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Moscow begins preparing bomb shelters The Russian capital has started preparing bomb shelters in schools, hospitals and apartment buildings, according to local media. The Podyom media wrote today on its Telegram account that in Moscow employees of specialized companies indicated that the work is being carried out in the center of the city. "I work for a company that provides electricity, plumbing and sewage services to schools and kindergartens. Of course, no one showed us a written order, but they told us verbally that everything had to be prepared for the bomb shelter to work," said one of the workers quoted by the media. According to this source, the company is preparing sewage drains and installing electricity in four schools in central Moscow. According to the sources of this medium, the state of the inspected facilities is "careless". The Sota publication also said on the 19th that the Moscow Departments of Education and Health had ordered to equip anti-aircraft shelters in their institutions, according to some of its subscribers. On the same day he noted, citing a source in Moscow medical circles, that the city's hospitals are equipping operating theaters in bomb shelters located next to the clinics.

Up to 7.5 billion years have the dust grains that were found inside the Murchison space rock. Research reveals that the material found is older than the Sun and the Earth, and sheds light on one of the great unknowns of astronomy. A meteorite that fell in Australia in 1969 harbors a secret: it contains the oldest material on Earth inside. But how did this material appear? The answer lies in the ancient stars whose particles, when they died, scattered throughout space. These are called presolar grains or star dust, which is incorporated into stars, meteorites, moons and new planets.

The sound waves are not heard in the vacuum of space, but, if electromagnetic waves become sound, it turns out that the universe is a rather noisy place and the Earth also has its voice. Proof of this is the recording of this sound shared by the authors of the study published in the journal Geophysical Research Letters. The experts inquired about the interaction of the magnetic fields of our planet with the solar wind. This sound comes from the so-called magnetosphere, which protects the Earth from the radiation generated by the Sun. During solar storms, the solar wind becomes much stronger. Hence there are hardly any charged particles that can bounce back. This dramatically changes the pattern of these magnetoacoustic waves, the researchers say. The northern lights occur when charged particles collide with our atmosphere by overcoming the magnetic field. Four ships that orbit the Earth are the ones that recorded these oscillations in the Earth's magnetosphere. The mission, organized by the European Space Agency, was named Cluster. The data collected became the sound we can perceive in the recordings. Thanks to them we can learn more about the dynamic interactions between our planet's magnetic field and the solar wind. Scientists point out that these investigations are of great importance, since, during solar storms, magnetic envelopes can be affected, which in turn cause geomagnetic disturbances. In practical terms, these events can alter the operation of navigation and telecommunications systems, and even in some cases can damage electrical equipment.

The Atlantic Alliance has decided to recognize outer space as an operational domain, along with air, land, sea and cyberspace, announced its general secretary, Jens Stoltenberg. "Proud of NATO's historic decision to recognize space as an operational domain, along with air, land, sea and cyberspace. Space is part of our daily lives. It is also essential for deterrence and defense of the Alliance, from navigation to intelligence and missile detection, "Stoltenberg tweeted on Wednesday. The foreign ministers of the NATO member countries made the decision in the first working session of their meeting on November 20 in Brussels (Belgium). On November 19, Stoltenberg said that "space is essential for defense and deterrence lines, for communication and early warning navigation." According to the secretary general, the recognition of space as an operational domain is "a clear sign" that the Alliance continues to "strengthen deterrence and defense in all areas." "Around 2,000 satellites orbit the Earth at the moment and approximately half are from NATO countries," the senior official argued. "NATO has no intention of putting weapons in space, but it must ensure that its missions and operations have adequate support," although its approach "will be defensive and in full compliance with international law," said Jens Stoltenberg.

Work has been done for years on the Curiosity space research mission, led by NASA. It is an astromobile sent to the red planet in order to explore and collect evidence for them to be analyzed. At the Technological Institute of Buenos Aires, San Martín revealed how he will seek the mission of testing if Mars is currently habitable. 2020 is expected to send another astromobile, the Mars 2020, whose main task would be to collect evidence, such as rocks, so that they can be analyzed and thus check whether or not there was life on Mars. "Next year we will launch a mission that will continue the investigation of the Curiosity. It will take samples of the soil and rocks and will bring them back. The interest is to know if there was life on Mars. The conditions existed for that there has been life at the same time that arose here on Earth. We want to know if the phenomenon of life is only earthly or exists elsewhere, "San Martin told the media during a conference at the institute. The Argentine engineer, who has been working at NASA's Jet Propulsion Laboratory for 35 years, assured Télam that there is evidence that Mars was a planet very different from its current form. "It is proven that about 4 billion years ago Mars was a warm and humid planet with habitable conditions for life, so it could have arisen. The next step is to know if it happened or not and to understand what was the climate change that made it disappear its atmosphere, which was like Earth's. " The Martian mission continues and its research seeks to prove the habitability of the red planet. The possibility of colonizing this planet is not ruled out at the moment.