Probing question: What is a molecular clock?

It doesn't tick, it doesn't have hands, and it doesn't tell you what time of day it is. But a molecular clock does tell time -- on an epoch scale. The molecular clock, explained S. Blair Hedges, is a tool used to calculate ...

Comet probe Rosetta detects the 'most wanted molecule'

ESA's Rosetta spacecraft has made the first measurement of molecular nitrogen at a comet, providing clues about the temperature environment in which Comet 67P/Churyumov-Gerasimenko formed.

The chemistry that could feed life within Saturn's moon Enceladus

Saturn's 502km-diameter icy moon Enceladus has fascinated scientists since it was first seen up close by NASA's Voyager probes in the 1980s. The moon is venting plumes of ice particles into space including traces of methane, ...

Fiber-optic probe can see molecular bonds

In "Avengers: Endgame," Tony Stark warned Scott Lang that sending him into the quantum realm and bringing him back would be a "billion-to-one cosmic fluke."

New molecular force probe stretches molecules, atom by atom

Chemists at the University of Illinois have created a simple and inexpensive molecular technique that replaces an expensive atomic force microscope for studying what happens to small molecules when they are stretched or compressed.

Polymer Nanotubes as Molecular Probes and DNA Carriers

By growing polymers on a porous aluminum oxide template, researchers at the Seoul National University in Korea have fabricated polymer nanotubes to which they can attach two different types of molecules. These new nanoscale ...

Five-dimensional crystallography probes molecular structure

( —Successful development of new pharmaceuticals could be the payoff from five-dimensional crystallography, a new experimental technique employed by researchers carrying out studies at the BioCARS facility at the ...

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