A Storm of Comets
NASA – This artist’s conception illustrates a storm of comets around a star near our own, called Eta Corvi. Evidence for this barrage comes from NASA’s Spitzer Space Telescope, whose infrared detectors picked up indications that comets were recently torn to shreds after colliding with a rocky body. In this artist’s conception, one such giant comet is shown smashing into a rocky planet, flinging ice- and carbon-rich dust into space, while also smashing water and organics into the surface of the planet. A glowing red flash captures the moment of impact on the planet. Yellow-white Eta Corvi is shown to the left, with still more comets streaming toward it.
Spitzer detected spectral signatures of water ice, organics and rock around Eta Corvi — key ingredients of comets. This is the first time that evidence for such a comet storm has been seen around another star. Eta Corvi is the right age, about one billion years old, to experience a bombardment of comets akin to what occurred in our own solar system at 600 to 800 millions years of age, termed the Late Heavy Bombardment.
Scientists say the Late Heavy Bombardment was triggered in our solar system by the migration of our outer planets, which jostled icy comets about, sending some of them flying inward. The incoming comets scarred our moon and pummeled our inner planets. They may have even brought materials to Earth that helped kick start life. Image Credit: NASA/JPL-Caltech
Mitt Romney, former governor of Massachusetts, 2008 US presidential candidate. (Photo credit: Wikipedia)
By Juan Williams – Foreign policy is about to go center stage in the presidential race. This week Mitt Romney goes overseas to London, England, for the 2012 Olympics and later stops in Israel for a meeting with Prime Minister Benjamin Netanyahu.
The political strategy behind this trip — as it was behind candidate Barack Obama’s 2008 trip to Europe — is to demonstrate that the candidate is ready to be a world leader.
The Romney campaign’s critique of Obama’s “failed foreign policy,” comes down to charges of “leading from behind” and “apologizing for America.”
Yet, Obama’s actions during his first term have effectively taken away the GOP’s advantage on foreign policy. For the first time, foreign policy may well be an advantage for the Democrats. more> http://tinyurl.com/bmre8pm
- “Unprepared To Lead”: Romney To Look Abroad For Foreign Policy Credibility (mykeystrokes.com)
- Romney Planning Major Foreign-policy Tour: 5 Countries, 3 Continents… (politico.com)
- Are US-Israel Relations Heading for a Change? (israelnationalnews.com)
- Is a Foreign Policy Tour a Smart Move for Mitt Romney? (usnews.com)
- Mormons on cusp of new powerful era, Cameron Joseph, Hill
- Rewards and risks as Mitt Romney heads abroad amid campaign, Niall Stanage, Hill
- Opinion: Heading toward a Sept. surprise, Judd Gregg, Hill
- Amid a campaign of American exceptionalism, reminders of Romney’s international past, Jason Horowitz, Washington Post
Posted in Business, Economy, Leadership
Tagged Barack Obama, Benjamin Netanyahu, Foreign policy, Government, Israel, Leadership, London, Mitt Romney, United States
By Kathy Lally – While the euro zone stands on the precipice of financial disaster, Russia looks on with a safely balanced budget, very little debt, a steady ruble — and a shudder of fear.
Russia’s economy relies on oil — 60 percent of gross domestic product — and a deep recession in Europe would drastically slash demand and price, forcing major cuts in government spending and threatening to provoke widespread social protest. For several years, the leadership has been talking urgently about its intentions to diversify beyond natural resources, without actually doing anything.
Now, the threat of a deeper crisis in Europe is forcing Russia to get serious. more> http://tinyurl.com/csdw327
Posted in Banking, Business, Economy, Energy, Leadership
Tagged Credit, Energy, European Union, Eurozone, Financial crisis, Government, Government spending, Leadership, Russia, United States, Vladimir Putin
By Beth Stackpole – One new interesting example is in the field of regenerative medicine, specifically as part of an effort to build lab-grown organs out of a patient’s own cells.
One solution that has gained attention is to “print” cells for the vasculature, layer by layer, leaving openings for the blood vessels as required. Yet even this approach has had its share of setbacks. When blood is pumped through the vessels, the seams get pushed apart.
A team of bioengineers from the University of Pennsylvania and MIT took inspiration from a visit to a Body Worlds exhibit and decided to address the problem in a different way. They’ve applied the open-source RepRap 3D printer as a foundational technology solution and made templates of blood vessel networks out of sugar. more> http://tinyurl.com/cyooa7j
Posted in Healthcare, Product, Science, Technology
Tagged 3dPrinting, Blood vessel, Business improvement, Circulatory system, Health, Massachusetts Institute of Technology, MIT, University of Pennsylvania