Space Explorer

Supermassive black holes might be simpler than we thought By  Monisha Ravisetti Physicists from institutions including the Massachusetts Institute of Technology and the European Southern Observatory found that a supermassive black hole awakened to devour a nearby star much like its more ordinary counterparts would, indicating that, despite their vast nature, the objects are rather predictable in at least one.  regard.  According to a paper published May 17 in The Astrophysical Journal, the supermassive black hole - 50 million times the mass of the sun - was activated by a star that drifted into its vicinity.  While it devoured the gaseous object, scientists watched over two years as the giant black hole mimicked the behavior of smaller ones in an event termed AT2018fyk.  "What it is telling us is, black holes are simple," study author Dheeraj Pasham, a research scientist at MIT's Kavli Institute for Astrophysics and Space Research, told The Academi

NASA's Curiosity rover on Mars spotted scaling the 'Mont Mercou' from Space Just a few days ago, we got our first pictures from China's Tianwen-1 Mars probe. We now have images of NASA's Curiosity rover on Mars spotted scaling the 'Mont Mercou' from Space.The Curiosity rover first landed on Mars on the 6th of August, 2012 and has been active for about eight years and 289 days. Curiosity measures up to a size of a full-size sedan on earth. The Curiosity rover designed to carry out a two-year mission is still active as of 22nd of May, 2021.    The Curiosity Rover was designed, to explore the Gale crater on Mars and relay the findings to NASA. The knowledge gained from this project would then helped NASA with building the current generation of rovers Perseverance and the copter Ingenuity that are currently on an active mission on Mars since 2020.  In August 2012, the Curiosity rover landed inside the Gale Crater that is 96 miles wide. Th

       अरूपाचे रूप... (आनंद घैसास)          कृष्णविवराचं छायाचित्र घेण्यात विज्ञान-तंत्रज्ञानाच्या साह्यानं शास्त्रज्ञांना नुकतंच यश मिळालं आहे. प्रत्यक्षात डोळ्यांना न दिसणाऱ्या कृष्णविवराचं हे छायाचित्र आहे. जगभरातल्या खगोलशास्त्रात संशोधन करणाऱ्या निरनिराळ्या संस्थांमधल्या सुमारे दोनशे शास्त्रज्ञांनी केलेल्या प्रयत्नांचं हे फलित आहे. हे छायाचित्र नक्की काय सांगतं, त्याचं महत्त्व काय, ते नक्की कसं काढलं गेलं, त्यात कोणत्या अडचणी आल्या, कोणतं तंत्रज्ञान वापरलं गेलं आदी सगळ्या गोष्टींबाबत ऊहापोह. "जेन देखे रवी, ते देखे कवी' असं म्हटलं जातं. म्हणजे जे कधी कोणाला दिसणार नाही, अस्तित्त्वातच नाही, ते फक्त कवीच स्वत:च्या कल्पनेने पाहू शकतात... पण आता हे वचन बदलावं लागणार असं दिसतं. कारण जे प्रत्यक्षात दिसत नाही अशा कृष्णविवराचं छायाचित्र घेण्यात विज्ञान-तंत्रज्ञानाच्या साह्यानं शास्त्रज्ञांना नुकतंच यश मिळालं आहे. हे काम कोण्या एकट्याचं नाही, तर जगभरातल्या खगोलशास्त्रात संशोधन करणाऱ्या निरनिराळ्या संस्थांमधल्या सुमारे दोनशे शास्त्रज्ञांनी केलेल्या प्रयत्नांच

  May 17, 2021 Supermassive black holes devour gas just like their petite counterparts ( Nanowerk News ) On Sept. 9, 2018, astronomers spotted a flash from a galaxy 860 million light years away. The source was a supermassive black hole about 50 million times the mass of the sun. Normally quiet, the gravitational giant suddenly awoke to devour a passing star in a rare instance known as a tidal disruption event. As the stellar debris fell toward the black hole, it released an enormous amount of energy in the form of light. Researchers at MIT, the European Southern Observatory, and elsewhere used multiple telescopes to keep watch on the event, labeled AT2018fyk. To their surprise, they observed that as the supermassive black hole consumed the star, it exhibited properties that were similar to that of much smaller, stellar-mass black holes. The results, published today in the  Astrophysical Journal  ( "Rapid accretion state transitions following the tidal disruption event