The Sahara and Arabian deserts did not cool as much as the rest of the Northern Hemisphere during the Little Ice Age, but in fact were drier 200 years ago than they are today, according to a new study.
Earth Sciences
Sep 19, 2018
0
54
Calvin College professor of astronomy Larry Molnar made a bold announcement in 2017—he and his team had identified a binary star in the constellation Cygnus, the Swan, that was a strong candidate to merge and explode in ...
Astronomy
Sep 10, 2018
3
253
A new Portland State University study shows that not all populations of a single, widely spread tree species respond the same to climate change, something scientists will need to consider when making climate change projections.
Environment
Jun 8, 2018
0
64
Cataclysmic variable stars (CVs) are white dwarf stars that are accreting from an orbiting, low mass binary companion star. The accretion is facilitated by the proximity of the stars; typical orbital periods range from about ...
Astronomy
Apr 9, 2018
0
165
The face of American forests is changing, thanks to climate change-induced shifts in rainfall and temperature that are causing shifts in the abundance of numerous tree species, according to a new paper by University of Florida ...
Environment
Mar 21, 2018
0
144
The extreme wet and dry periods Mongolia has experienced in the late 20th and early 21st centuries are rare but not unprecedented and future droughts may be no worse, according to an international research team that includes ...
Environment
Mar 14, 2018
0
25
Some 800 million people around the world depend on livestock that graze on natural vegetation for their livelihoods and food security. In a good season, grasses and other plants flourish, supporting robust herds. In a bad ...
Environment
Feb 19, 2018
1
52
Many tropical or subtropical regions could see sharp increases in natural temperature variability as Earth's climate warms over coming decades, a new Duke University-led study suggests.
Earth Sciences
Sep 5, 2017
2
42
The Seven Sisters, as they were known to the ancient Greeks, are now known to modern astronomers as the Pleiades star cluster – a set of stars which are visible to the naked eye and have been studied for thousands of years ...
Astronomy
Aug 25, 2017
0
766
A surprising new class of X-ray pulsating variable stars has been discovered by a team of American and Canadian astronomers led by Villanova University's Scott Engle and Edward Guinan. Part of the Villanova Secret Lives ...
Astronomy
Mar 24, 2017
0
62
