origin of life
esiegel | November 2, 2012"The important point is that since the origin of life belongs in the category of at least once phenomena, time is on its side. However improbable we regard this event, or any of the steps which it involves, given enough time it will almost certainly happen at-least-once. And for life as we know it, with its capacity for growth and reproduction, once may be enough." -George Wald
That there's an amazing story of life's evolution on Earth is a scientific certainty. The evidence is encoded in the nucleic acid sequences of every living organism ever discovered, and the history of life on this…
esiegel | June 14, 2012"Everyone is a moon, and has a dark side which he never shows to anybody." -Mark Twain
Back before the telescope was invented, Saturn was known as the Old Man of the Skies. The slowest-moving of the naked-eye planets, it's the only one that would reliably be in nearly the same location, year after year. You can find it all summer, after sunset, by following the "arc" of the handle of the big dipper all the way until you run into the brightest northern-hemisphere star, Arcturus, and then speeding on to the very bright Spica. Saturn is right next door.
Image credit: EarthSky.org.
But…
cagapakis | May 17, 2010Are aliens little green men of unpredictable motives? Horrible insect-like face-hugging, chest-exploding monsters? Are they super-smart, super-slimy, super-fishy, body-cavity-probing, disc-flying creatures, searching for planets to colonize and people to destroy as Stephen Hawking warned, or are they something much more mundane? Could there be alien life already on earth, too microscopic, too different to notice? Could life on earth have been seeded from an alien land, with secret messages encoded in our DNA? We've been scanning the sky for extraterrestrial radio signals for years, should we…
esiegel | May 7, 2008The American Association of Physics Teachers just published a study of 1,000 likely U.S. voters about science, religion, evolution, and creationism. The results are frightening. Here are some of the "highlights" of their study:
38% of Americans are in favor of the teaching of religion in public school science classrooms.
65% of Americans do not think that it is an important science goal to understand the origin and diversity of biological life on Earth.
47% of Americans believe that the earliest humans lived at the same time as the dinosaurs.
21% of Americans do not believe that the…