Extrasolar Planets

Astronomy Cast Ep. 337: Photometry

by Fraser Cain March 10, 2014

Want to stay on top of all the space news? Follow @universetoday on Twitter There’s a lot you can learn by just staring at an object, watching how it changes in brightness. This is the technique of photometry, and it has helped astronomers discover variable stars, extrasolar planets, minor planets, supernovae, and much more. Remove […]

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How Will Aliens Find Us?

by Fraser Cain March 10, 2014

Trying to keep a low profile, to prevent the aliens from invading? Bad news. Life has actually been broadcasting our existence to the Universe for hundreds of millions of years. Remove this ad Fraser Cain on Google+

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What are Hot Jupiters?

by Fraser Cain February 12, 2014

When astronomers first discovered other planets, they were completely unlike anything we’ve ever found in the Solar System. These first planets were known as “hot jupiters”, because they’re giant planets – even more massive than Jupiter – but they orbit closer to their star than Mercury. Dr. Heather Knutson, a professor at Caltech explains these […]

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New Technique Puts Exoplanets on the Scale

by Shannon Hall February 11, 2014

Astronomers constantly probe the skies for the unexpected. They search for unforeseen bumps in their data — signaling an unknown planet orbiting a star, a new class of astronomical objects or even a new set of physical laws that will rewrite the old ones. They are willing to embrace new ideas that may replace the […]

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Search for Planetary Nurseries in the Latest Citizen Science Project

by Shannon Hall January 31, 2014

Growing up, my sister played video games and I read books. Now that she has a one-year-old daughter we constantly argue over how her little girl should spend her time. Should she read books in order to increase her vocabulary and stretch her imagination? Or should she play video games in order to strengthen her […]

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