Lots of People + Lots of Lights = Light Pollution

From Down Under comes a curious headline that “Light pollution is killing astronomy.” For many folks, the very notion that too much light can be a “pollutant” may be a bit puzzling. After all, unlike other chemical pollutants or ionizing radiation, light is non-toxic, doesn’t stink, isn’t a carcinogen or mutagen, and isn’t an eyesore. Light isn’t even matter; it’s a form of pure energy.

Latest Reality Check: Still Only One Habitable Planet – Better Caregiving Needed

Physicist Stephen Hawking recently said, “I think the human race has no future if it doesn’t go into space.” Moving off planet must to be part of the “long-term strategy,” Hawking believes, if Homo sapiens is to survive for another million years.

Avoiding Overpopulation by Escaping to the Stars? Don’t Bet your Life – or the Earth – on it

A widely reported study in the Proceedings of the National Academy of Sciences that there could be as many as 40 billion habitable Earth-like planets in the Milky Way galaxy caused quite a stir recently.

Discovering Exoplanets While Destroying the Home Planet

I recall a poster in a science classroom depicting a radiant blue, white and brown orb afloat in the darkness of space: our beloved and much abused home, Earth. The poster was emblazoned with the slogan: “Good Planets Are Hard to Find!” A recent astronomical discovery would seem to contradict this fetching claim.