stefan cressey

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Kepler Mission Confirms Existence of 41 New Planets (Weekend Feature)

"This marvelous avalanche of information about the mini-Neptune planets is telling us about their core-envelope structure, not unlike a peach with …

The magic of the Internet

Worlds Without End: Q&A with Exoplanet Hunter Sara Seager

<b>Discover: What recent exoplanetary finds have amazed you?</b><p><b>Sarah Seager:</b> The best thing that’s happened in the past year or so is the [large] number of …

Interstellar Traveler: NASA's Voyager 1 Probe On 40,000-Year Trek to Distant Star

Now that NASA's Voyager 1 probe has left the solar system, its next big spaceflight milestone comes with the flyby of another star — in 40,000 …

NASA Kepler Provides Insight About Enigmatic But Ubiquitous Planets

The Kepler team today reports on four years of ground-based follow-up observations targeting Kepler's exoplanet systems at the American Astronomical …