[The New York Times]
Life’s first spark recreated in the laboratory: researchers have synthesized the basic ingredients of RNA, a molecule from which the simplest self-replicating structures are made. Until now, they couldn’t explain how these ingredients might have formed.

[ABC News]
A pair of NASA astronauts have completed the first of five spacewalks to repair the Hubble Space Telescope.

[The New York Times]
What is really going on in a colony of ants or bees?

[Physorg.com]
Vehicles on America's roads today get only about three miles more per gallon than vehicles back in 1923.

[Science Daily]
Sleep apnea may not be closely linked to heart failure severity.