Possible life on Mars: Three and a half billion years ago, water flowed through the valleys of Mars in the same way, as on our earth today. Mars also had a dense atmosphere. Was there any life with microorganisms then?
The US space agency ‘NASA’ and the European space agency ‘Essa’ have decided that they will search for some kind of life on Mars in the past. For this discovery, a ‘NASA’ variance vehicle called ‘Perseverance’ called ‘Rover’ was launched on July 30, 2020. Six and a half months later, he reached Mars on 18 February. Two and a half years from now, in the Pre -Winter season of 2022, a similar rover of ‘Esa’, ‘Exomars’, will depart towards Mars.
Two and a half years later, because the right time to send a vehicle in the direction of Mars is only when it is approaching the Earth, orbiting the Sun. The closest distance between the two comes after every 26 months. Because the Earth and Mars orbit the Sun at different distances in different orbits with different speeds. The Earth revolves around the Sun in a year of 365 days, Whereas it takes 687 days of Earth, that is, about two years of us to make one round of Sun to Mars. In this way, one year of Mars is equal to two years of Earth. Geologist Ernst Hauber and his female colleague Nicole Schmidts, engineer of planetary geology, are two German scientists, the success of the European ‘Exomars’ mission, which is currently the main assignment. Both are scientists of DLR’s German Space Research Center DLR located in the city of Cologne, Germany. Recently, both of them explained what is the importance of ‘Perseverance’ and ‘Exomars’ for the discovery of life on Mars in the past. Both said that so far the four rovers launched on Mars have given a lot of information. Even then, this planet keeps surprising and confusing us again and again.
These two scientists said that the crater named ‘Jejoro’ of Mars made by colliding with a celestial body is one such marvel. On one side of this 49-kilometer diameter crater, a variety of geological works have created a colorful landscape. Three and a half billion years ago this crater must have been filled with water because it has a delta-like river estuary on its western side. That is why for the first time American Rover ‘Perseverance’ has taken such empty characters called capsules with them, In which he will collect samples of pebble-stone and soil. Planetary geology engineer Nicole Schmidts said the biggest advantage of bringing samples collected by the American rover ‘Perseverance’ to Earth is that they can be tested deep and long with better technical facilities of laboratories on earth.
This new American rover has many devices that can detect traces of microorganisms that have ever been on Mars in the past. Does the question arise that how will the ‘Perseverance’ who collects the samples worth sending to Earth send them to Earth? According to Nicole Schmidt, the work will be in two stages. In the first phase, the American rover ‘Perseverance’ will leave its sample capsules where they have been found. At some point later, a rover will pick up and bring these capsules to Earth, which the European Space Agency ‘Essa’ is yet to build. To get this second rover to Mars and take off there, the US space agency ‘NASA’ also has to make a new ‘Mars Ascent Vehicle’ i.e. a ‘Mars landing vehicle’ before 2026. The spacecraft carrying the landing vehicle would land it on Mars, where the rover with the capsules would stand. Taking the capsules from the rover, this vehicle will fly on its own and start orbiting Mars.
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