News tagged with northern hemisphere

STAR TRAK for March 2012

Mars was opposite the sun in our sky on March 3, rising at sunset and remaining visible all night. If you looked to the east as the sky darkened, you could see the Red Planet gleaming at its biggest and brightest, ...

dateMar 06, 2012 in Space Exploration
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The many moods of Titan

(PhysOrg.com) -- A set of recent papers, many of which draw on data from NASA's Cassini spacecraft, reveal new details in the emerging picture of how Saturn's moon Titan shifts with the seasons and even throughout ...

dateFeb 23, 2012 in Space Exploration
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Why does Sirius twinkle?

At this time of year, after dark we in the northern hemisphere are able to see the mighty constellation of Orion rise high in the sky with a very bright companion in a nearby constellation: Sirius – The ...

dateJan 17, 2012 in Astronomy
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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 ...

dateJan 12, 2012 in Astronomy
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2012: Shadow of the Dark Rift

(PhysOrg.com) -- One of the most bizarre theories about 2012 has built up with very little attention to facts. This idea holds that a cosmic alignment of the sun, Earth, the center of our galaxy -- or perhaps ...

dateDec 22, 2011 in Astronomy
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Marine predators in trouble: researchers

Iconic marine predators such as sharks, tunas, swordfish, and marlins are becoming increasingly rare under current fishing trends, say University of British Columbia researchers.

dateDec 05, 2011 in Ecology
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