Why Are There Black Holes In The Center Of Galaxies?
What affect does Saturn's moons have on the shape of its rings?
How do Solar Winds create X-Rays
What role do Black Holes play in the creation or recycling of the Universe?
What are space warps or time twists?
What would happen, if the earth spin was twice the velocity or half the velocity?
How do scientist measure the energy the sun is producing per hour?
Is a singularity within a black hole, a mathematical improbability?
How do scientist measure the energy the sun is producing per hour?
What happens if the earth magnetic field reverses, will all the electronics continue to work?
What are the Van Allen Belts? How much radiation is being generated by the belts?
What are the affects of solar flares on the earth's weather temperatures?
How much of an affect does the Sun have on earth's tides?
How do scientist prove the craters on the moon formed from asteroids and not volcanoes?
How do scientist know whether fusion reactions are occurring in a black hole?
What is a black hole, ring singularity?
updated 2010-07-18 02:32:44
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Gravitional Microlensing
Despite yielding the smallest planets with the largest distances from their star so far, the amount of planets found by Gravitational Lensing pale in comparison to other methods, such as using the Doppler effect of a star to detect a planet. To date, 461 planets have been found using the Doppler effect method, while only 11 planets have been found using Microlensing. http://arxiv.org/abs/1002.0332 http://ogle.astrouw.edu.pl/ Furthermore, because detection through Gravitational Lensing is very indirect, many parameters of the planet cannot be determined, such as the time it takes for the planet to revolve around its star or the shape of its orbit. http://www.daviddarling.info/encyclopedia/M/microlensing.html Gravitational Lensing also is only feasible when both stars in the sky are aligned with the planet between them, making the planet detectable only for a short period of time, making it hard to confirm these discoveries. http://arxiv.org/abs/0905.3426v1
