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ALMA Discovers a Formation Site of a Giant Planetary System
Topic: New Planets
01/22/14
Summary: Astronomers have found evidence of a giant planetary system forming around a young star. The study could provide new clues about the origin of such systems.

First Planet Found Around Solar Twin in Star Cluster
Topic: New Planets
01/15/14
Summary: Astronomers have discovered three planets orbiting stars in the cluster Messier 67. One of these new exoplanets is orbiting a star that is a rare solar twin — a star that is almost identical to the Sun in all respects.

Small Exoplanets Covered in Gas
Topic: New Planets
01/14/14
Summary: The Kepler mission has measured masses for roughly 60 exoplanets that are larger than Earth, but smaller than Neptune. Data shows that many of these planets are likely covered in gas.

A Celestial Object That Defies Description
Topic: New Planets
01/12/14
Summary: Astrophysicists have discovered a strange celestial object that could challenge theories of how stars and planets form. They are not sure if the object itself is a planet... or a star.

Newfound Planet is Earth-mass But Gassy
Topic: New Planets
01/11/14
Summary: Astronomers have found the first Earth-mass planet transiting its star. Both the mass and size of the planet have been measured, and the numbers indicate that it has a thick, gaseous atmosphere.

Kepler Discovers Five New Rocky Planets
Topic: New Planets
01/09/14
Summary: Ground-based observations that followed up on data from Kepler confirm the existence of five new rocky planets. The study also provides new insight into many other planets spotted by Kepler that are between the sizes of Earth and Neptune.

Cloudy Weather on a Distant World
Topic: New Planets
01/04/14
Summary: Astronomers have used the Hubble Space Telescope to study cloudy weather on an extrasolar planet. The team are the first to definitively characterized the atmosphere of a planet orbiting a distant star.

Astrobiology Top 10: Exoplanets: 1,000 and Counting
Topic: New Planets
12/28/13
Summary: As 2013 draws to a close, Astrobiology Magazine highlights the year's top stories. At number 6 is the expansion of the Extrasolar Planets Catalog to now over 1,000 planets. The milestone was reached October 22, and their current count of planets discovered beyond our solar system now sits at 1,010. (Originally published on 10/25/13)

First Detection of a Predicted Unseen Exoplanet
Topic: New Planets
12/20/13
Summary: Astronomers previously predicted the presence of the planet Kepler-88 c based on its gravitational influence on other planets in the system, even though they couldn't see it. Now, new observations confirm that the planet does exist.

Astronomers Discover a Planet That Shouldn't Be There
Topic: New Planets
12/08/13
Summary: Astronomers have discovered a giant planet whose existence can't be explained by current models of planet or star formation.

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