Mass extinction survival is more than just a numbers game
Widespread species are at just as high risk of being wiped out as rare ones after global mass extinction events, says new research by UK scientists.
Archaeology
Aug 11, 2015
1
56
11/08/2015
How massive can black holes get?
Without the light pressure from nuclear fusion to hold back the mass of the star, the outer layers compress inward in an instant. The star dies, exploding violently as a supernova.
Astronomy
Aug 11, 2015
7
63
Bringing the Tasmanian devil back to mainland Australia would restore ecosystem health
Reintroducing Tasmanian devils to the mainland could improve biodiversity by limiting the spread of red foxes and feral cats in habitats where dingoes have been culled, a new study suggests.
Plants & Animals
Aug 11, 2015
0
137
Team uses smart light, shadows to track human posture
A Dartmouth College team has created the first light-sensing system that reconstructs human postures continuously and unobtrusively, furthering efforts to create smart spaces in which people control their environment with ...
Engineering
Aug 11, 2015
0
48
What is the Oort Cloud?
For thousands of years, astronomers have watched comets travel close to Earth and light up the night sky. In time, these observations led to a number of paradoxes. For instance, where were these comets all coming from? And ...
Space Exploration
Aug 11, 2015
1
27
Environmental impacts of land use have been underestimated
Environmental impacts of land use have been widely assessed in recent years. In particular, carbon footprints of food and bioenergy production have been studied. Environmental impact assessments are used in decision-making ...
Environment
Aug 11, 2015
1
46
Sustainability matters, even in complex networks
You're driving down the highway in your Honda Civic. You press the pedal to the metal and the speedometer flips to 90 as you torque into the fast lane. How much effort have you, and the car, expended?
General Physics
Aug 11, 2015
0
62
National labs put power behind NASA's New Horizons mission to Pluto
After a journey of three billion miles lasting more than nine years, NASA's New Horizons mission finally flew by Pluto and its mysterious moons. The craft is powered by a radioisotope thermoelectric generator (RTG) that was ...
Space Exploration
Aug 11, 2015
1
86
Hackers accused of making $100M by peeking at press releases (Update 5)
An international web of hackers and traders made $100 million on Wall Street by stealing a look at corporate press releases before they went out and then trading on that information ahead of the pack, federal authorities ...
Internet
Aug 11, 2015
0
17
Why employees bend workplace confidential information rules
Researchers from Simon Fraser University's Beedie School of Business have found that organizations implementing rules that govern confidential information (CI) can make it difficult for employees to fulfill their roles – ...
Social Sciences
Aug 11, 2015
0
16
