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Earth 424
Topic: New Planets
Astronomers have spotted a star system 424 light-years away where they think an Earth-like planet is likely forming. They've found a belt of warm dust that has enough mass to form a planet the size of Mars or larger.

All Planets Possible
Topic: New Planets
Using new models, scientists have expanded our knowledge about the different types of Earth-sized planets might be found around distant stars. The team has created models for 14 different types of solid planets that might exist in our galaxy.

Previewing Earth's Destiny
Topic: New Planets
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
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
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
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
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
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
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
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.

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