America began its mission to find planets like Earth

The telescope carries the mission of searching for life-capable planets that have just been launched into space at an American military base.

The Kepler telescope was launched from Canaveral nose.Photo: Reuters.

The US Aerospace Agency (NASA) uses Delta II boosters to bring the Kepler telescope into space from Cape Canaveral Air Base, Florida, on March 7. 'This is a historical mission, not merely a scientific mission. Kepler will help us answer the question: Is Earth the only planet that has life? ' Said Dr. Edward Weiler, a NASA manager.

Kepler is designed to search for planets of the same size or structure. In addition, it also looks for stars like the sun. Since 1995, astronomers have discovered that about 300 extrasolar planets are revolving around their own stars, but most of them are large planets formed from gas dust, making it difficult to nurture the living. Many scientists claim that if the telescoping fabrication technology develops, we can detect thousands of other planets orbiting the stars separately.

Kepler is the largest telescope that humans put into space. It will fly around the sun to search for rocky planets orbiting a star. The distance between them is not too close, because everything on the planet will be burned by the heat from the star. But it is not too far because then the ice will cover the planet's surface, making life impossible.

'We want to find planets that are not too hot and not too cold because life only appears on moderate temperature planets, where water occupies most of the surface area,' said William Borucki, an expert at NASA, said. He estimated that the Kepler telescope spacecraft could detect about 50 such planets.

'If Kepler finds that planet, then we can confirm that life exists in the galaxy. In the case that it detects a few planets of moderate temperature, we can conclude that planets capable of nourishing life as Earth are rare , 'he said.

During the three and a half years of flying around the sun, Kepler will monitor more than 100,000 stars.Photo: Reuters.

In some star systems, planets move in front of stars if we look from the globe. That's why Kepler will fly around the sun (not the earth) because it ensures that our planet does not block the telescope's view. Kepler has the ability to detect the faint light of distant stars and planets that pass in front of them. With an extremely wide angle of view, this telescope will monitor the brightness of more than 100,000 stars in three and a half years.

If Kepler finds a planet the size of a globe and revolves around a star as big as the sun, scientists will take up to three years to determine if it has life.

"Discovering that the planet is capable of nurturing life is one thing, proving that the planet has resurrection is another matter. Want to determine if life exists on a certain planet, we must continue to bring other telescopes to space. They will search for gases in the atmosphere of the planets, by gases that are necessary for biological activity, " NASA expert William Borucki adds.