0

December 14, 2015 AT 1:00 am

Astrochemists Discovering Alien Molecules #Space

NewImage

Super interesting read from Scientific American about molecules observed in space.

Something strange was hiding in the Horsehead. The nebula, named for its stallionlike silhouette, is a towering cloud of dust and gas 1,500 light-years from Earth where new stars are continually born. It is one of the most recognizable celestial objects, and scientists have studied it intensely. But in 2011 astronomers from the Institute of Millimeter Radioastronomy (IRAM) and elsewhere probed it again. With IRAM’s 30-meter telescope in the Spanish Sierra Nevada, they homed in on two portions of the horse’s mane in radio light. They weren’t interested in taking more pictures of the Horsehead; instead, they were after spectra—readings of the light broken down into their constituent wavelengths, which reveal the chemical makeup of the nebula. Displayed on screen, the data looked like blips on a heart monitor; each wiggle indicated that some molecule in the nebula had emitted light of a particular wavelength.

Every molecule in the universe makes its own characteristic wiggles based on the orientation of the protons, neutrons and electrons within it. Most of the wiggles in the Horsehead data were easily attributable to common chemicals such as carbon monoxide, formaldehyde and neutral carbon. But there was also a small, unidentified line at 89.957 gigahertz. This was a mystery—a molecule completely unknown to science.


Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!


Maker Business — Steve Ballmer Serves Up a Fascinating Data Trove

Wearables — Chalk it up

Electronics — Look to ferrites (no, not ferrets, the European polecat) when faced with high frequency

Biohacking — A Run in the Altra IQ Smart Shoes

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.