11.10.09

LCROSS - Friday morning's excitement

Friday morning's excitement — blasting a lunar crater with twin 6,000 mile-per-hour impacts — left the LCROSS controller team dead on its feet, says NASA's Grey Hautaluoma. Meanwhile, the science team is frantically looking into observations flowing from telescopes, spacecraft and the LCROSS "shepherd" vehicle, which caught sight of its booster's 7:31 a.m. ET impact crater, before plowing into the Cabeus crater on the moon's South Pole itself, four minutes later.

NASA has selected a final destination for its Lunar Crater Observation and Sensing Satellite (LCROSS) which will impact the crater Cabeus A on 9 October.

LCROSS will search for water ice by sending i

ts spent upper stage Centaur rocket to impact the permanently shadowed polar crater at the lunar south pole, while the satellite will fly through the plume of debris thrown up by the impact to measure its properties. After the first impa

ct, and just four minutes later, the LCROSS satellite will too meet its fate in the crater, while the Moon-orbiting Lunar Reconnaissance Orbiter and Earth-based telescopes look on in the search for watery signatures. Shrouded in darkness for billions of years, this is the first time that such pristine material will be exposed to sunlight.



LCROSS Project Site
Visit the NASA Mission Site @ http://www.nasa.gov/lcross

Find out where and how to observe the LCROSS impacts on Oct. 9, 2009:
http://www.nasa.gov/mission_pages/LCROSS/impact/index.html

Mauna Kea Observatories LCROSS Impact Webcast
Look in as the greatest telescopes on Earth observe the LCROSS impact.
Friday, Oct 9 at 3:30 AM PDT to 6:45 AM PDT
WMV and Flash: http://dln.nasa.gov/dln/content/webcast/
Quicktime: rtsp://a1884.l1857041883.c18570.g.lq.akamaistream.net/D/1884/18570/v0001/reflector:41883
This webcast will also be archived for later viewing.

7.9.09

65 million people actively using Facebook from mobile devices


facebook announced today it has reached a milestone of 65 million people actively using Facebook from mobile devices. According to the company, that is an increase from just 20 million as recent as 8 months ago.

Facebook gets over a third of the number of unique visitors that Google does according to comScore. And it continues to grow. Compete shows the lines between Google and Facebook getting closer together:

"It seems inevitable that, given Facebook's sheer scale (180 million registered users and counting), it would at some point start referring a lot of users to some sites, but the development is surprising," says AdAge's Michael Learmonth. "Web users go to Google to figure out where to go next; they go to Facebook to, well, hang out."



"As we celebrate 65 million, we want you to be able to take Facebook with you wherever you go," says Facebook's Henri Moissinac. "That's why we are continuously making updates to our mobile products and working with some of the biggest names in mobile to make sure that Facebook is available on the latest devices and mobile operating systems."

Facebook Mobile

Moissinac outlines the various options users have for connecting with Facebook from their mobile devices:

- Mobile web sites
- Text messages
- Facebook Mobile for Devices
- Facebook Connect for Mobile Web

Facebook has two mobile web sites: m.facebook.com and x.facebook.com, the latter specifically designed for touch screen phones. Each of these sites has been translated into over 60 languages. Facebook Mobile for Devices means Facebook apps for different phones like the iPhone, and Nokia's N97 and 5800, and various apps for INQ, HTC, LG Electronics, Motorola, Palm, RIM, Samsung, Sony Ericsson, the T-Mobile Sidekick, and Windows Mobile devices. Facebook Connect is of course available from a multitude of sites, and Facebook says that starting today, you'll begin seeing Facebook Connect available on some mobile sites and applications, just like on the web.

25.5.08

Russia has been developing missile defense systems since the early 1960s.


MOSCOW. (Yury Zaitsev for RIA Novosti) - Thirty years ago, on May 15, 1978, a missile defense system was placed on combat duty to protect Moscow as the capital city of the Soviet Union.
Russia has been developing missile defense systems since the early 1960s.
On March 1, 1961, the Soviet Air-Defense Force conducted the first hit-to-kill test when a V-1000 missile interceptor developed by the Fakel (Torch) design bureau under the supervision of Pyotr Grushin, a member of the Soviet Academy of Sciences, successfully destroyed the warhead of an R-12 inter-continental ballistic missile (ICBM) launched from the Kapustin Yar space center in the Volga Region.
Several R-5 medium-range ballistic missiles were destroyed during subsequent tests.
The United States was able to conduct similar tests only 23 years later.
In 1961-1971, Soviet experts developed the experimental A-35 missile-defense system around Moscow. The system became operational in June 1971 and protected the Soviet capital and surrounding industrial areas.

At that time, the United States, which lacked similar systems, was compelled to negotiate with the Soviet Union. In 1972, Moscow and Washington signed the Anti-Ballistic Missile (ABM) Treaty that served as the main element of mutual nuclear parity for several decades.
Under the treaty both sides agreed that each could only have two ABM deployment areas that were heavily regulated and placed so that they could not provide a nationwide ABM defense or become the basis for developing one. Each country thus left unchallenged the penetrating capability of the other's retaliatory missile forces. Both parties agreed to limit the quantitative improvement of their ABM technology.

In 1974, both countries signed a protocol to the treaty which entered into force in 1976 and reduced the number of ABM deployment areas to one, either around either side's national capital area, or as a single ICBM deployment area.
The United States elected not to deploy an ABM system and in 1976 deactivated its ineffective site at Grand Forks, North Dakota, around a Minuteman ICBM launch area.
Although the 1971 Soviet ABM system became obsolete even before it was commissioned, the ABM Treaty allowed Moscow to upgrade it. On May 15, 1978, the more advanced A-35M system was placed on active duty around Moscow.


However, the United States subsequently embarked on an ambitious multiple independent reentry vehicle (MIRV) program which nullified the Soviet system's capabilities.
Russia's A-135 ABM system capable of coping with MIRVed ICBMs was developed and commissioned in 1995 and 1996, respectively. The system hinged on the Don-2N multi-role radar and a command computer inside a truncated tetrahedral pyramid. Silo-based missile interceptors were deployed along the A-108 highway, also known as the Greater Moscow Belt Highway, in the Moscow, Kaluga and Yaroslavl Regions.
The missile-defense system around Moscow had to be constantly upgraded in order to deal with new threats. Unfortunately, federal allocations were not enough to ensure its combat readiness.
The situation became particularly serious in the late 1990s when ABM allocations accounted for just 1% of those made in the 1980s.
Moscow feared that it might lose the scientific and technical ABM potential accumulated since the late 1950s. The situation improved only in recent years. Under the national rearmament program until 2010, approved by former President Vladimir Putin, minimal R&D levels in this sphere will be reinstated.
The Russian rearmament program was adopted in response to new U.S. missile-defense plans stipulating the deployment of space-based attack weapons. Washington may decide to return to the Brilliant Pebbles project, a non-nuclear system of satellite-based, watermelon-sized mini-missiles designed to use a high-velocity kinetic warhead under the Strategic Defense Initiative (SDI) program.

At any rate, Washington rejects all Russian and Chinese initiatives aimed at preventing the militarization of outer space.
It would be appropriate to recall that the Reagan Administration spent $3.4 billion a year on ABM defenses; such allocations totaled over $5 billion under George H. W. Bush and Bill Clinton; President George W. Bush persuaded Congress to allocate $8 billion per year.
Many military analysts believe that both sides should agree on specific parameters for assessing the mutual strategic nuclear and missile-defense balance. Increases in one area will require reductions in others. However, Washington will never agree with this fair approach because it runs counter to its military doctrine aimed at ensuring undisputed U.S. military-technical superiority.
Nor should Russia become involved in another ABM race because it cannot afford to develop and deploy a national missile-defense system reliably protecting a huge territory of our country at present or in the foreseeable future.
Instead, Moscow should opt for an asymmetrical response and develop weapons capable of breaching missile defense systems.
Yury Zaitsev is an academic adviser at the Russian Academy of Engineering Sciences.

25.2.08

Free Auto Insurance Quote

Auto insurance risk selection is the process by which vehicle insurers determine whether or not to insure an individual and what insurance premium to charge. Depending on the jurisdiction, the insurance premium can be either mandated by the government or determined by the insurance company in accordance to a framework of regulations set by the government. Often, the insurer will have more freedom to set the price on physical damage coverages than on mandatory liability coverages.
When the premium is not mandated by the government, it is usually derived from the calculations of an
actuary based on statistical data. The premium can vary depending on many factors that are believed to have an impact on the expected cost of future claims. Those factors can include the car characteristics, the coverage selected (deductible, limit, covered perils), the profile of the driver (age, gender, driving history) and the usage of the car (commute to work or not, predicted annual distance driven).

6.2.08

Spy Satellite on Out There Contain a Toxic Chemical

Air Force Gen. Gene Renuart, who heads of U.S. Northern Command, told The Associated Press on Tuesday that the size of the satellite suggests that some number of pieces will not burn up as the orbiting vehicle re-enters the Earth's atmosphere and will hit the ground.

A U.S. official confirmed that the spy satellite is designated by the military as US 193. It was launched in December 2006 but almost immediately lost power and cannot be controlled. It carried a sophisticated and secret imaging sensor but the satellite's central computer failed shortly after launch. The official spoke on condition of anonymity because the information is classified as secret.

"We're aware that this satellite is out there," Renuart said. "We're aware it is a fairly substantial size. And we know there is at least some percentage that it could land on ground as opposed to in the water."

Renuart added that, "As it looks like it might re-enter into the North American area," then the U.S. military along with the Homeland Security Department and the Federal Emergency Management Agency will either have to deal with the impact or assist Canadian or Mexican authorities.

Renuart added that there does not as yet appear to be much concern about sensitive technologies on the satellite falling into enemy hands.
"I'm not aware that we have a security issue," he said. "It's really just a big thing falling on the ground that we want to make sure we're prepared for."

The satellite includes some small engines that contain a toxic chemical called hydrazine - which is rocket fuel. But Renuart said they are not large booster engines with substantial amounts of fuel.
In the past 50 years of monitoring space, 17,000 manmade objects have re-entered the Earth's atmosphere. (news reff.)
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