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-- Posted at 12:58 AM EDT, 05/21/11: Astronauts begin work to inspect damaged tile
-- Updated at 05:05 AM EDT, 05/21/11: Gouged heat shield tile inspected
-- Updated at 02:20 PM EDT, 05/21/11: MMT briefing delayed to 5 p.m. EDT
-- Updated at 04:20 PM EDT, 05/21/11: MMT briefing moved up to 4:30 p.m. EDT
-- Updated at 05:40 PM EDT, 05/21/11: MMT determines damaged tile no threat to safe re-entry
By WILLIAM HARWOOD
KENNEDY SPACE CENTER, FL--The shuttle Endeavour's crew used an
instrumented boom on the ship's robot arm Saturday to carry out a
close-up, focused inspection of a damaged heat shield tile on the belly
of the orbiter. By late afternoon, analysts concluded the damage posed
no threat to the orbiter and NASA's Mission Management Team cleared the
ship for re-entry as is.
"So all good results all the way around," said MMT Chairman LeRoy Cain.
"Ultimately, their recommendation to the MMT was that we clear this
area. In accepting that recommendation, we're essentially clearing the
vehicle for re-entry at this point. There were no dissenting opinions,
no alternate opinions, the entire team was pretty much on board with the
assessments that were done."
NASA managers were optimistic that would be the case, based on an
analysis of long-range telephoto views shot during Endeavour's final
approach to the station Wednesday, but the focused inspection was
ordered Friday to make absolutely sure.
The inspection work began after midnight when the space station's robot
arm was used to pull Endeavour's heat shield inspection boom, or OBSS,
out of the ship's cargo bay for hand off to the shuttle's 50-foot-long
arm. Pilot Gregory Johnson, overseeing a series of computerized
maneuvers, then positioned the arm under the shuttle's right side for
close-up photos and laser scans.
The imagery and laser scans showed the damage site measured 2.43 inches
by 2.95 inches with a maximum depth of .89 inches. Cain said the
analysis showed the aluminum structure below the damage site would
experience maximum temperatures of around 219 degrees Fahrenheit during
re-entry, well below the 350-degree safety limit.
"With this data, to include the laser data that the team was able to
acquire from the focused inspection, the analyses teams went back and
essentially what they did is verify how much tile is still in the
cavity," Cain said. "Because, of course, it's more important what
remains than it is what's gone, per se. What we're interested in is
protecting the structure underneath the tile and the associated
And based on that analysis, "it was clearly OK," he said.
To make doubly sure they were on solid ground, analysts created a
three-dimensional representation of the damage that had the uniform
shape required for computer modeling. As such, the computer model
assumed more damage than was seen in the actual gouge, "and in running
that analysis, they determined we still cleared with plenty of margin."
The astronauts went to bed no knowing the Damage Assessment Team
results, but Cain said they knew engineers were optimistic. With the
damage site cleared for entry as is, the astronauts will have one less
worry as they prepare for a second spacewalk Sunday to add ammonia
coolant to a space station solar array.
Here is a timeline of the crew's remaining schedule for flight day six
(in EDT and mission elapsed time; includes revision E of the NASA
television schedule; best viewed with fixed-width font):
12:56 PM...05...04...00...00...Garan sleep begins
01:26 PM...05...04...30...00...Shuttle crew sleep begins
02:00 PM...05...05...04...00...Replay of PAO event with Pope Benedict XVI
03:16 PM...05...06...20...00...ISS evening planning conference
04:30 PM...05...07...34...00...Mission Management Team briefing on NTV
05:31 PM...05...08...35...00...ISS crew sleep begins
06:45 PM...05...09...49...00...Flight director update on NTV
08:45 PM...05...11...49...00...Flight director update replay on NTV
09:26 PM...05...12...30...00...Shuttle crew wakeup
the ancient world, Athens and Rome were the pillars of modern
architecture and their influence not only spread across the world, but
over two millennia as well. Today, when we think of cities that are
showcases of modern architecture, New York, London, Shanghai, Dubai,
Paris and Berlin all come to mind. But right here in the American
heartland, there is one city that structure for structure may rival them
all: Columbus, Indiana.
Former first lady Ladybird Johnson once
referred to Columbus as the "Athens of the Prairie." And for good
reason, its buildings are designed by some of the greatest architects of
our time: Eero Saarinen, I.M. Pei, Robert Venturi, Richard Meier, and
the list goes on. That's why "CBS Sunday Morning" has chosen Columbus as
the broadcast site for our annual special edition "By Design."
after World War II, Americans began a love affair with the suburbs.
They were spacious, clean and offered all the amenities that returning
GIs and their growing families needed to live the good life. Now, almost
70 years later, that trend is reversing. People are returning to the
excitement and convenience of cities. In fact, as correspondent Seth
Doane reports in our "Sunday Morning" cover story, more than half of all
humanity lives in cities, and by 2050, nearly three quarters of us will
call a city home.
If you decide the urban life is for you and
you need to sell your home to get there, you may want to consider a
design makeover. More and more sellers caught up in this buyer's market
are hiring interior designers or "stagers" to make sure their houses
make the best impression possible. As correspondent Cynthia Bowers finds
out, hiring a stager can be an expensive proposition, but if you don't,
it could cost you.
Of course, the hustle and bustle of the city
isn't for everyone. For those of you more interested in contemplation
rather than urban vibration, a Zen garden may be just right for you.
Correspondent Lucy Craft takes us to Kyoto, Japan, for a look at some of
its celebrated rock gardens.
Beauty comes in many forms and in
the case of jewelry it can be had for a price, sometimes a hefty price.
But as correspondent Martha Teichner reports, it's not the price that
matters (you probably couldn't afford it anyway), it's the design.
Teichner gets an up close look at exquisitely crafted jewelry designed
by legendary jeweler Van Cleef and Arpels for some of the world's most
beautiful women including Marlene Dietrich, Elizabeth Taylor and
Jacqueline Kennedy Onassis.
Diane von Furstenberg knows a thing
or two about designing for women. After nearly four decades, her
clothing is still in vogue and worn by the likes of Jessica Alba,
Madonna and Jennifer Lopez. The Belgian-born designer first hit the
fashion scene with her body-hugging "wrap dress" in the early 1970s, a
dress so symbolic of the time that it now hangs in the Smithsonian.
Correspondent Anthony Mason visits von Furstenberg at her New York
studio for a look at her latest designs, which go far beyond the runway.
popularity of the "wrap dress" certainly got Diane von Furstenberg
noticed, but as hard as it is to believe, there are designers who prefer
their work go unnoticed. Miami dentist Mark Barsky is one of them. He
designs custom-made veneers that make teeth look whiter. He calls
himself a "smile architect" and only considers his work a success if it
doesn't call attention to itself. Correspondent Richard Roth reports on a
designer who is constantly striving for imperfection.
Those stories and more on a special edition of "Sunday Morning: By Design." Listen for the trumpet.
In case you missed them, here are the 10 most popular videos that appeared on MarketWatch for the week of May 16-20:
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Credit cards are safer than debit cards
scammers steal your debit-card pin number, your bank account may be at
risk. Fewer than half of banks promise zero-liability protection on
debit-card pin transactions, says MarketWatch's Andrea Coombes. Watch Video Report.
Analysts are suggesting that the new iPhone 5 may arrive in September, not June as previously expected, George Stahl reports. Watch Video Report.
What you should know about the LinkedIn IPO
networking service LinkedIn has priced its initial public offering of
shares at $45. John Letzing tells Stacey Delo what you need to know
before shares start trading Thursday. Watch Video Report.
Michael's customers' credit cards hacked
Zimmerman reports Michaels arts and crafts stores are warning customers
across the country that their credit card information may have been
obtained by hacker. Watch Video Report.
Winklevoss twins vow Supreme Court fight
not over yet. The storied fight between Facebook and the Winklevoss
twins may be heading to the Supreme Court, Simon Constable reports. Watch Video Report.
Where gas prices are headed from here
Soultanian, president of NUS Consulting Group, talks to Steve Gelsi
about why he expects gasoline prices to cool off over the summer and how
the Fed's monetary policy may ease pain at the pump in coming months. Watch Video Report.
A look inside the Fukushima Daiichi nuclear plant
Electric Power Co. released this video, filmed May 6, that illustrates
the scale of the damage at the Fukushima Daiichi nuclear power plant and
steps being taken to resolve the crisis. Watch Video Report.
Cody Willard ‘likes' LinkedIn, but not buying
Willard says he thinks LinkedIn is a better investment than RenRen,
which he said to "run run" from, but isn't a buyer of the professional
network's much anticipated initial public offering. He talks with Stacey
Delo. Watch Video Report.
considering strategic default need to know this before taking the leap:
The fact that you could have continued paying your mortgage, but chose
not to, could mean you'll face harsher consequences than those who
defaulted out of hardship. Read more: The higher costs of strategic default.
much-ballyhooed "risk-on" trade has catapulted the materials, energy
and industrials sectors for most of the past two years. But this ride
looks like it's come to an end — and that could be bad news for stock
bulls. Read more: 3 stock sectors set to dominate the market.
loves a healthy dividend-paying stock, but investors need to assess
companies carefully to make sure the payout is likely to continue. That
includes looking at the company's free-cash-flow yield. Read more: Pick dividend-paying stocks carefully.