The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent. Antarctica is considered as a desert as this place is the coldest, driest, and windiest on the earth. It has the highest average elevation of all the continents. Now, NASA ice scientists have found a shrimp-like creature and a possible jellyfish 'frolicking' beneath 600 feet of solid Antarctic ice, where only microbes were expected to live.
Extraterrestrial life is life originating outside of the Earth. It is the subject of astrobiology and its existence remains hypothetical, because there is no credible evidence of extraterrestrial life which has been generally accepted by the scientific community.
The Drake equation is a famous result in the speculative fields of exobiology and the search for extraterrestrial intelligence. It can be used to predicate (read as calculate) the number of advanced civilizations in our galaxy right now. But the result are not accurate and lots of criticism involved.
Disagreement (ie general ignorance) over these numbers leads to estimates of the number intelligent civilisations in our galaxy that range from 10^-5 to 10^6.
i. panspermia predicts 37964.97 advanced civilisations in our galaxy with a standard deviation of 20.
ii. the rare life hypothesis predicts 361.2 advanced civilisations with an SD of 2
iii. the tortoise and hare hypothesis predicts 31573.52 with an SD of 20.
And the number of intelligent civilisations in our galaxy is…
North Pole defined as the point in the northern hemisphere where the Earth's axis of rotation meets the Earth's surface. The north pole is often credited as having snow. But polar scientists reveal dramatic new evidence of climate change - no more ice at north pole.
The North Pole ice is melting at the highest rate and as a result, there will be no ice. In other words, the pole may be completely ice-free at the surface and composed of nothing but open water by September.
The disappearance of the Arctic sea ice, making it possible to reach the Pole sailing in a boat through open water, would be one of the most dramatic – and worrying – examples of the impact of global warming on the planet. Scientists say the ice at 90 degrees north may well have melted away by the summer.
If it happens, it raises the prospect of the Arctic nations being able to exploit the valuable oil and mineral deposits below these a bed which have until now been impossible to extract because of the thick sea ice above.
=> Exclusive: No ice at the North Pole
This is really a good news. A galaxy is a massive, gravitationally bound system consisting of stars, an interstellar medium of gas and dust, and dark matter. Our Sun and Earth are part of the Milky Way galaxy. Basically the Sun is one of the stars in the Milky Way galaxy; the Solar System includes the Earth. Now scientist suggests more than half the Sun-like stars in the Milky Way could have similar planetary systems just like our solar system. In other words there may be many more worlds in our galaxy. From BBC news site:
Rocky planets, possibly with conditions suitable for life, may be more common than previously thought in our galaxy, a study has found.
New evidence suggests more than half the Sun-like stars in the Milky Way could have similar planetary systems.
There may also be hundreds of undiscovered worlds in outer parts of our Solar System, astronomers believe.
Future studies of such worlds will radically alter our understanding of how planets are formed, they say.
Planet-hunters set for big bounty
Insect are the most diverse group of animals on the Earth, with over a million described species— more than half of all known living organism. Insects may be found in nearly all environments on the planet, although only a small number of species occur in the oceans. Now there is a new theory that suggests that insect attack may have finished off dinosaurs. An important contributor to the demise of the dinosaurs, experts say, could have been the rise and evolution of insects, especially the slow-but-overwhelming threat posed by new disease carriers.
From the article:
Asteroid impacts or massive volcanic flows might have occurred around the time dinosaurs became extinct, but a new arguemet is that the mightiest creatures the world has ever known may have been brought down by a tiny, much less dramatic force -- biting, disease-carrying insects.
=> Insect Attack May Have Finished Off Dinosaurs
The Arctic Ocean, located in the northern hemisphere and mostly in the Arctic north polar region. Arctic summer melting in 2007 set new records. The polar ice pack is thinning, and there is a seasonal hole in ozone layer in many years. Reduction of the area of Arctic sea ice will have an effect on the planet's albedo, thus possibly affecting global warming within a positive feedback mechanism
The most important areas of pack ice are the polar ice packs formed from seawater in the Earth's polar regions: the Arctic ice pack of the Arctic Ocean and the Antarctic ice pack of the Southern Ocean. Scientists in the US have presented one of the most dramatic forecasts yet for the disappearance of Arctic sea ice. In the end, it will just melt away quite suddenly. It might not be as early as 2013 but it will be soon, much earlier than 2040.
From the BBC Story:
Their latest modelling studies indicate northern polar waters could be ice-free in summers within just 5-6 years.
Professor Wieslaw Maslowski told an American Geophysical Union meeting that previous projections had underestimated the processes now driving ice loss.
Summer melting this year reduced the ice cover to 4.13 million sq km, the smallest ever extent in modern times.
Read more: Arctic summers ice-free 'by 2013'...
Global warming refers to the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.Global warming refers to the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.
The geographic distribution of surface warming during the 21st century calculated by the HadCM3 climate model if a business as usual scenario is assumed for economic growth and greenhouse gas emissions. In this figure, the globally averaged warming corresponds to 3.0 °C (5.4 °F).
Now, NEW Zealand scientists hope a newly discovered bacterium that eats methane could ultimately help counter a key global warming gas.
The bacterium was discovered living about 30cm below the ground in the hot, acidic environment at Hells Gate in Rotorua, a geothermal area.
Recently I was reading very nice piece of information. According to Swami Vivekananda "
The whole secret of existence is to have no fear. Never fear what will become of you. Depend on no one. The movement you reject all help you are free".
All our problems and fears will come and go, just as we go, even god comes on this earth and go, and so have no fear. Always accept conditions, don't expect & accept help form anyone.. this way we will not worry more about problems!