Paradigm Shift

The entire universe changed in the ’90s. Astronomers started to nail down strong evidence of the existence of dark matter, and went a long way towards understanding some major puzzles about galactic motion and evolution. Results from Hubble gave evidence of something even stranger – cosmological expansion-acceleration and dark energy. So now the universe’s expansion is not slowing down due to the gravity of everything in it, but is actually proceeding at an accelerating rate. There’s so much of it in fact, that the normal matter and energy that we’re used to is only about 6% of everything that’s there. The entire universe is just not like we thought.

And just yesterday, I tripsed across this, which tells us that maybe getting a tan does something like the opposite of give you cancer – it protects you from many forms of the dreaded disease. Seems like more stuff is just not like we thought.

And today, this. Now it looks like we’ve been wrong about how we die, too:

[W]hy can’t doctors revive someone who has been dead for an hour? Because once the cells have been without oxygen for more than five minutes, they die when their oxygen supply is resumed.

Biologists are still grappling with the implications of this new view of cell death—not passive extinguishment, like a candle flickering out when you cover it with a glass, but an active biochemical event triggered by “reperfusion,” the resumption of oxygen supply.

With this realization came another: that standard emergency-room procedure has it exactly backward.

It seems the entire universe is about to change again.

Explore posts in the same categories: Science

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