Asked in Planetary ScienceBlack Holes
If earth and a star were diverging at a combined speed greater than that of light would that star not appear as a black hole?
May 23, 2008 12:26PM
No. We would be unable to detect it but you can detect black holes(by xrays and light emmitted from material they are sucking up). You would be unable to detect it because if the two were moving away at a combined speed greater than that of light then light from the star could never reach the earth.