Southern Hemisphere

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Coordinates: 45°0′0″S 0°0′0″E / 45°S 0°E / -45; 0

The Southern Hemisphere is the half of a planet that is south of the equator—the word hemisphere (from the greek word σφαιρα (sphere) +ημι(half)) literally means 'half ball'. It is also that half of the celestial sphere south of the celestial equator.

Earth's southern hemisphere contains all or parts of four continents (Antarctica, Australia, parts of South America and parts of Africa), four oceans (South Atlantic, Indian, South Pacific, and Southern) and most of Oceania. Several islands off the Asian continental mainland are also in the Southern Hemisphere. Due to the tilt of Earth's rotation relative to the Sun and the ecliptic plane, summer is December 21 to March 21 and winter is June 21 to September 21. September 22 is the vernal equinox and March 21 is the autumnal equinox.

For more information about Southern Hemisphere, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with southern hemisphere

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Whale-sized genetic study largest ever for southern hemisphere humpbacks

Whale-sized genetic study largest ever for southern hemisphere humpbacks

Biology / Plants & Animals

created Oct 14, 2009 | popularity 5 / 5 (2) | comments 0

After 15 years of research in the waters of the South Atlantic and Indian Oceans, scientists from the Wildlife Conservation Society, the American Museum of Natural History, and an international coalition of ...


CU-Boulder Unmanned Aircraft Buzz Over Gigantic Holes in Antarctic Sea Ice

CU-Boulder Unmanned Aircraft Buzz Over Gigantic Holes in Antarctic Sea Ice

Space & Earth / Earth Sciences

created Sep 10, 2009 | popularity 2 / 5 (2) | comments 0

A series of record-setting unmanned research flights are providing University of Colorado at Boulder researchers with some of the first 3-D observations of gaping holes in the Antarctic sea ice known as polynyas ...


Return of swine flu: What's ahead for Americans? (AP)

Return of swine flu: What's ahead for Americans?

Medicine & Health / Diseases

created Aug 30, 2009 | popularity not rated yet | comments 0

(AP) -- The alarm sounded with two sneezy children in California in April. Just five months later, the never-before-seen swine flu has become the world's dominant strain of influenza, and it's putting a shockingly ...


Yellow-bellied sea snake

Venomous sea snakes play heads or tails with their predators

Biology / Ecology

created Aug 06, 2009 | popularity 5 / 5 (5) | comments 0

In a deadly game of heads or tails venomous sea snakes in the Pacific and Indian Oceans deceive their predators into believing they have two heads, claims research published today in Marine Ecology.


Aura Marks Five Years of Sky-High Atmosphere Research

Aura Marks Five Years of Sky-High Atmosphere Research

Space & Earth / Earth Sciences

created Aug 05, 2009 | popularity 4.8 / 5 (4) | comments 0

Imagine Earth without an atmosphere - without clouds, wind or air. Earth's atmosphere protects, transports, and reacts to life on Earth.


The auroras in the Northern and the Southern hemispheres are not identical

The auroras in the Northern and the Southern hemispheres are not identical (w/ Video)

Space & Earth / Earth Sciences

created Jul 23, 2009 | popularity 5 / 5 (7) | comments 12

In a Nature letter published July 23, 2009, Norwegian researchers present evidence that the auroras in the Northern and the Southern hemispheres can be totally asymmetric. These findings contradict the co ...


Study suggests H1N1 virus more dangerous than suspected

Study suggests H1N1 virus more dangerous than suspected

Medicine & Health / Research

created Jul 13, 2009 | popularity 4.1 / 5 (20) | comments 3

(PhysOrg.com) -- A new, highly detailed study of the H1N1 flu virus shows that the pathogen is more virulent than previously thought.


Cassini Finds Titan's Clouds Hang on to Summer

Cassini Finds Titan's Clouds Hang on to Summer

Space & Earth / Space Exploration

created Jun 03, 2009 | popularity 4.8 / 5 (4) | comments 0

(PhysOrg.com) -- Cloud chasers studying Saturn's moon Titan say its clouds form and move much like those on Earth, but in a much slower, more lingering fashion.


SAfricans begin removing bodies of beached whales (AP)

SAfricans begin removing bodies of beached whales

Biology / Plants & Animals

created May 31, 2009 | popularity not rated yet | comments 1

(AP) -- Authorities on Sunday began the grim task of removing the carcasses of 55 whales that beached themselves and had to be shot despite the frantic rescue efforts of hundreds of volunteers.


NYC has first swine flu death; cases soar in Japan (AP)

NYC has first swine flu death; cases soar in Japan

Medicine & Health / Diseases

created May 18, 2009 | popularity 1 / 5 (1) | comments 0

(AP) -- Swine flu and the possibility of a vaccine topped the agenda Monday as the World Health Organization opened its annual meeting amid concern that the virus continues to spread - and kill - around the ...


In swine flu, key moments and decisions lie ahead (AP)

In swine flu, key moments and decisions lie ahead

Medicine & Health / Diseases

created May 10, 2009 | popularity 1 / 5 (1) | comments 0

(AP) -- The most pivotal moments in the swine flu saga are yet to come. Will it sweep through impoverished Southern Hemisphere countries in the next few months? Will it roar back in the rest of the world ...


Southern Hemisphere Ants Richer and More Diversified

Southern Hemisphere Ants Richer and More Diversified

Biology / Plants & Animals

created May 06, 2009 | popularity 4.5 / 5 (2) | comments 0

There are fewer species of ants in the northern hemisphere than in the southern hemisphere. This is the conclusion drawn by an international team of scientists that have studied 1,003 local ant assemblages ...


Flu could flourish in southern hemisphere winter (AP)

Flu could flourish in southern hemisphere winter

Medicine & Health / Diseases

created May 04, 2009 | popularity 3 / 5 (2) | comments 0

(AP) -- Southern hemisphere countries that have largely escaped swine flu infections could soon become more vulnerable, experts warn, as the approaching winter brings with it an elevated risk of the virus ...


Crossing the icy unknown, hunting climate clues (AP)

Crossing the icy unknown, hunting climate clues

Space & Earth / Earth Sciences

created Mar 21, 2009 | popularity 4.3 / 5 (29) | comments 0

(AP) -- On the 27th day of their trek, a dozen "black specks" of humanity crawling across Antarctica's vast white silence, Lou Albershardt heard a sound she'd never heard in two decades on the ice.


The First Antarctic Ice Sheet

CO2 drop and global cooling caused Antarctic glacier to form

Space & Earth / Earth Sciences

created Feb 26, 2009 | popularity 3.1 / 5 (20) | comments 18

(PhysOrg.com) -- Global climate rapidly shifted from a relatively ice-free world to one with massive ice sheets on Antarctica about 34 million years ago. What happened? What changed? A team of scientists ...