, and I was looking at another of John’s images of Endeavour in the Orbiter Processing Facility where I was able to read the markings on each of the heat-resistant tiles on the orbiter’s underside. John creates extremely high resolution virtual tours, and the interactive 360 degree images he creates are nothing short of stunning — but they are also very bandwidth intensive — so be prepared, and watch out if you don’t have high speed internet or if you have a lot of browsers or windows open on your computer.

Right now on his website you can see different views of Endeavour preparing for the next mission, STS-134, and scroll down a bit to find all sorts of images of Discovery from several different perspectives. See her before she launches on her final mission, STS-133.

John describes his photography work on his website as “featuring the people, the technology, and the mission of the Kennedy Space Center and the Cape Canaveral Air Force Station. Compiled within is a unique gallery of the inner workings of America’s reach for the stars.” Beautiful!

February 24, 2011December 24, 2015 by Ken Kremer

Discovery and Robonaut Unveiled for February 24 Blast Off

The twin brother of the R2 Robonaut awaits launch of Space Shuttle Discovery on the STS-133 mission, its 39th and final fligh to space. Credit: Ken Kremer

[/caption]Space Shuttle Discovery is unveiled for blastoff at 4:50 p.m. today, Feb. 24 from launch Pad 39 A at the Kennedy Space Center in Florida . This is roughly the moment when Earth’s rotation carries the launch pad into the plane of the orbit of International Space Station (ISS)

The rotating service structure was retracted on Wednesday night starting around 8 p.m. Feb. 23 over about 25 minutes under a light fog.

In a major milestone, the External Fuel tank has been successfully loaded with 535,000 gallons of liquid hydrogen fuel and liquid oxygen to power Discovery’s three main engines during the 8 1/2-minute climb into orbit. A dangerous leak of gaseous hydrogen is what caused the launch scrub last Nov. 5.

Pumps will continue to trickle propellants into the tank to replace the small amounts that evaporate during the countdown.

It’s an absolutely gorgeous day here at KSC with clear blue skies, calm winds and a crackling excitement that permeates the air for everyone here for the launch.

Discovery unveiled for Feb 14 launch with 6 astronauts and R2 Robonaut on STS-133 mission.. Credit: Alan Walters, awalterphoto.com

The weather forecast has been upgraded to 90% GO from 80% yesterday which was cloudy and overcast. A few low lying clouds are the only concern.

Large public crowds have gathered at public viewing areas along Florida’s Space Coast. The hotels are full of folks excited to see the historic final launch of Discovery on its 39th and final mission.

The Johannes Kepler ATV is due to dock at the ISS at about 12 noon. A successful docking is an essential prerequisite to clear Discovery for liftoff.

The countdown clock is ticking down towards the final blastoff of Discovery.

The veteran crew of five men and one woman led by Shuttle Commander Steve Lindsey arrived on Sunday on a wave of T-38 jets.

The primary goal of the STS-133 mission is to deliver the “Leonardo” Permanent Multipurpose Module to the ISS. The R2 Robonaut is packed Inside Leonardo along with science equipment, spare parts, clothing food and assorted gear.

The twin brother of R2 is on hand at KSC to watch his brothers launch. He also sports a fancy new set of wheels patterned after the rocker bogie system of NASA’s Mars rovers Spirit and Opportunity.

February 23, 2011December 24, 2015 by Ken Kremer

Sounds of Comet Tempel 1 smashing into Stardust-NExT

News conference held Feb. 15 following the flyby of comet Tempel 1 by the Stardust-NExT spacecraft on Valentine's Day, Feb. 14. The spacecraft's closest approach was a distance of 112 miles. Participants are: Ed Weiler, NASA's associate administrator, Science Mission Directorate, Washington; Joe Veverka, Stardust-NExT principal investigator, Cornell University; Tim Larson, Stardust-NExT project manager, NASA's Jet Propulsion Laboratory, Pasadena, Calif.; Don Brownlee, Stardust-NExT co-investigator, University of Washington, Seattle; and Pete Schultz, Stardust-NExT co-investigator, Brown University.

As Stardust-Next was racing past Comet Tempel at 9.8 km/sec, or 24,000 MPH, it encountered a hail of bullet like particles akin to a warplane meeting the fury of armed resistance fighters which potentially could have utterly destroyed the probe.

NASA has released a cool sound track of the sounds of thousands of cometary dust particles pelting Stardust-NExT. The audio was recorded by an instrument aboard the spacecraft called the Dust Flux Monitor which measures sound waves and electrical pulses from dust impacts.

Telemetry downlinked after the Feb. 14 flyby indicates the spacecraft flew through waves of disintegrating cometary particles.

“The data indicate Stardust went through something similar to a B-17 bomber flying through flak in World War II,” says Don Brownlee, Stardust-NExT co-investigator from the University of Washington in Seattle.

I contacted co-investigator Don Brownlee for further insight into the sounds and sights of the Tempel 1 flyby.

“The 12 biggest particles penetrated the centimeter thick front honeycomb plate of the whipple meteoroid shield and were detected with the Dust Flux Monitor Instrument,“ Brownlee told me. “The instrument had two type of sensors made in a collaboration between the University of Chicago and the University of Kent in the UK.
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The shielding was installed to protect Stardust from the hail of cometary particles during its prior flyby at Comet Wild 2 in 2004. Brownlee was the Principal Investigator for Stardust during its original mission at Wild 2.

I asked Brownlee if the shields were essential to the spacecraft surviving the Tempel 1 flyby ?

“Yes,’ he replied.

“A total of approximately 5,000 particle impacts were detected,” Brownlee said. This was over a period of about 11 minutes during closest approach. The movie is in real time and is a visual representation of the sounds. It covers just a portion of the flyby.

“Like at Wild 2, the particles came out in bursts and clumps. The Tempel 1 flyby, the Wild 2 flyby and the recent imaging of Comet Hartley confirm that fragmenting. Dust and ice clods are commonly released into space by comets.”

“The biggest at Wild 2 was about 0.5 cm and this time at Tempel 1 they were probably a bit bigger. The penetrating impacts at Tempel 1 were about twice what they were at Wild 2 ….. Also about twice as fast!”

“The data indicate Stardust went through something similar to a B-17 bomber flying through flak in World War II,” said Don Brownlee, Stardust-NExT co-investigator from the University of Washington in Seattle. “Instead of having a little stream of uniform particles coming out, they apparently came out in chunks and crumbled.”

To my eye, I was surprised that the flyby images seemed to surpass those at Wild 2. Brownlee agreed.

“I was surprised,” said Brownlee. “The team did a terrific job and the images are better than before. Tempel is a little closer to the sun, the flyby was a little closer, the pictures were taken at a much higher rate and the imaging team put in a great effort to plan the exposures and to clean up the camera before the encounter. The mirror was scanning at it’s maximum rate!”

Listen to the Stardust-NExT post flyby briefing

News conference held Feb. 15 following the flyby of comet Tempel 1 by the Stardust-NExT spacecraft on Valentine’s Day, Feb. 14. The spacecraft’s closest approach was a distance of 112 miles. Participants are: Ed Weiler, NASA’s associate administrator, Science Mission Directorate, Washington; Joe Veverka, Stardust-NExT principal investigator, Cornell University; Tim Larson, Stardust-NExT project manager, NASA’s Jet Propulsion Laboratory, Pasadena, Calif.; Don Brownlee, Stardust-NExT co-investigator, University of Washington, Seattle; and Pete Schultz, Stardust-NExT co-investigator, Brown University.