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Jupiter's complex transient auroras

Combined observations from three spacecraft show that Jupiter's brightest auroral features recorded to date are powered by both the volcanic moon Io and interaction with the solar wind.

May 26th, 2017

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A new approach to forecasting solar flares?

Using 3D numerical models, an international team has discovered a proxy that could be used to forecast an eruptive event. The proxy is associated with magnetic helicity, which reflects the extent of twist and entanglement of the magnetic field.

May 22nd, 2017

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Hubble spots moon around third largest dwarf planet

The combined power of three space observatories, including NASA's Hubble Space Telescope, has helped astronomers uncover a moon orbiting the third largest dwarf planet, catalogued as 2007 OR10. The pair resides in the frigid outskirts of our solar system called the Kuiper Belt, a realm of icy debris left over from our solar system's formation 4.6 billion years ago.

May 20th, 2017

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Experts explain origins of topographic relief on Earth, Mars and Titan

The surfaces of Earth, Mars, and Titan, Saturn's largest moon, have all been scoured by rivers. Yet despite this similarity and the amazingly Earth-like landscapes of Titan complete with valleys, lakes, and mountains, researchers report new evidence that the origins of the topography there and on Mars are different from on Earth.

May 20th, 2017

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Ripples in the cosmic web

A team of astronomers has made the first measurements of small-scale ripples in primeval hydrogen gas using rare double quasars.

Apr 27th, 2017

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'Ageless' silicon throughout Milky Way may indicate a well-mixed galaxy

New surveys of the Milky Way found no aging trend for the element silicon, a fundamental building block of rocks throughout our solar system. This 'ageless' appearance may mean that the Milky Way is more efficient at mixing its contents than previously thought, thereby masking the telltale signs of chemical aging.

Apr 26th, 2017

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Cassini, Voyager missions suggest new picture of Sun's interaction with galaxy

New data from NASA's Cassini mission, combined with measurements from the two Voyager spacecraft and the Interstellar Boundary Explorer, or IBEX, suggests that our sun and planets are surrounded by a giant, rounded system of magnetic field from the sun - calling into question the alternate view of the solar magnetic fields trailing behind the sun in the shape of a long comet tail.

Apr 24th, 2017

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Can we see a singularity?

A team of scientists has found new ways to detect a bare or naked singularity, the most extreme object in the universe.

Apr 20th, 2017

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