Archive: 04/19/2013

A global murmur, then unusual silence

In the global aftershock zone that followed the major April 2012 Indian Ocean earthquake, seismologists noticed an unusual pattern. The magnitude (M) 8.6 earthquake, a strike-slip event at intraoceanic tectonic plates, caused ...

Apr 19, 2013
4.4 / 5 (5) 2

Measuring the hazards of global aftershock

The entire world becomes an aftershock zone after a massive magnitude (M) 7 or larger earthquake—but what hazard does this pose around the planet? Researchers are working to extend their earthquake risk estimates over a ...

Apr 19, 2013
5 / 5 (4) 1

A fresh take on the Horsehead Nebula

(Phys.org) —To celebrate its 23rd year in orbit, the NASA/ESA Hubble Space Telescope has released a stunning new image of one of the most distinctive objects in our skies: the Horsehead Nebula. This image ...

Apr 19, 2013
4.8 / 5 (24) 4 | with audio podcast

Random walks on DNA

Scientists have revealed how a bacterial enzyme has evolved an energy-efficient method to move long distances along DNA. The findings, published in Science, present further insight into the coupling of chemical and mechan ...

Apr 19, 2013
4.3 / 5 (3) 0 | with audio podcast

Mine disaster: Hundreds of aftershocks

A new University of Utah study has identified hundreds of previously unrecognized small aftershocks that happened after Utah's deadly Crandall Canyon mine collapse in 2007. The aftershocks suggest the collapse ...

Apr 19, 2013
5 / 5 (5) 0 | with audio podcast