Tag: carl sagan

Exploring the Cosmic Phenomena of Supernovas and ISRO’s XPOSAT: A Stellar Journey
12Jan By adminNo Comments
Technology

Exploring the Cosmic Phenomena of Supernovas and ISRO’s XPOSAT: A Stellar Journey

[ad_1] “The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.”- Carl Sagan This profound statement by Carl Sagan beautifully captures the essence of our cosmic connection. The stars, those twinkling specks in the night sky, are not just distant suns but the very vessels where the recipe of life was cooked. Among the most dramatic events in this cosmic saga are supernovas, stellar explosions of unimaginable scale and power, which seed the universe with the building blocks of planets and life. A supernova occurs when a star reaches the end of its life cycle. The star's core, having exhausted its nuclear fuel, can no longer support the outward pressure against the forc...
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Carl Sagan detected life on Earth 30 years ago – here’s how his experiment is helping us search for alien species today
22Oct By adminNo Comments
Technology

Carl Sagan detected life on Earth 30 years ago – here’s how his experiment is helping us search for alien species today

[ad_1]  It's been 30 years since a group of scientists led by Carl Sagan found evidence for life on Earth using data from instruments on board the Nasa Galileo robotic spacecraft. Yes, you read that correctly.Among his many pearls of wisdom, Sagan was famous for saying that science is more than a body of knowledge – it is a way of thinking. In other words, how humans go about the business of discovering new knowledge is at least as important as the knowledge itself. In this vein, the study was an example of a “control experiment” – a critical part of the scientific method. This can involve asking whether a given study or method of analysis is capable of finding evidence for something we already know. We are now on WhatsApp. Click to join.Suppose one were to fly past Earth in an alien sp...
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Carl Sagan’s reflections: Amazing images of Earth captured from Mars – pale blue dot
19Jul By adminNo Comments
Technology

Carl Sagan’s reflections: Amazing images of Earth captured from Mars – pale blue dot

[ad_1] If you look afar from space, our planet and the moon will look like a small bright dot. But, from Mars, you can see a little more than just two bright dots orbiting. Although you might have seen mesmerizing photos of our planet from previous space missions, but these images of the Earth by ESA from Mars, show our planet as just a “pale blue dot”.“On the special occasion of Mars Express's 20th anniversary since launch, we wanted to bring Carl Sagan's reflections back to the present day, in which the worsening climate and ecological crisis make them more valid than ever,” says Jorge Hernandez Bernal of the University of the Basque Country and Sorbonne University, and part of the Mars Express team who initiated this image. The recent image shows the clear concern over the planet's c...
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ET calling from Mars? Just a test, but you can help decode the signal from robotic orbiter
25May By adminNo Comments
Technology

ET calling from Mars? Just a test, but you can help decode the signal from robotic orbiter

[ad_1] After extensive efforts to detect extraterrestrial intelligence, a message from outer space was picked up by three prominent Earth-based radio astronomy observatories today. The signal originated in the vicinity of Mars, and its contents remain hidden at present. However, contrary to initial excitement, the message is not of extraterrestrial origin. It was deliberately transmitted as part of a simulation to mimic an actual communication from aliens. This exercise serves as a dress rehearsal, enabling us to gauge our preparedness and response if we were to encounter a genuine extraterrestrial message. This was organised by the astronomers at the SETI Institute in Mountain View, California.SETI is devoted to searching for signs of extraterrestrial intelligence and it aims to initia...
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