06/09/2018

Black hole disks may be hiding in the centers of galaxies

Galactic nuclei are teeming with black holes. Earlier this year, 12 X-ray binaries were discovered at the Milky Way's center which suggested that thousands of black holes may be hiding in that region. A recent study shows ...

Aeolus laser shines light on wind

Following the launch of Aeolus on 22 August, this extraordinary satellite's instrument has been turned on and is now emitting pulses of ultraviolet light from its laser, which is fundamental to measuring Earth's wind. And, ...

Bees coordinate strategy for defending colony, study reveals

The Brazilian stingless bee Tetragonisca angustula (jataí in Portuguese) deploys a different strategy for defending its nests from other social insect species. In addition to posting sentinels at the nest entrance, as do ...

A step ahead in pharmaceutical research

Hormones and other neurotransmitters, but also drugs, act upon receptors. "Their active substances bind to the receptors and modify the three-dimensional receptor arrangement regulating the downstream signal pathways," says ...

Building 3-D atomic structures atom by atom using lasers

A team of researchers at Centre National de la Recherche Scientifique (CNRS) in France has developed a technique for arranging cold atoms into useful 3-D arrayed structures. In their paper published in the journal Nature, ...

Global warming—worrying lessons from the past

Fifty-six million years ago, the Earth experienced an exceptional episode of global warming. In a very short time on a geological scale, within 10 to 20,000 years, the average temperature increased by five to eight degrees, ...

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