Epoch-defining study pinpoints when humans came to dominate planet Earth
The human-dominated geological epoch known as the Anthropocene probably began around the year 1610, with an unusual drop in atmospheric carbon dioxide and the irreversible exchange of species between the ...
Organic molecules in Titan's atmosphere are intriguingly skewed
(Phys.org) —While studying the atmosphere on Saturn's moon Titan, scientists discovered intriguing zones of organic molecules unexpectedly shifted away from its north and south poles. These misaligned features ...
Ancient rocks show life could have flourished on Earth 3.2 billion years ago
A spark from a lightning bolt, interstellar dust, or a subsea volcano could have triggered the very first life on Earth. But what happened next? Life can exist without oxygen, but without plentiful nitrogen ...
Winter sets global heat record despite US East's big chill
Federal records show that this winter and the first two months of 2015 were the hottest on record globally, with a chilly U.S. East sticking out like a cold thumb in a toastier world.
New milestone in the search for water on distant planets
Astronomers have found water vapor in the atmosphere of a planet about four times bigger than Earth, in the constellation Cygnus about 124 light years - or nearly 729 trillion miles - from our home planet. ...
Astronomers pinpoint 'Venus Zone' around stars
San Francisco State University astronomer Stephen Kane and a team of researchers presented today the definition of a "Venus Zone," the area around a star in which a planet is likely to exhibit the unlivable ...
New ozone-destroying gases on the rise
Scientists report that chemicals that are not controlled by a United Nations treaty designed to protect the Ozone Layer are contributing to ozone depletion.
Physicists solve longstanding puzzle of how moths find distant mates
(Phys.org) —The way in which male moths locate females flying hundreds of meters away has long been a mystery to scientists.
Planets outside our solar system more hospitable to life than thought
A study by astrophysicists at the University of Toronto suggests that exoplanets - planets outside our solar system - are more likely to have liquid water and be more habitable than we thought.
Data shows fewer tornado days in U.S. but more per event over past couple decades
The Curiosity robot confirms methane in Mars' atmosphere which may hint that existed life
The tunable laser spectrometer in the SAM (Sample Analysis at Mars) instrument of the Curiosity robot has unequivocally detected an episodic increase in the concentration of methane in Mars' atmosphere after ...
Astronomers thrilled by extreme storms on Uranus
The normally bland face of Uranus has become increasingly stormy, with enormous cloud systems so bright that for the first time ever, amateur astronomers are able to see details in the planet's hazy blue-green ...
Asian monsoon much older than previously thought
The Asian monsoon already existed 40 million years ago during a period of high atmospheric carbon dioxide and warmer temperatures, reports an international research team led by a University of Arizona geoscientist.
New chemical analysis of ancient Martian meteorite provides clues to planet's history of habitability
A new analysis of a Martian rock that meteorite hunters plucked from an Antarctic ice field 30 years ago this month reveals a record of the planet's climate billions of years ago, back when water likely washed ...