ADVERTISEMENT
  About the SA Blog Network

Posts Tagged "interstellar"

Life, Unbounded

Krugman’s Theory of Interstellar Trade

Are we all the same? (Credit. C. Scharf, original LeCire/Wikipedia)

Everyone needs a little light relief sometimes, including the Nobel winning economist and writer/blogger extraordinaire Paul Krugman. A few months back he reminded the world of a short paper he’d written some years ago on the rather unexpected topic of interstellar finance. You can teleport a copy to your automated reading device by clicking here. [...]

Keep reading »
Life, Unbounded

Astrobiology Roundup

mosaic.001

                      Lots of new scientific results in the past couple of weeks feed directly into the central questions of astrobiology – from the search for life, to the environment of interplanetary and interstellar space, and the grand cosmological terrain we find ourselves in. No Methane [...]

Keep reading »
Life, Unbounded

Voyager Has Entered The Interstellar Medium

pia17462-640

                After many claims and statements over the past few years that Voyager 1, our most distant operating spacecraft, has ‘left the solar system’ (it hasn’t, as I explain here), it does now seem that as of August 2012 this extraordinary vehicle has entered the interstellar medium. This [...]

Keep reading »
Life, Unbounded

The Interstellar Internet

An interstellar web? (Original image by B. Torrissen)

A speculative but intriguing discussion that sometimes crops up when talking to people engaged in exoplanetary science goes like this; let’s suppose that we find an unmistakably terrestrial style planet around a relatively nearby star (less than about 30 light years away), perhaps even around one of the Alpha Centauri members, a touch over four [...]

Keep reading »
Life, Unbounded

The molecules that made the universe

Imagine a molecule...

“We are starstuff”, it’s a well-used phrase in popular astronomy (yes, we are. The nuclei of most heavy atoms in your body were forged long before our solar system existed, a million kilometers down inside the cores of long-since-gone massive stars). “We contain matter as old as the universe” (absolutely. Pretty much all the hydrogen [...]

Keep reading »

More from Scientific American

Scientific American Dinosaurs

Get Total Access to our Digital Anthology

1,200 Articles

Order Now - Just $39! >

X

Email this Article

X