Tag Archive for 'earth'

Peculiar, junior-sized supernova discovered by New York teen

Published on June 17, 2009 in Science and Space. 0 Comments Tags: , , , , , , .

supernova_01A 14-year-old student from New York has apparently become the youngest person in the world to discover a supernova, the weakest-ever found in a nearby galaxy.

Astronomers have confirmed that the supernova discovered in November last year by Caroline Moore — called SN 2008ha — is a new type of stellar explosion, 1000 times more powerful than a nova but 1000 times less powerful than a supernova.

Astronomers say that it may be the weakest supernova ever seen.

Even though this explosion was a weakling compared to most supernovae, for a short time SN 2008ha was 25 million times brighter than the sun. However, since it is 70 million light years away, it appeared very faint viewed from Earth.

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The Causes of Global Warming

Published on May 16, 2009 in Environment and Science. 0 Comments Tags: , , , , , , .

The climate of our planet varies depending on internal or natural processes, volcanic eruptions or changes in the Earth’s orbit. The growth in the Earth’s temperature over the last 50 years was the results of several underlying causes, both natural and man-made. Greenhouse gases are those gases that contribute to the greenhouse effect. This causes are either caused by nature or by several human activities, such as the burning of fossil fuels.

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