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  • Feature

    Life under ice

    Even by Antarctic standards, the Lake Vostok research station is inhospitable. The outpost at the heart of the frozen continent holds the record for the lowest naturally occurring temperature ever observed on Earth. Scientists commonly describe the place as punishing, unforgiving, the most desolate place on the planet.

    That’s nothing. Nearly 4,000...

    08/23/2013 - 12:00 Earth
  • News

    Laser proposed to deflect space junk

    It won’t prevent Armageddon, but a simple ground-based laser system could nudge small pieces of space junk away from satellites to prevent collisions, a new study suggests.

    The proposed system uses photons generated by a medium-power laser and aimed into space through a 1.5-meter telescope. The photons exert pressure on space debris in low-Earth orbit, gently pushing the...

    03/22/2011 - 17:19 Atom & Cosmos
  • News

    Seafloor Chemistry: Life's building blocks made inorganically

    Hydrocarbons in the fluids spewing from a set of hydrothermal vents on the seafloor of the central Atlantic were produced by inorganic chemical reactions within the ocean crust, scientists suggest. The finding holds possibly profound implications for the origins of life.

    The Lost City hydrothermal field, which sits on the side of an undersea mountain about 2,500...

    01/30/2008 - 12:22 Earth
  • Food for Thought

    Troubling Meaty 'Estrogen'

    Women take note. Researchers find that a chemical that forms in overcooked meat, especially charred portions, is a potent mimic of estrogen, the primary female sex hormone. That's anything but appetizing, since studies have linked a higher lifetime cumulative exposure to estrogen in women with an elevated risk of breast cancer.

    Indeed, the new finding offers a "biologically...

    10/17/2007 - 01:38 Nutrition
  • News

    Antibiotics in infancy tied to asthma

    Children given multiple doses of antibiotics before their first birthdays have a heightened risk of asthma later, a study shows.

    Researchers analyzed the medical records of 13,116 children born in Manitoba in 1995. Roughly 6 percent of the group developed asthma by age 7.

    Kids getting more than four courses of antibiotics during the first year of life were 1.5 times as likely to...

    07/02/2007 - 15:06 Biomedicine