ADVERTISEMENT
  About the SA Blog Network

Posts Tagged "rare earth"

Life, Unbounded

Complex Life Owes Its Existence To Parasites?

mitochondria.001

Is complex life rare in the cosmos? The idea that it could be rests on the observation that the existence of life like us – with large, energy hungry, complicated cells – may be contingent on a number of very specific and unlikely factors in the history of the Earth. Added together they suggest that [...]

Keep reading »
Life, Unbounded

The Great Alien Debate (Part 1)

Sheep.001 crop

This post is one in a series covering, and expanding on, topics in the book The Copernicus Complex (Scientific American/FSG).           The conversation usually goes like this: Do you think we’re alone in the universe? Answer A) : No, absolutely not. It’s a huge universe, we’re not at the center or [...]

Keep reading »
Observations

Recycling Reality: Humans Set to Trash Most Elements on the Periodic Table

metal-cycle

Almost all lead is recycled, among the only elements on the periodic table to earn that distinction. With good reason, mind you: the soft metal is a potent neurotoxic known to impact children’s brain development, among other nasty health effects. Today, nearly all lead is used in batteries (though it was once put into gasoline, [...]

Keep reading »

More from Scientific American

Scientific American Holiday Sale

Black Friday/Cyber Monday Blow-Out Sale

Enter code:
HOLIDAY 2014
at checkout

Get 20% off now! >

X

Email this Article

X