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A Super Time for SuperEarths
Topic: Cosmic Evolution
A new model could indicate whether an exoplanet has a light but extended atmosphere, or a relatively thin and heavy atmosphere. This knowledge could help refine the targets in the search for planets like Earth capable of sustaining life.

Pulsating Star Sheds Light on Exoplanet
Topic: Cosmic Evolution
A new way of measuring the internal properties of stars could also give astrobiologists more accurate assessments of the planets that orbit them.

Solar Twin Provides Glimpse Into Our Future
Topic: Cosmic Evolution
Astronomers have studied the oldest 'solar twin' to date. The star is more like our sun than any known star, except that it is nearly four billion years older.

Revisiting Water's Fate Around Low-Mass Stars
Topic: Cosmic Evolution
Previous studies suggested that planets in the habitable zone of red dwarfs should be dry, but more recent work refreshes the possibility of water on these distant worlds.

A Fluffy Disk Around a Baby Star
Topic: Cosmic Evolution
Astronomers have observed a disk of debris around the star RY Tau. The disk has a 'fluffy layer' that appears to be remnant material from an earlier phse of disk development.

The Strange Attraction of Hot Jupiters
Topic: Cosmic Evolution
The majority of the more than 850 exoplanets discovered thus far are 'hot Jupiters,' gas giants that orbit close to their host star. These planets are far from Earth-like, but they still have a great deal to teach us about the variety of worlds that exist in the Universe.

Free-floating Planets May Be Born Free
Topic: Cosmic Evolution
New observations have shown that not all free-floating planets were thrown out of planetary systems. Cold clouds in space have all the right characteristics to form planets, even though there is no parent star.

Stars Don't Obliterate Their Planets Very Often
Topic: Cosmic Evolution
A new study using data from NASA's Kepler Space Telescope shows that hot Jupiters are not regularly consumed by their host stars.

Looking to the Past to Predict Our Climate Future
Topic: Cosmic Evolution
Scientists are studying the fossil record in order to understand how climate change affected the ways in which ancient species interacted with one another. The study could also provide clues about how climate change will impact the future of Earth's biosphere.

Unexpectedly well-organized planetary systems
Topic: Cosmic Evolution
A new study indicates that planetary systems orbiting distant stars might actually be 'more organized' than our own planetary system.

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