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  • Two for one: Hubble picks out pair of Earth-sized planets' atmospheres

    Two for one: Hubble picks out pair of Earth-sized planets' atmospheres

    Using NASA’s Hubble Space Telescope, an international team of scientists has tracked two planets crossing in front of the same star at the same time -- discovering that these worlds are both rocky and have comparatively thin atmospheres. The findings, described in the journal Nature, lend growing...

  • Four rocky planets around one star? Kepler's new finds intrigue scientists

    Four rocky planets around one star? Kepler's new finds intrigue scientists

    NASA’s Kepler spacecraft has pulled in the largest crop of confirmed exoplanets ever found by the K2 mission – a triple-digit trove that includes a star system with four small planets that may be rocky, like Earth. The 104 worlds, described in the Astrophysical Journal Supplement Series, bolster...

  • The human eye can detect a single photon, study finds

    The human eye can detect a single photon, study finds

    Your eyes may be more sensitive than you ever thought possible. In a study published Tuesday in Nature Communications, researchers report that our warm, wet, multicellular eyes have evolved such a high level of sensitivity that they can, on occasion, detect a single photon aimed at the retina. ...

  • A mysterious case of Zika raises new fears of person-to-person transmission

    A mysterious case of Zika raises new fears of person-to-person transmission

    Experts from the Centers for Disease Control and Infection are investigating a worrisome case of Zika virus transmission after the caregiver of a Zika-infected patient who died was found to be infected as well. In late June, an elderly Utah resident who had visited a country where the Zika virus...

  • Some earthquakes on San Andreas fault are triggered by gravitational tug of sun and moon

    Some earthquakes on San Andreas fault are triggered by gravitational tug of sun and moon

    The gravitational tug between the sun and moon is not just a dance of high and low tides: It can also trigger a special kind of earthquake on the San Andreas fault. This phenomenon has fascinated scientists for years. Like sea levels, the surface of the Earth also goes up and down with the tides,...

  • To avoid conflict, L.A. mountain lions choose separate hunting grounds

    To avoid conflict, L.A. mountain lions choose separate hunting grounds

    In the hills and wooded areas of the Los Angeles area, mountain lions remain a constant, yet mostly unseen, presence. But the predators may come closer to human areas to hunt than we previously realized, according to a recent study by UCLA and the National Park Service. The study, published in...

Health & Medicine

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Space

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  • Juno arrives at Jupiter: 'It’s the end of the voyage, but it’s the beginning of the science'

    Juno arrives at Jupiter: 'It’s the end of the voyage, but it’s the beginning of the science'

    After completing its nearly five-year journey through the solar system and positioning itself into orbit around Jupiter, NASA’s Juno spacecraft is set to boot up its scientific instruments Wednesday night and begin its close-up study of the giant and mysterious planet. Engineers had turned off...

  • Video: JPL's Steve Levin answers your questions about #JunoAtJupiter

    Video: JPL's Steve Levin answers your questions about #JunoAtJupiter

    It made it! NASA’s Juno spacecraft safely arrived at Jupiter on July 4 — an event marked by cheers, fist pumps and hugs in the mission control room at Jet Propulsion Laboratory in La Cañada Flintridge.  Juno had successfully executed its 35-minute burn sequence without getting whacked by a space...

  • 'Juno sang to us, and it was a song of perfection'

    'Juno sang to us, and it was a song of perfection'

    Updates: NASA's Juno spacecraft begins orbiting Jupiter July 5, 2016, 1:51 a.m. After traveling for nearly five years and 1.8-billion miles, NASA's Juno spacecraft made it to Jupiter on July 4 and began orbiting the planet at 8:53 p.m. Pacific time -- just one second off its scheduled arrival....

Environment

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Nutrition & Obesity

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  • In U.S., 38% of adults and 17% of kids are now obese, CDC study says

    In U.S., 38% of adults and 17% of kids are now obese, CDC study says

    How do government agencies, private foundations, industry groups and professional societies squander hundreds of millions of dollars? By trying to fight America’s obesity epidemic. Two new studies show that the best efforts of all these players – as well as schools, churches and individual healthcare...

  • To do better in school, kids should exercise their bodies as well as their brains, experts say

    To do better in school, kids should exercise their bodies as well as their brains, experts say

    Attention parents: If you’d like to see your kids do better in school, have them close their books, set down their pencils and go outside to play. That’s the latest advice from an international group of experts who studied the value of exercise in school-age kids. “Physical activity before, during...

  • Americans' diets improve, but ethnic and income gaps widen

    Americans' diets improve, but ethnic and income gaps widen

    More American adults are eating better, but a new analysis of American diets between 2000 and 2012 shows that the trend of improved nutrition is largely limited to middle- and upper-income white Americans. The result: a widening nutrition gap separating white Americans from African Americans and...

Human Behavior

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