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  • Scottish scientists slow the speed of light Friday, 23 Jan 2015 | 3:23 PM ET
    Light passing through prism

    A team of researchers in Scotland found that changing the shape of light can slow it down, meaning the speed of light is not as constant as thought.

  • 'Doomsday Clock' moves 2 minutes closer to midnight Thursday, 22 Jan 2015 | 2:05 PM ET
    Richard Somerville, right, research professor at Scripps Institution of Oceanography, unveils an updated version of the Doomsday Clock during a press conference in Washington, Jan. 22, 2015.

    An association of top scientists has moved the hand of the symbolic Doomsday Clock, over the threats of nuclear weapons and warming climates.

  • California not ready for quakes—and they're coming Wednesday, 21 Jan 2015 | 3:35 PM ET
    A National Guard soldier stands on a street after an earthquake in Northridge, Calif., Jan. 18, 1994.

    The chief of California's state-run earthquake insurance agency says residents there have no financial protection if a big quake hits.

  • NASA finds lost British spacecraft on Mars Friday, 16 Jan 2015 | 3:13 PM ET
    Images of the Beagle 2 lander from NASA's Mars Reconnaissance Orbiter satellite

    Scientists lost contact with the Beagle 2 before it was supposed to land on Mars on Christmas Day 2003. NASA images have just shown it.

  • The White House said the studies, by the U.S. space agency NASA and the National Oceanic and Atmospheric Administration, showed a need for action to reduce rising world emissions of greenhouse gases. The scientists said the record temperatures were spread around the globe, including most of Europe stretching into northern Africa, the western United States, far...

  • Separate studies by the U.S. space agency NASA and the National Oceanic and Atmospheric Administration showed that the 10 warmest years on record have taken place since 1997.. The scientists said the record temperatures were spread around the globe, including most of Europe stretching into northern Africa, the western United States, far eastern Russia into...

  • Getting hot in here: 2014 hottest year on record Friday, 16 Jan 2015 | 12:06 PM ET
    A worker delivering bottled water during the hot weather last July in Shanghai.

    Of the large inhabited land areas, only the eastern half of the United States recorded below-average temperatures in 2014, NYT reports.

  • Separate studies by NASA the National Oceanic and Atmospheric Administration showed that with the exception of 1998, 10 of the warmest years on record have occurred since 2000.. Since 1880, when record-keeping began, Earth's average surface temperature has warmed by about 1.4 degrees Fahrenheit, a trend that is largely driven by the increase in carbon...

  • Fixing the US STEM problem: Bill Nye Friday, 16 Jan 2015 | 7:00 AM ET
    Bill Nye, “The Science Guy,” speaking at the Toshiba/NSTA ExploraVision Gala 2014

    Bill Nye, "The Science Guy" weighs in on how to fix the US's problem of not being able to fill millions of STEM jobs.

  • *KB Home forecasts drop in gross margins. Shares of homebuilders fell 1.5 percent after KB Home forecast a drop in gross margins for the first quarter. Homebuilder stocks had been up earlier in the session, but KB Home dropped 16.3 percent to $13.87, its biggest percentage fall since 1992..

  • 'Nanowire' clothing could cut your heating bills Monday, 12 Jan 2015 | 6:51 PM ET
    A woman braces from the cold during the morning commute in New York City November 25, 2013 as temperatures dropped into the lower 30's(F).

    Scientists coated fabric with a nearly invisible substance that can supercharge winter clothing and cut down on household heating.

  • 23andMe partners with big pharma   Monday, 12 Jan 2015 | 12:20 PM ET
    23andMe partners with big pharma

    Anne Wojcicki, co-founder and CEO of genetic-testing startup 23andMe, discusses the new deals with Pfizer and Genentech.

  • Celgene CEO: Creating a great future   Monday, 12 Jan 2015 | 11:45 AM ET
    Celgene CEO: Creating a great future

    CNBC's Meg Tirrell speaks to Robert Hugin, Celgene chairman & CEO, about the company's ambitious long-term guidance and broad-based drug pipeline.

  • 'Dirty' discovery in antibiotics   Thursday, 8 Jan 2015 | 1:31 PM ET
    'Dirty' discovery in antibiotics

    Superbugs are one of the biggest public health crises facing the world right now. CNBC's Meg Tirrell reports nature is sparking hope for scientists.

  • FDA paves way for cheaper cancer drug copies   Thursday, 8 Jan 2015 | 1:28 PM ET
    FDA paves way for cheaper cancer drug copies

    CNBC's Meg Tirrell reports an FDA advisory panel unanimously recommended approval of what would be the first generic biologic drug in the U.S.

  • Schizophrenia breakthrough?   Wednesday, 7 Jan 2015 | 2:47 PM ET
    Schizophrenia breakthrough?

    Shares of Alkermes are up nicely after positive data from its schizophrenia drug trial. Richard Pops, Alkermes CEO, provides insight to the enormous market for schizophrenia and depression.

  • Will biotech bull run continue?   Tuesday, 6 Jan 2015 | 10:43 AM ET
    Will biotech bull run continue?

    Discussing the outlook on the pharmaceutical sector, including leaders like Gilead and Celgene, with Michael Yee, RBC Capital Markets biotech analyst.

  • Recreational pot store owner seeks expansion   Monday, 5 Jan 2015 | 1:47 PM ET
    Recreational pot store owner seeks expansion

    NBC's Harry Smith discusses just who is making the most money in the pot industry, and Starbuds owner Brian Ruden, discusses the cash issue with banks. CNBC's special "Marijuana Country: The Cannabis Boom" airs Monday night at 9PM eastern time.

  • The pot underground   Monday, 5 Jan 2015 | 10:53 AM ET
    The pot underground

    NBC's Harry Smith looks at the thriving marijuana black market in Colorado even after legalization there. The special airs Monday night at 9PM eastern time.

  • 'Marijuana Country: The Cannabis Boom'   Monday, 5 Jan 2015 | 7:34 AM ET
    'Marijuana Country: The Cannabis Boom'

    NBC's Harry Smith provides a preview of CNBC's documentary on the benefits and pitfalls from medicinal marijuana. The special airs Monday night at 9PM eastern time.