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science and technology

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 space science.     isro____=> orbit- an elangated path  types of orbits      Geostationary orbit (GEO)- Satellites in geostationary orbit (GEO) circle Earth above the equator from west to east following Earth’s rotation Low Earth orbit (LEO) Medium Earth orbit (MEO) Polar orbit and Sun-synchronous orbit (SSO) Transfer orbits and geostationary transfer orbit (GTO) Lagrange points (L-points)
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NASA'S SOFIA(Stratospheric Observatory for Infrared Astronomy)

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  Stratospheric Observatory for Infrared Astronomy -SOFIA he Flying Observatory  SOFIA soars over the snow-covered Sierra Nevada mountains with its telescope door open during a test flight. SOFIA is a modified Boeing 747SP aircraft. Credits: NASA/Jim Ross SOFIA, t he Stratospheric Observatory for Infrared Astronomy, is a Boeing 747SP aircraft modified to carry a 2.7-meter (106-inch) reflecting telescope (with an effective diameter of 2.5 meters or 100 inches). Flying into the stratosphere at 38,000-45,000 feet puts SOFIA above 99 percent of Earth’s infrared-blocking atmosphere, allowing astronomers to study the solar system and beyond in ways that are not possible with ground-based telescope s. SOFIA is made possible through a partnership between NASA and the German Space Agency at DLR. The observatory’s mobility allows researchers to observe from almost anywhere in the world, and enables studies of transient events that often take place over oceans where there are no teles...
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1stpriority

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  Mission LiFE: World leaders endorse PM Modi-led initiative against climate change Mission LiFE is an initiative to deal with Climate change through a three-pronged strategy to create demand, supply and policy for changing the collective approach towards sustainability Logo of Mission LiFE. Screengrab: Youtube New Delhi:  World leaders, including from France, the United Kingdom and the Maldives, were among those who congratulated Prime Minister Narendra Modi for the launch of Mission LiFE (Lifestyle for the Environment) aimed at facilitating the shift towards sustainability on Thursday. Starting his video message addressing the Prime Minister as “Dear Narendra,” French President Emmanual Macron said that he looks forward to working with the Indian presidency of G20 next year. “Dear Prime Minister, dear Narendra, dear colleagues, dear friends, namaste. I wish I could be you in Kevadia at this very special moment. And at a time when our world is subject to increasing geopolitic...
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