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Channel: atmospheres Archives - AAS Nova
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An Explanation for Saturn’s Hexagon

For over three decades, we’ve been gathering observations of the mysterious hexagonal cloud pattern encircling Saturn’s north pole. Now, researchers believe they have a model that can better explain...

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Rotating Stars Can Help Planets Become Habitable

What characteristics must a terrestrial planet exhibit to have the potential to host life? Orbiting within the habitable zone of its host star is certainly a good start, but there’s another important...

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Temperature Swings in a Hot Jupiter’s Atmosphere

Weather variations in the atmosphere of a planet on a highly eccentric orbit are naturally expected to be extreme. Now, a study has directly measured the wild changes in the atmosphere of a highly...

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Clues From Pluto’s Ions

Nearly a year ago, in July 2015, the New Horizons spacecraft passed by the Pluto system. The wealth of data amassed from that flyby is still being analyzed — including data from the Solar Wind Around...

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Water Clouds in the Atmosphere of a Jupiter-Like Brown Dwarf

Lying a mere 7.2 light-years away, WISE 0855 is the nearest known planetary-mass object. This brown dwarf, a failed star just slightly more massive than Jupiter, is also the coldest known compact body...

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K2’s First Five-Planet System

What’s the latest from the Kepler K2 mission? K2 has found its first planetary system containing more than three planets — an exciting five-planet system located ~380 light-years from Earth!...

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An Ocean of Magma

Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the new partnership between the AAS and astrobites, we will...

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Could Flaring Stars Change Our Views of Their Planets?

As the exoplanet count continues to increase, we are making progressively more measurements of exoplanets’ outer atmospheres through spectroscopy. A new study, however, reveals that these measurements...

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Preparing for the Temperature Drop at Night

Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we repost...

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A Volcanic Hydrogen Habitable Zone

Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we repost...

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Featured Image: Experimental Simulation of Melting Meteoroids

Ever wonder what experimental astronomy looks like? Some days, it looks like this piece of rock in a wind tunnel (click for a better look!). In this photo, a piece of agrillite (a terrestrial rock) is...

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Habitability of the TRAPPIST-1 System

The recent discovery of seven Earth-sized, terrestrial planets around an M dwarf star was met with excitement and optimism. But how habitable are these planets actually likely to be? A recent study of...

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A Partly Cloudy Exoplanet

Direct imaging of exoplanets was once only possible for the brightest of planets orbiting the dimmest of stars — but improving technology is turning this into an increasingly powerful technique. In a...

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I See Skies of Blue and Clouds of White

Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we repost...

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Throwing Icebergs at White Dwarfs

Where do the metals come from that pollute the atmospheres of many white dwarfs? Close-in asteroids may not be the only culprits! A new study shows that distant planet-size and icy objects could share...

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Grounded Eyes on Distant Watery Skies

What can we learn about exoplanets from high-resolution, ground-based observations? A new view of the nearby upsilon Andromedae system has revealed a great deal about the system’s closest-in exoplanet...

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Detecting Exoplanet Life in Our Proximity

Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we repost...

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A History of Water Loss in the TRAPPIST-1 Exoplanets

Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we repost...

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Modeling Limitless Skies

Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we...

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Selections from 2017: Hostile Environment Around TRAPPIST-1

Editor’s note: In these last two weeks of 2017, we’ll be looking at a few selections that we haven’t yet discussed on AAS Nova from among the most-downloaded papers published in AAS journals this year....

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