... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... This shows the Sun, Moon and Earth (not to scale) together with the . ... They have tested the technique on the Earthshine, the light reflected from the Earth by the Moon, and showed that it can reveal the presence of life in our planet. ... This technique uses the fact that the light reflected from the planet is polarised, whereas that emitted by the star is not. ... Polarised light can tell us about the reflecting surface...

... Bo Einarsson, born 1939, has more than 30 years of experience as a Fortran programmer and as a teacher in Fortran. He has been a principal scientific officer and director of research at the Swedish National Defence Research Institute in Tumba and Ume . ... He joined Link ping University as director of the university computing center and is now an associate professor in the mathematics department with teaching in Numerical Methods and Fortran Programming . ... University of Link ping . ...

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