The moon will blot out the sun next week in the only total solar eclipse of the year, providing a rare skywatching treat for parts of the Southern Hemisphere.
Earth’s motion around the Sun takes place on a slightly elongated orbit that has the shape of an ellipse, with a speed of 30 km per second. The Earth makes a complete revolution in 365.26 days.
This period is called a stellar year. The Earth’s axis is inclined constantly to the orbital plane, on which it encircles the Sun at an angle of 66.5 ‘. At the Earth moves around the sun axis does not change its position.
Strengthening global warming does not stop at least the next thousand years, even if a total ban on greenhouse emissions since 2100. This will lead to melting of glaciers in western Antarctica to 3000 mu.
Such conclusion was a group of researchers led by Professor Sean Marshall from the University of Calgary.
The discovery of the universe magnetic star – magnetar – a challenge well-known hypotheses about the origin of black holes. Magnetars – this is a special type of neutron stars with extremely powerful magnetic field. They are formed by gravitational collapse of a star-father dies and forms a supernova.
We know that the spinning of the earth, called rotation, causes day and night. The movement of the earth around the sun, that is its revolution, causes seasons.
White thought to be native only to the Northern Hemisphere, penguins can really be found in Antartica, Australia, New Zealand, South America, and South Africa.