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Previewing Earth's Destiny
Topic: New Planets
09/16/07
Summary: For the first time, astronomers have discovered a planet orbiting a star near the end of its life. The finding may yield clues about the distant future of Earth when our own Sun begins to die.

Large but Light
Topic: New Planets
08/10/07
Summary: Astronomers have found the largest extrasolar planet to date. The planet, dubbed TrES-4, is about 70 percent bigger than Jupiter but has a very low density. In fact, TrES-4 is much larger relative to its mass than astronomers had thought possible, and studying the planet will provide new insight into how planets form and behave.

Orbiting a Red Giant
Topic: New Planets
08/07/07
Summary: A new planet orbiting a giant red dwarf star has been discovered, and is teaching astronomers about the future of our own Solar System and the potential for life on planets orbiting distant stars.

Quadruple Sunsets
Topic: New Planets
07/29/07
Summary: Astronomers have discovered that planets might form in systems with as many as four stars. The findings extend our understanding of where to search for new planets beyond our Solar System.

Threading the Blue Needle
Topic: New Planets
07/21/07
Summary: Astronomers have found a uniquely shaped disk of debris around a distant star. The asymmetry of the disk may be a sign of extrasolar planets, whose orbits could affect its shape.

Steamy When Wet
Topic: New Planets
07/14/07
Summary: New observations of the extrasolar planet HD 189733b show that the scorching-hot planet contains water vapor in its atmosphere. The finding is helping astronomers fine-tune techniques that may one day lead to the discovery of Earth-like worlds.

Jupiters Rare in Outer Solar Systems
Topic: New Planets
07/13/07
Summary: A recent survey for planets around nearby stars shows that extrasolar planets more massive than Jupiter are rare in other solar systems at distances further than 5 AU from their host stars. This may have important implications in the continuing search for planets around distant stars.

Polluted by Planets
Topic: New Planets
07/11/07
Summary: Scientists have found that the iron-enriched surfaces of dwarf stars that harbor planets may be caused by planetary debris 'polluting' the stars. The findings could yield new information about distant planetary systems.

Adding Up Atmospheres
Topic: New Planets
06/24/07
Summary: Scientists have developed new computer models that can help us understand the atmospheric composition of distant worlds, such as the Earth-like planet Gliese 581.

A Rush of New Planets
Topic: New Planets
06/02/07
Summary: The discovery of 28 new planets and 7 brown dwarfs outside the Solar System was recently announced by the world's largest planet-hunting team. New and refined techniques are responsible for the large number of planets detected, and may soon help the team discover smaller, Earth-like planets around distant stars.

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