It seems unthinkable, but for the first time in human history, ice is on course to disappear entirely from the North Pole this year.
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 â€“ and worrying â€“ 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.
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.