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Posted: 5/23/2013 12:24:28 PM EST
Penny Pritzker testifies before a Senate Commerce, Science and Transportation Committee confirmation hearing on her nomination to be Commerce secretary on Capitol Hill in Washington May 23, 2013. REUTERS/Yuri Gripas
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Posted: 5/23/2013 12:24:28 PM EST
Penny Pritzker testifies before a Senate Commerce, Science and Transportation Committee confirmation hearing on her nomination to be Commerce secretary on Capitol Hill in Washington May 23, 2013. REUTERS/Yuri Gripas
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Posted: 5/22/2013 5:44:38 PM EST
Transportation Secretary nominee, Charlotte, N.C. Mayor Anthony Foxx testifies on Capitol Hill in Washington, Wednesday, May 22, 2013, before the Senate Commerce, Science and Transportation Committee hearing on his nomination. (AP Photo/Manuel Balce Ceneta)
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Posted: 5/22/2013 4:29:48 PM EST
Transportation Secretary nominee, Charlotte, N.C. Mayor Anthony Foxx testifies on Capitol Hill in Washington, Wednesday, May 22, 2013, before the Senate Commerce, Science and Transportation Committee hearing on his nomination. (AP Photo/Manuel Balce Ceneta)
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Posted: 5/16/2013 12:31:24 PM EST
The extraction of the nucleus from an egg cell is pictured in this January 31, 2012 handout photo from Oregon Health & Science University. Oregon Health & Science University/Handout via Reuters
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Posted: 5/15/2013 5:49:56 PM EST
Dr. Shoukhrat Mitalipov, a senior scientist at the Oregon National Primate Research Center in an undated photo. After more than 15 years of failures by scientists around the world and one outright fraud, biologists have finally created human stem cells by the same technique that produced Dolly the cloned sheep in 1996: They transplanted genetic material from an adult cell into an egg whose own DNA had been removed. REUTERS/Oregon Health & Science University
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Posted: 5/15/2013 12:25:21 PM EST
This undated image made available by the Oregon Health & Science University in May 2013 shows a stem cell colony developed from cloned human embryos. Scientists have finally recovered stem cells from cloned human embryos, a longstanding goal that could lead to new treatments for such illnesses as Parkinson's disease and diabetes. In the Wednesday, May 15, 2013 edition of the journal Cell, scientists at the Oregon Health & Science University report harvesting stem cells from six embryos. Shoukhrat Mitalipov, who led the research, said the success came not from a single technical innovation, but from revising a series of steps in the process. (AP Photo/Oregon Health & Science University)
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Posted: 5/15/2013 12:25:21 PM EST
This undated image made available by the Oregon Health & Science University in May 2013 shows developing cloned human embryos. Scientists have finally recovered stem cells from cloned human embryos, a longstanding goal that could lead to new treatments for such illnesses as Parkinson's disease and diabetes. In the Wednesday, May 15, 2013 edition of the journal Cell, scientists at the Oregon Health & Science University report harvesting stem cells from six embryos. Shoukhrat Mitalipov, who led the research, said the success came not from a single technical innovation, but from revising a series of steps in the process. (AP Photo/Oregon Health & Science University)
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Posted: 5/13/2013 6:41:49 PM EST
In this March 20, 2013 photo, Susan Templer passes out test forms to her science class in Richardson, Texas. Templer was diagnosed with pancreatic cancer in 2011, but has continued teacher through her illness to reach her 25 year service mark. (AP Photo/John L. Mone)
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Posted: 5/13/2013 5:57:24 PM EST
FILE - In this Feb. 2, 2011 file photo, Sen. Orrin Hatch, R-Utah speaks on Capitol Hill in Washington. High-tech companies looking for an immigration bill to solve their shortages of workers skilled in mathematics and science press for more concessions this week through Hatch. Democrats desperately need his support to give the legislation a chance. Some liberal Democrats, however, say the bill already gives too much to Silicon Valley. (AP Photo/Jacquelyn Martin)
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Posted: 5/12/2013 2:35:57 PM EST
Riley Duren, the chief systems engineer for the Earth Science and Technology Directorate at NASA’s Jet Propulsion Laboratory(JPL), shows the global map of carbon dioxide at Mount Wilson, Calif., Friday, April 12, 2013. A mile above this city, sensors gaze down on the basin from atop Mount Wilson the way a satellite fixates on Earth, collecting pieces of information about Los Angeles' carbon footprint. (AP Photo/Jae C. Hong)
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Posted: 5/12/2013 2:35:57 PM EST
Riley Duren, the chief systems engineer for the Earth Science and Technology Directorate at NASA’s Jet Propulsion Laboratory(JPL) demonstrates on the laser radar designed to measure carbon dioxide in the air at Caltech's Linde + Robinson Laboratory in Pasadena, Calif., Friday, April 12, 2013. A mile above this city, sensors gaze down on the basin from atop Mount Wilson the way a satellite fixates on Earth, collecting pieces of information about Los Angeles' carbon footprint. (AP Photo/Jae C. Hong)
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Posted: 5/11/2013 7:59:37 PM EST
Georgia's Education and Science Minister Giorgi Margvelashvili (R) listens to Prime Minister Bidzina Ivanishvili during a news conference in Tbilisi, May 11, 2013. Margvelashvili was named as a presidential candidate from ruling Georgian Dream coalition for the upcoming elections in October. REUTERS/David Mdzinarishvili
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Posted: 5/11/2013 7:59:37 PM EST
Georgia's Education and Science Minister Giorgi Margvelashvili (R) smiles as Prime Minister Bidzina Ivanishvili speaks during a news conference in Tbilisi, May 11, 2013. Margvelashvili was named as a presidential candidate from ruling Georgian Dream coalition for the upcoming elections in October. REUTERS/David Mdzinarishvili
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Posted: 5/9/2013 12:45:40 PM EST
In this May 6, 2013 photo, Michael Gore, center, who is paralyzed from a spinal injury, walks with the use of the Indego wearable robot during a meeting of the American Spinal Injury Association at a downtown hotel in Chicago. Eleven years ago, Gore was paralyzed from the waist down in a workplace accident, but with the aid of the 27-pound gadget that snaps together from pieces that fit into a backpack he stands and walks with the assistance of science and engineering. The device is among several competing products that hold promise for people with spinal injuries, like Gore, and for people with multiple sclerosis and cerebral palsy or for those recovering from strokes. (AP Photo/M. Spencer Green)
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Posted: 5/9/2013 3:13:47 AM EST
In this May 6, 2013 photo, Michael Gore, center, who is paralyzed from a spinal injury, walks with the use of the Indego wearable robot during a meeting of the American Spinal Injury Association at a downtown hotel in Chicago. Eleven years ago, Gore was paralyzed from the waist down in a workplace accident, but with the aid of the 27-pound gadget that snaps together from pieces that fit into a backpack he stands and walks with the assistance of science and engineering. The device is among several competing products that hold promise for people with spinal injuries, like Gore, and for people with multiple sclerosis and cerebral palsy or for those recovering from strokes. (AP Photo/M. Spencer Green)
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Posted: 5/9/2013 3:13:47 AM EST
In this May 6, 2013 photo, Jennifer French, center, questions, Michael Gore, who is paralyzed from a spinal injury walking with the use of the Indego wearable robot under the supervision of physical therapist Clare Hartigan, second from left, during a meeting of the American Spinal Injury Association at a downtown hotel in Chicago. Eleven years ago, Gore was paralyzed from the waist down in a workplace accident, but with the aid of the 27-pound gadget that snaps together from pieces that fit into a backpack he stands and walks with the assistance of science and engineering. The device is among several competing products that hold promise for people with spinal injuries, like Gore, and for people with multiple sclerosis and cerebral palsy or for those recovering from strokes. (AP Photo/M. Spencer Green)
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Posted: 5/9/2013 3:13:47 AM EST
In this May 6, 2013 photo, Michael Gore, center, who is paralyzed from a spinal injury, walks with the use of the Indego wearable robot under the supervision of physical therapist Clare Hartigan during a meeting of the American Spinal Injury Association at a downtown hotel in Chicago. Eleven years ago, Gore was paralyzed from the waist down in a workplace accident, but with the aid of the 27-pound gadget that snaps together from pieces that fit into a backpack he stands and walks with the assistance of science and engineering. The device is among several competing products that hold promise for people with spinal injuries, like Gore, and for people with multiple sclerosis and cerebral palsy or for those recovering from strokes. (AP Photo/M. Spencer Green)
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Posted: 5/9/2013 3:13:47 AM EST
In this May 6, 2013 photo, Michael Gore, center, who is paralyzed from a spinal injury, walks with the use of the Indego wearable robot under the supervision of physical therapist Clare Hartigan during a meeting of the American Spinal Injury Association at a downtown hotel in Chicago. Eleven years ago, Gore was paralyzed from the waist down in a workplace accident, but with the aid of the 27-pound gadget that snaps together from pieces that fit into a backpack he stands and walks with the assistance of science and engineering. The device is among several competing products that hold promise for people with spinal injuries, like Gore, and for people with multiple sclerosis and cerebral palsy or for those recovering from strokes. (AP Photo/M. Spencer Green)
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Posted: 5/8/2013 11:30:24 AM EST
FILE - This is a Saturday, June 16, 2012 file photo of Physicist and best-selling author Stephen Hawking appears in Seattle. Hawking was taking part in the Seattle Science Festival Luminaries Series. Physicist Stephen Hawking has dropped plans to attend a major conference in Israel in June, prompting criticism Wednesday May 8, 2013 from Israeli officials who believe he has joined a boycott organized to protest Israel's treatment of the Palestinians (AP Photo/Ted S. Warren)
