Cracked and Panspermia
I brought up the topic of this Cracked article and in particular the entry for Crick, about panspermia. What I object to is the idea that panspermia itself is a crazy concept that belongs in the realm of science fiction, which I thought the author was effectively arguing. Especially in the context of most modern physics (relatively and quantum physics) seemingly flying in the face of common sense and nevertheless being true. The universe doesn't care about our human prejudices. I don't know the details of Crick's beliefs here; as presented in this article that sounds like the case, though there's some obvious bias. Regardless, Cracked here is more concerned about making the whole subject look crazy for comedic effect than an actual understanding.w
Here's the Neil deGrasse Tyson quote I wanted to share about panspermia:
From discoveries of Martian meteorites on Earth, we can conclue that about 1,000 tons of rock from Mars rain down on Earth each year. Perhaps the same amount of debris reaches Earth from the Moon. Thus we did not have to go to the Moon to retrieve Moon rocks. A few dozen of them have come to us on Earth, although they are not of our choosing, and we had not yet learned this fact during the Apollo program.
If Mars ever harbored life - most likely billions of years ago when liquid water flowed freely on the Martian surface - then unsuspecting bacteria, stowed away in the nooks and crannies (especially in the crannies) of the rock ejected from Mars, could have traveled to Earth for free. We already know that some varieties of bacteria can survive long periods of hibernation, as well as high doses of the solar ionizing radiation to which they would be exposed en route to Earth. The existence of space-borne bacteria is neither a crazy idea nor pure science fiction. The concept even has an important-sounding name: panspermia.
(taken from page 196 of Origins)
One final thing I want to note is that a debate about panspermia being a worth a consideration for scientific study should not be mistaken as arguing that there is evidence to support it happening on Earth. As far as I'm aware, there is none, at least not yet.