The newly discovered planet balances precariously in orbit within the star system, puzzling scientists.
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Former Academy Head Predicts Few Obstacles for Female Successor
Prior to retiring last week as president of the U.S. National Academy of Sciences, Ralph Cicerone said the academy is ready for its new leader to be a woman and a younger person.
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Juno Spacecraft Nails Its Orbit Around Jupiter
The mission will spend 20 months collecting data on the planet's core, its magnetic field, and the composition of its atmosphere.
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Telica Volcano Rested Quietly Right Before Spewing Ash
The length of quiet periods predicts the severity of eruption events, according to a new model that might soon help forecast explosions worldwide.
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Antarctica's Ozone Hole Is Healing, Scientists Say
The ozone hole over Antarctica has shrunk by 16% since its peak in 2000, and some suspect it may disappear entirely by midcentury.
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Academy Head Says Political Rancor Harms Science, Society
The retiring National Academy of Sciences president says allegations that climate change is a fraud are deeply upsetting. But he hopes rabid partisanship can be eased.
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Model Predicts Heights of Rogue Waves
Rogue waves form without warning and can tower more than 25 meters high. A new mathematical approach shows promise at simulating how high these waves can be.
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Eyjafjallajökull Gave Lava and Ice Researchers an Eyeful
New insights from the 2010 eruption may help volcanologists determine how glaciers shaped ancient lava flows.
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Report Touts White House Science Impact
The Obama administration also announced a milestone for White House science adviser John Holdren, who on 18 June set a new record for longevity in the science advisory role.