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A spacecraft sent by NASA to search for planets around nearby stars has begun to fulfill its mission. Transit Exoplanet Satellite Survey – TESS waits for a wandering two years, whose main objective will be to explore the planets around the stars. The TESS launched SpaceX on April 18th and the real "hunt".
The Exoplanet (also known as extrasolar) is a planet that has a different star like the Sun. It belongs to another planetary system. The existence of these planets has been planned for a long time, but recently it has been possible to check it. The first discovered exoplanet was the circulating object B1257 + 12 pulsar. It was discovered by the Polish astronomer Alex Wolszczan in 1992.
See The exoplanets – the infinite diversity of the universe
No planet deploying its own light – only reflects that the light of its maternal stars, the exoplanets have only a very dim light, clarity of "his" star. Unlike planets in the solar system, exoplanets can not be observed directly by telescopes. The methods of their discovery are based almost exclusively on the observation of the star of the parents
TESS is primarily an exploratory mission. It is to create a catalog of nearby stars, whose light will disappear regularly, signaling the presence of the planet in orbit. These stars will then be observed with special binoculars, which can determine their weight and other properties, such as the composition of the atmosphere. Later, James Webb, the space telescope, will begin to study these exoplanets
TESS links the Kepler space telescope which has nine years of terrestrial planets. At that time, Kepler found up to 2,650 confirmed exoplanets. Until now, however, Kepler was designed to explore a relatively small part of the sky, TESS maps about 85% of the sky and tries to find exoplanets as close to the Earth as possible. This will be facilitated by further research
The first image taken by the roaming satellite was acquired by NASA on May 22nd. There's only one look at 0.25% of the sky, there's a truly unimaginable number of stars hiding their secrets
See NASA Introduces the "Earth Twin", the Kepler-452b exoplanet
Agent for Public Affairs NASA, Marie Lewis, said that TESS will use advanced camera systems for two years. The sky is divided into 26 different parts. Each section will review about a month and will monitor more than 200,000 stars together. In observation, he will try to find changes in brightness that could signal the planet. It is expected that during the TESS mission will show up to 1600 exoplanets
In addition to new knowledge and a more detailed map of the universe, this two-year mission can also provide guidance on where to find the life or where life could discover us could be interesting
Source Gizmodo
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