News tagged with spin axis
Of orbits and ice ages: Researcher confirms that axis shifts help to propel temperature changes
Though it was first suggested well over a century ago, the hypothesis that changes in Earths orientation relative to its orbit influence the growth and decline of ice sheets was only recently tested.
Space & Earth / Earth Sciences
Jan 11, 2012 |
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New evidence suggests large asteroid strike may have influenced Mercury's spin
(PhysOrg.com) -- Planets orbiting a sun generally, but not always spin on their axis. Some spin east to west, others west to east. Those that don’t spin are said to be tidal locked with their sun; always ...
Search results for spin axis
High planetary tilt lowers odds for life?
Highly-tilted worlds would have extreme seasons, subjecting life to alternating periods of scorching and subzero temperatures. This could make the development of all but hardiest, simplest creatures a long ...
Space & Earth / Space Exploration
Feb 06, 2012 |
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Manipulating the texture of magnetism
Knowing how to control the combined magnetic properties of interacting electrons will provide the basis to develop an important tool for advancing spintronics: a technology that aims to harness these properties ...
Feb 03, 2012 |
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UA makes mirrors for world's largest telescope
(PhysOrg.com) -- The second of seven 27-foot diameter mirrors for the Giant Magellan Telescope was cast on Jan. 14 inside a rotating furnace at the UA's Steward Observatory Mirror Lab.
Space & Earth / Space Exploration
Jan 18, 2012 |
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Loss of planetary tilt could doom alien life
Although winter now grips much of the Northern Hemisphere, those who dislike the cold weather can rest assured that warmer months shall return. This familiar pattern of spring, summer, fall and winter does ...
Jan 12, 2012 |
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Krawczynski group receives NASA grant to spy on black holes
(PhysOrg.com) -- Henric Krawczynski, PhD, professor of physics in Arts & Sciences at Washington University in St. Louis, is a big-game hunter of the astrophysical variety he hunts celestial beasts, ...
Space & Earth / Space Exploration
Jan 06, 2012 |
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'Greeley Haven' is winter workplace for Mars rover
(PhysOrg.com) -- NASA's Mars Exploration Rover Opportunity will spend the next several months at a site informally named "Greeley Haven." The name is a tribute to planetary geologist Ronald Greeley (1939-2011), ...
Space & Earth / Space Exploration
Jan 06, 2012 |
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First ever direct measurement of the Earth's rotation
A group with researchers of the Technical University of Munich, Germany, are the first to plot changes in the Earth's axis through laboratory measurements. To do this, they constructed the world's most stable ...
Dec 22, 2011 |
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Listening to the stars
It is almost night on the island of Puerto Rico. Astronomer Joanna Rankin raises her head toward the sky. A few of the brightest stars shine through blue cracks in a ragged dome of gray clouds. To her back, ...
Dec 01, 2011 |
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Are pulsars giant permanent magnets?
Some of the most bizarre phenomenon in the universe are neutron stars. Very few things in our universe can rival the density in these remnants of supernova explosions. Neutron stars emit intense radiation ...
Nov 22, 2011 |
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Millisecond pulsar in spin mode
Astronomers have tracked down the first gamma-ray pulsar in a globular cluster of stars. It is around 27,000 light years away and thus also holds the distance record in this class of objects. Moreover, its ...
Nov 03, 2011 |
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List of search results for spin axis