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Latest OGLE-2003-BLG-235/MOA-2003-BLG-53 Stories

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2006-08-08 12:50:00

NASA's Hubble Space Telescope has for the first time identified the parent star of a distant planet discovered through gravitational microlensing. Microlensing occurs when a foreground star amplifies the light of a background star that momentarily aligns with it. The particular character of the light magnification can reveal clues to the nature of the foreground star and any associated planets. However, without conclusively identifying and characterizing the foreground star, a unique...

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2005-05-31 07:15:00

EDP -- Fifty years after his death, Albert Einstein's work still provides new tools for understanding our universe. An international team of astronomers has now used a phenomenon first predicted by Einstein in 1936, called gravitational lensing, to determine the shape of stars. This phenomenon, due to the effect of gravity on light rays, led to the development of gravitational optics techniques, among them gravitational microlensing. It is the first time that this well-known technique has...