Sent to you by Sean McBride via Google Reader: First Earth-Sized
Exoplanet May Have Been Found via Slashdot by kdawson on 1/19/09 Adam
Korbitz writes "New Scientist is reporting the extrasolar planet
MOA-2007-BLG-192Lb — whose discovery was announced just last summer —
may actually be the first truly Earth-sized exoplanet to be identified.
A new analysis suggests the planet weighs less than half the original
estimate of 3.3 Earth masses; the new estimate pegs the planet's size
at 1.4 Earth masses. The planet orbits a small red dwarf star, some
3,000 light-years from here, at an orbital distance of 0.62
astronomical units, about the same distance as Venus from our sun. One
significance of the planet's discovery is that it points to the
probable ubiquity of smaller terrestrial planets in somewhat Earth-like
orbits around red dwarf stars, the oldest and most numerous stars in
the galaxy. Here is a video report from the discoverers."

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