NASA scientists want to solve a mystery: Why did life "turn left?"
When NASA launched a spacecraft to an asteroid, scientists patiently waited for their chance to look at bits of the space ...
The Scientist2 年
Left-Handed DNA Has a Biological Role Within a Dynamic Genetic Code
The DNA molecule was composed of the traditional sugar backbones and nucleotide pairs, but rather than the well-known right-handed spiral of the double helix structure, famously discovered by Watson ...
Astronomy on MSN8 天
Scientists find life’s ‘building blocks’ in asteroid Bennu samples
The meteor fragments returned by OSIRIS-REx shed light on the entwined history of water and the chemical ingredients of life ...
University of Bristol2 年
Molecule of the Month
On one hand, it would seem that nature could simply choose either chiral form of any molecule to play with. Many molecules can exist in two so-called ... a possible trigger that could have fired the ...