Where can I find info about astrophysics on the internet that is not a biased source?

What happens to light waves from a star as the star moves away from earth?

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?