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A new discovery answers an old question

(PhysOrg.com) -- The transition-metal monoxide FeO is an archetypal example of a Mott insulator—a material that should conduct electricity under conventional band theories but becomes an insulator when measured, especially at low temperatures—and a major iron-bearing component of the Earth’s interior. Understanding the high-pressure behavior of this material is important for both solid-state physics and Earth science.

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Largest Solar Storm Since 2005 to Hit Earth Tuesday

Sunday's solar flare (in upper right quadrant), as witnessed by NASA's Solar Dynamics Observatory. Credit: NASA Last night the sun unleashed a flash of radiation called a solar flare, along with a generous belch of ionized matter that is now racing toward Earth at thousands of kilometers a second. The solar storm front from the ionized blast, called a coronal mass ejection (CME), should arrive tomorrow morning , according to the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center (SWPC).

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Part of Earth’s mantle shown to be conductive under high pressure and temperatures

(PhysOrg.com) -- Scientists studying the rotation of the Earth have long known that our planet doesn't have a perfect spin. Most believe this is due to the different types of materials that make up the core, mantle and crust, which all have different rates of spin causing inherent friction

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Evolution: The Rise of Complexity

Let’s rewind time back about 3.5 billion years. Our beloved planet looks nothing like the lush home we know today – it is a turbulent place, still undergoing the process of formation. Land is a fluid concept, consisting of molten lava flows being created and destroyed by massive volcanoes.

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New Molecule Could Help Cool Planet

By Nina Chestney LONDON (Reuters) - A new molecule has been detected in Earth's atmosphere which could help produce a cooling effect, scientists said, but it remains to be seen whether it can play a major role in tackling global warming . The molecule can convert pollutants, such as nitrogen dioxide and sulphur dioxide, into compounds which can lead to cloud formation, helping to shield the earth from the sun, the researchers said. Over the past century, Earth's average temperature has risen by 0.8 degrees Celsius.

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Three Tiny Exoplanets Suggest Solar System Not So Special

Adding to its already long roster of firsts , NASA's Kepler spacecraft has found the three smallest extrasolar planets ever detected -- all of them smaller than Earth, and the most diminutive no larger than Mars. The newly discovered trio forms a miniature planetary system orbiting a cool, dim red dwarf star called KOI-961. [More]

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