News tagged with northern hemisphere

Juno spacecraft images 'Big Dipper'

(Phys.org) -- In England it is known as the "Plough," in Germany the "Great Cart," and in Malaysia the "Seven Ploughs." Since humanity first turned its eyes skyward, the seven northern hemisphere stars that ...

May 11, 2012
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Atmospheric warming altering ocean salinity

The warming climate is altering the saltiness of the world's oceans, and the computer models scientists have been using to measure the effects are underestimating changes to the global water cycle, a group ...

Apr 27, 2012
3.8 / 5 (22) 67 | with audio podcast

Dawn gets extra time to explore Vesta

(Phys.org) -- NASA's Dawn mission has received official confirmation that 40 extra days have been added to its exploration of the giant asteroid Vesta, the second most massive object in the main asteroid belt. ...

Apr 19, 2012
5 / 5 (4) 6 | with audio podcast

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, ...

Mar 06, 2012
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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 ...

Feb 23, 2012
4.4 / 5 (9) 6 | with audio podcast

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 ...

Jan 17, 2012
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