Quote Originally Posted by LtDra View Post
START ARE DIFFERENT COLORS?

Temperture determines the color of stars. The hottest are eaither white or blue-white. Coller stars are reddish.

THERE MAY BE LIFE IN OUTER SPACE?

Astronomers using a radio telescope detected water in the Markarian 1 galaxy, which is 200 million light-years away. A light-year, the distance light travels in one years, is approximately 5.878 trillion miles (9.46 trillion kilometers). Although Markarian 1 is one of the most distant galaxies ever discovered, scientists tell us that wherever there is water, there is a good possibility that life exists.
I just hear on radio that they found proof of possible water and organic matter in some distant galaxy.

BTY, when a star moves, the wavelength changes (like doppler effect) so the color that we see also changes.