For some time, scientists have known that Mars was once a much warmer and wetter environment than it is today. However, between 4.2 and 3.7 billion years ago, its atmosphere was slowly stripped away, which turned the surface ...
Space Exploration
Sep 14, 2018
0
41
(AP) -- Abandoned mercury mines throughout central California's rugged coastal mountains are polluting the state's major waterways, rendering fish unsafe to eat and risking the health of at least 100,000 impoverished people.
Environment
Sep 18, 2009
1
0
The majority of people on Earth people will face severe water shortages within a generation or two if pollution and waste continues unabated, scientists warned at a conference in Bonn Friday.
Environment
May 24, 2013
22
0
River deltas, with their intricate networks of waterways, coastal barrier islands, wetlands and estuaries, often appear to have been formed by random processes, but scientists at the University of California, Irvine and other ...
Mathematics
Oct 19, 2017
3
168
The American blue crab (Callinectes sapidus) is an invasive voracious alien species, with no known predators and with high reproductive and survival rates, which has now spread throughout the Mediterranean. Since it appeared ...
Plants & Animals
Jan 28, 2019
0
104
(PhysOrg.com) -- Astronomers have turned up the first direct proof that "standard candles" used to illuminate the size of the universe, termed Cepheids, shrink in mass, making them not quite as standard as once thought. The ...
Astronomy
Jan 12, 2011
43
0
(PhysOrg.com) -- One of the fascinating aspects of viewing Earth at night is how well the lights show the distribution of people. In this view of Egypt, the population is shown to be almost completely concentrated along the ...
Space Exploration
Apr 21, 2011
3
0
Research by Indiana University geologists suggests that an intermediate amount of vegetation—not too little and not too much—is most effective at stabilizing freshwater river deltas.
Earth Sciences
Aug 24, 2014
0
0
NASA successfully launched its first Earth satellite designed to collect global observations of the vital soil moisture hidden just beneath our feet.
Space Exploration
Feb 1, 2015
0
951
For the first time, scientists have provided reliable regional estimates of land subsidence and water-level rise in the Ganges-Brahmaputra-Meghna delta. Depending on the region of the delta, water-level rise could reach 85 ...
Earth Sciences
Jan 6, 2020
0
145
