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E.g., 03/29/2017
Your search has returned 157 images:
  • illustration of a pollinator drone in action
  • supermassive black hole
  • Bee on a tiny ball
Your search has returned 254 articles:
  • The Science Life

    Fleets of drones could pollinate future crops

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    Eijiro Miyako gets emotional about the decline of honeybees.

    “We need pollination,” he says. “If that system is collapsed, it’s terrible.”

    Insects, especially bees, help pollinate both food crops and wild plants. But pollinators are declining worldwide due to habitat loss, disease and exposure to pesticides, among other factors (SN: 1/23/16, p. 16).

    ...

    03/07/2017 - 12:00 Agriculture, Robotics, Ecology
  • The –est

    Black hole enjoys fantastically long stellar feast

    Black holes are speed eaters, usually scarfing down a star in less than a year. But a supermassive black hole in a galaxy about 1.8 billion light-years away has been gorging on a single star for more than 10 years – longer than any other observed supermassive black hole meal.

    Astronomers detected the extraordinary feast in X-ray images from ESA’s XMM-Newton spacecraft and NASA’s...

    02/27/2017 - 09:00 Astronomy
  • News

    Score! Bumblebees see how to sink ball in goal, then do it better

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    Even tiny brains can learn strange and tricky stuff, especially by watching tiny experts.

    Buff-tailed bumblebees got several chances to watch a trained bee roll a ball to a goal. These observers then quickly mastered the unusual task themselves when given a chance, researchers report in the Feb. 24 Science. And most of the newcomers even improved on the goal-sinking...

    02/23/2017 - 14:32 Animals
  • Feature

    30 years later, supernova 1987A is still sharing secrets

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    Ian Shelton was alone at a telescope in the remote Atacama Desert of Chile. After three hours getting a picture of the Large Magellanic Cloud, a wispy galaxy that orbits the Milky Way, he was plunged into darkness. High winds had taken hold of the rolltop door in the observatory’s roof, slamming it shut.

    “This was maybe telling me I should just call it a night,” says...

    02/08/2017 - 08:00 Astronomy
  • Mystery Solved

    Dragonfish opens wide with flex neck joint

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    Dragonfish are the stuff of nightmares with their oversized jaws and rows of fanglike teeth. The deep sea creatures may be only several centimeters long, but they can trap and swallow sizable prey. How these tiny terrors manage to open their mouths so wide has puzzled scientists, until now.

    In most fish, the skull is fused to the backbone, limiting their gape. But a...

    02/01/2017 - 14:34 Animals, Biophysics
  • News in Brief

    Bat robot takes wing

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    Fancy flight tricks are a breeze for a new flying robot. Call it an acrobat.

    Bat Bot, a lightweight flier with thin silicone wings stretched over a carbon fiber skeleton, can cruise, dive and bank turn just like its namesake, researchers report February 1 in Science Robotics.

    Such a maneuverable machine could one day soar up the towering structures of a...

    02/01/2017 - 14:13 Technology, Robotics
  • News

    What gives frog tongues the gift of grab

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    Frogs’ remarkable power to tongue-grab prey — some as big as mice or as oddly shaped as tarantulas — stems from a combo of peculiar saliva and a supersquishy tongue.

    The first detailed analysis of the stickiness of frog saliva shows that the fluid can shift rather abruptly from gooey to runny, says mechanical engineer Alexis Noel of Georgia Tech in Atlanta. Those...

    01/31/2017 - 19:05 Animals, Biophysics
  • News in Brief

    Heart-hugging robot does the twist (and squeeze)

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    A new squishy robot could keep hearts from skipping a beat.

    A silicone sleeve slipped over pigs’ hearts helped pump blood when the hearts failed, researchers report January 18 in Science Translational Medicine. If the sleeve works in humans, it could potentially keep weak hearts pumping, and buy time for patients waiting for a transplant.

    To make the device...

    01/18/2017 - 14:00 Technology, Robotics
  • News

    New molecular knot is most complex yet

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    One hundred and ninety-two atoms have tied the knot.

    Chains of carbon, hydrogen, oxygen and nitrogen atoms, woven together in a triple braid, form the most complex molecular knot ever described, chemists from the University of Manchester in England report in the Jan. 13 Science.

    Learning how to tie such knots could one day help researchers weave molecular...

    01/12/2017 - 14:00 Chemistry, Materials
  • Science Visualized

    Shimmering soap bubbles have a dark side

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    Zoom in on a soap bubble just before it bursts and brilliant, complex patterns emerge. Shimmery rainbows appear in thicker portions of the soap film, while clusters of dark spots appear in the thinnest regions.

    The thickness of the soap film determines the color seen. Light rays that reflect off of the top and bottom of the film combine to amplify particular...

    01/12/2017 - 07:00 Biophysics