Emerged over the Arctic last winter ozone hole was the most “profound” on record (more than 20 years) and closer in size to the Antarctic ozone hole.
The sharp decline in stratospheric ozone, “ozone hole” was first discovered in 1980 over Antarctica. According to modern concepts, the destruction of ozone (triatomic oxygen O3) is associated with exposure to substances of chlorofluorocarbons (CFC), the most famous of which is a group of freon.
Under the action of sunlight and stratospheric cooling, these substances form a corrosive chlorine compounds that destroy the ozone layer – a shield that protects life on Earth from harmful ultraviolet radiation hard. In 1987 he was adopted by the Montreal Protocol, which prohibits the production of CFC, however, in their natural disappearance will take several decades. Read more »
European Space Agency (ESA) in collaboration with NASA is preparing to launch a unique spacecraft Solar Orbiter, which will be released into orbit around the Sun at a record close to the light – only 42 million km.
The project was formally approved by member states of ESA on Tuesday. Start the machine is scheduled for 2017. The entire project will cost nearly a billion euros (more than $ 1.3 billion). NASA to launch its offer booster, as well as take part in the construction of two instruments aboard the orbiter.
Delegates attending the meeting of the Executive Committee of the ESA in Paris, also approved a project to study the most mysterious phenomena in the universe – dark matter and dark energy. Read more »
A team of researchers from Argentina and Brazil, found that some kinds of terrestrial organisms can survive on the Jovian moon Europa.
The experiment involved extremophile organisms (ie, able to live and thrive in extreme environments) – archaea Natrialba magadii, Haloferax volcanii and bacteria Deinococcus radiodurans. The aim of researchers was the intention to find out how well the organisms can tolerate a space flight (eg an asteroid) and the conditions on the surface of a celestial body (Mars, or Europe) Read more »
Overcoming the speed of light – no longer a fantasy. Neutrinos, which was released from a Swiss laboratory, has overcome the speed of light for 60 nanoseconds. Fix the sensor signals are managed in Italy. What do the results of this experiment, the air of “Morning of Russia” explained the deputy dean of the Faculty of Physics Lomonosov Moscow State University Alexander Studenikin.
“We still know very little about the properties of the particles – the neutrino. We still do not know what the mass of this particle, which is the main feature. At the same time, we know that in every cubic centimeter of here in the studio is up to 300 neutrinos, which have come from the big bang, “- said the scientist. The body of each person is up to 30 million of neutrinos from the big bang, to say nothing of the particles that came from the sun or from reactors and accelerators on Earth. Read more »