News tagged with sun compass
Draft sequence of monarch butterfly genome presented
Each fall millions of monarch butterflies from across the eastern United States use a time-compensated sun compass to direct their navigation south, traveling up to 2,000 miles to an overwintering site in ...
Nov 23, 2011 |
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After the next sunset, please turn right: Bats navigate with the help of the sun
Despite the fact that bats are active after sunset, they rely on the sun as their most trusted source of navigation. Researchers from the Max Planck Institute for Ornithology found that the greater mouse-eared ...
Mar 29, 2010 |
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Migrating monarch butterflies 'nose' their way to Mexico
The annual migration of monarch butterflies from across eastern North America to a specific grove of fir trees in Mexico has long fascinated scientists who have sought to understand just how these delicate ...
Sep 24, 2009 |
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Genetic basis for migration
Scientists studying Eastern North American monarch butterflies (Danaus plexippus) have uncovered a suite of genes that may be involved in driving the butterflies to migrate towards Mexico for the winter. Their research, publis ...
Mar 31, 2009 |
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Search results for sun compass
Study finds 'cool' gas may form and strengthen sunspots
Hydrogen molecules may act as a kind of energy sink that strengthens the magnetic grip that causes sunspots, according to scientists from Hawaii and New Mexico using a new infrared instrument on an old telescope.
Jan 31, 2012 |
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Dung beetle dance provides crucial navigation cues
(PhysOrg.com) -- The dung beetle dance, performed as the dung beetle moves away from the dung pile with his precious dung ball, is a mechanism to maintain the desired straight-line departure from the pile, ...
Jan 18, 2012 |
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Fruit flies watch the sky to stay on course
Insects, equipped with complex compound eyes, can maintain a constant heading in their travels, some of them for thousands of miles. New research demonstrates that fruit flies keep their bearings by using ...
Jan 17, 2012 |
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2012: Magnetic pole reversal happens all the (geologic) time
Scientists understand that Earth's magnetic field has flipped its polarity many times over the millennia. In other words, if you were alive about 800,000 years ago, and facing what we call north with a magnetic ...
Space & Earth / Earth Sciences
Nov 30, 2011 |
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Viking 'sunstone' more than a myth
Ancient tales of Norse mariners using mysterious sunstones to navigate the ocean when clouds obscured the Sun and stars are more than just legend, according to a study published Wednesday.
Other Sciences / Archaeology & Fossils
Nov 02, 2011 |
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Humpback whale migration as straight as an arrow
(PhysOrg.com) -- Over the last eight years, researchers from the University of Canterbury have been tracking 16 radio-tagged humpback whales through their migratory paths and learned that these whales follow ...
Apr 22, 2011 |
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Vikings could have steered by polarized light
(PhysOrg.com) -- The Vikings are said to have been able to navigate with the aid of "sunstones" that allowed them to see the sun on cloudy or foggy days. Now scientists in Hungary and Sweden say the sunstones ...
Other Sciences / Archaeology & Fossils
Feb 03, 2011 |
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Brain 'GPS' illuminated in migratory monarch butterflies
A new study takes a close look at the brain of the migratory monarch butterfly to better understand how these remarkable insects use an internal compass and skylight cues to navigate from eastern North America to Mexico each ...
Medicine & Health / Neuroscience
Jan 26, 2011 |
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Protecting the North American power grid from widespread blackouts
Every hundred years or so, a solar storm comes along so potent it fills the skies of Earth with blood-red auroras, makes compass needles point in the wrong direction, and sends electric currents coursing through ...
Space & Earth / Space Exploration
Oct 26, 2010 |
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Researchers examine why some aurora displays flicker in the night sky
Look up into the night sky in Alaska, Northern Canada, or Russia just before dawn, and you may able to make out a faint whitish glow of the northern lights. Watch for a few minutes, and the lights will blink ...
Space & Earth / Space Exploration
Oct 04, 2010 |
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List of search results for sun compass
