transit method

ESA astronomers announced this week that they've discovered two more exoplanets, or planets outside our solar system, using the space-based COROT observatory. The two new finds are Jupiter-sized gas giants that orbit close to their parent stars.

But the astronomers also reported that COROT has picked up another object that they can't quite explain. This space oddity, COROT-exo-3b, looks to lie somewhere between a brown dwarf and a planet. It may even be a star, though if that's the case, scientists say it would be among the smallest ever detected.

Scientists have shown off a new laser that boasts an incomparable mix of speed, short pulses and power. That's newsworthy in and of itself, but this laser, developed by researchers at the University of Konstanz in Germany and, here in the U.S., at the National Institute of Standards and Technology, could also lead to a 100-fold increase in the sensitivity of observatories searching for extrasolar planets. The laser itself is the size of a dime, and pops out 10 billion pulses per second with an average power of 650 milliwatts.