This is my all time favorite blog: Bad Astronomy. Here is a snippet:
Phil Plait, the creator of Bad Astronomy, is an astronomer, lecturer, and author. After ten years working on Hubble Space Telescope and six more working on astronomy education, he struck out on his own as a writer. He has written two books, dozens of magazine articles, and 12 bazillion blog articles. He is a skeptic, and fights misuses of science as well as praising the wonder of real science.I check this blog every day. Phil posts often. If there is a cool astronomy observation coming up or some dramatic space related event, go here to find out the whole story. Plus, Phil does an excellent job in pointing out pseudoscience and bullshit, all in a family friendly manner.