Muscles can 'ask' for the energy they need

Muscles require energy to perform all of the movements that we do in a day, and now, for the first time, researchers at the Texas A&M College of Medicine have shown how muscles "request" more energy from fat storage tissues ...

Active 24/7 and doing great

Circadian clocks control the day-night cycle of many living beings. But what do the pacemakers do in animals whose activities do not follow this pattern? Scientists from the University of Würzburg have now looked into this ...

How circadian clocks communicate with each other

Multiple biological clocks control the daily rhythms of physiology and behavior in animals and humans. Whether and how these clocks are connected with each other is still a largely open question. A new study now shows that ...

New light sensing molecule discovered in the fruit fly brain

Six biological pigments called rhodopsins play well-established roles in light-sensing in the fruit fly eye. Three of them also have light-independent roles in temperature sensation. New research shows that a seventh rhodopsin, ...

Feeling the rhythm

Many astronauts play instruments, and some have even made music in space. Few have danced in space, though, perhaps because crew members find it difficult to tap their toes when weightless. Or it could be that spending time ...

Image: Cygnus spacecraft attached to space station's Unity module

Orbital ATK's Cygnus cargo craft (left) is seen from the Cupola module windows aboard the International Space Station on Oct. 23, 2016. The main robotic work station for controlling the Canadarm2 robotic arm is located inside ...

Blast of thin air can reset circadian clocks

We might not think of our circadian clock until we are jetlagged, but scientists continue to puzzle over what drives our biological timepiece. Now, a study published October 20 in Cell Metabolism has found that variations ...

Image: Antares Rocket Raising

The Orbital ATK Antares rocket, with the Cygnus spacecraft onboard, is raised into the vertical position on launch Pad-0A, Friday, Oct. 14, 2016, at NASA's Wallops Flight Facility in Virginia.

Melatonin, biological clock keep singing fish on time

In the 1980s, people living on houseboats in the San Francisco Bay were puzzled by a droning hum of unknown origin that started abruptly in the late evening and stopped suddenly in the morning.

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