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news-004073		Microlensing technique reveals small, rocky extrasolar planet | News | Notre Dame News | University of Notre Dame			.html	text/html	837	31	50	Because OGLE-BLG-390Lb is only the third planet detected using gravitational microlensing and because the method has already revealed a small, rocky body, the researchers believe that there is a strong probability that rocky planets may be even more common than gas-giant ones. While incredibly effective, existing technology using radial velocity can only find large, Jupiter-like planets or smaller planets that orbit too close to the their host stars to sustain life.	cache/news-004073.html	txt/news-004073.txt