Archive: 02/25/2009

Reversing ecology reveals ancient environments

From hair color to the ancestral line of parasitic bacteria, scientists can glean a lot from genes. But imagine if genes also revealed where you lived or who you spent time with. It turns out they do, if you know where and ...

Feb 25, 2009 5 / 5 (1) 0

Into the eye of the helix

(PhysOrg.com) -- The Helix Nebula, NGC 7293, lies about 700 light-years away in the constellation of Aquarius (the Water Bearer). It is one of the closest and most spectacular examples of a planetary nebula.

Feb 25, 2009 3.7 / 5 (7) 0

For psychiatric services, wait for the beep

Two-thirds of patients referred for psychiatric services following an emergency room visit are likely to reach only an answering machine when they call for help, compared to about 20 percent of patients calling medical clinics ...

Feb 25, 2009 not rated yet 0