Almost 2000 exoplanets have been discovered to date, ranging from rocky Earth-like planets to hot-Jupiters, and orbiting every type of star. But how many of these distant worlds are habitable? Today's technology means that ...
Astronomy
Jul 8, 2015
0
72
The ozone layer - which protects us from harmful ultraviolet radiation - is recovering at the poles, but unexpected decreases in part of the atmosphere may be preventing recovery at lower latitudes.
Environment
Feb 6, 2018
4
475
Despite the obvious doom and gloom associated with mass extinctions, they have a tendency to capture our imagination. After all, the sudden demise of the dinosaurs, presumably due to an asteroid strike, is quite an enthralling ...
Earth Sciences
Oct 10, 2016
0
65
A large team of atmospheric specialists has found that when the Hunga-Tonga Hunga-Ha'apai volcano erupted last year, it took part of the ozone layer with it. Their findings are published in the journal Science.
Carbon tetrachloride (CCl4) was once commonly used as a cleaning agent and remains an important compound in chemical industry. CCl4 is responsible for that sickly sweet smell associated with dry cleaning solvents from decades ...
Environment
Feb 29, 2016
1
531
(Phys.org)—A team of researchers from Germany and Switzerland has found examples of microbial life from over 3 billion years ago, that appeared to have evaded UV radiation by hiding in subsurface cavities. In their paper ...
Scientists report that chemicals that are not controlled by a United Nations treaty designed to protect the Ozone Layer are contributing to ozone depletion.
Earth Sciences
Feb 16, 2015
6
1052
If alien geologists were to visit our planet 10 million years from now, would they discern a distinct human fingerprint in Earth's accumulating layers of rock and sediment?
Environment
May 15, 2011
13
0
The global market for rocket launches may require more stringent regulation in order to prevent significant damage to Earth's stratospheric ozone layer in the decades to come, according to a new study by researchers in California ...
Space Exploration
Mar 31, 2009
24
0
Scientists are facing an uphill battle to warn the public about pressing issues due to dissenters in their ranks who intentionally sow uncertainty, says a US historian.
Other
Mar 29, 2012
118
0
