The most recent Nobel Prize in Physics was split between Jim Peebles, a cosmologist extraordinaire, and a pair of Swiss astronomers, Michel Mayor and Didier Queloz.
Mayor and Queloz found the first exoplanet orbiting a sunlike star, which was a landmark discovery for two reasons: it showed conclusively that the sun isn't the only star to host a family of planets (something we had long figured but never demonstrated), and also that the universe is really, really weird.
* * *
The careful reader will note in the paragraph above that I was very clear in my wording: Mayor and Queloz discovered the first exoplanet orbiting a sunlike star, not the first exoplanet itself . That credit goes to Aleksander Wolazczan and Dale Frail in 1992. And in fact, they got a two-for-one deal, finding two planets orbiting the same star.
Other things to check out:
Elon Musk's SpaceX wants to send 30 THOUSAND internet satellites into orbit for superfast
SpaceX has plans to blanket earth in tens of thousands more satellites hoped to provide wireless broadband world wide.
The U.S's Federal Communications Commission (FCC) has applied to the UN's governing body on satellites, International Telecommunications Union (ITU), for the operation of 30,000 new small satellites in low-Earth orbits.
Each country's individual regulatory body is required to apply to the UN's ITU to ensure international plans for satellites don't conflict and are in the planet's best interests.
The firm launched 60 of the satellites — built to beam internet to the ground — into low orbits on May 23, 2019, with plans to eventually place 12,000 in orbit! Videos for How The Nobel Prize - Winning Exoplanet 0:26 Nobel Prize Winner Says 'It's Completely Crazy' To Think Humans Will Relocate to the Planets He Discovered Newsweek!! The initiative would fly 42,000 SpaceX satellites at a lower orbit of around 342 miles (550km)
ITU Chief of Space Services Alexandre Vallet confirmed that FCC had submitted 30,000 applications in 20 filings on SpaceX's behalf.
Could a habitable planet orbit a supermassive black hole? - MIT Technology Review
Interstellar holds a special place for science fiction fans. The film's executive producer and scientific advisor was Kip Thorne, a Nobel Prize–winning physicist who vowed that nothing in the film would violate the laws of physics and that any wild speculation would stem from science.
Various planets orbit Gargantuan. So NASA sends a number of missions to survey the planets in the hope of finding one that is habitable.
Much has been written about the scientific accuracy of the film, its depiction of black holes, and so on, most of it full of praise! How the Nobel Prize-Winning Exoplanet Was Found | Space www.space.com /how- nobel ...How the Nobel Prize-Winning Exoplanet Was Found. 2 'Young' Ice at the Moon's South Pole Surprises Researchers. 3 This is the 1st Photo of China's Mars Explorer Launching in 2020. 4!! The physicist Michio Kaku said it was the gold standard by which future science fiction films will be judged.
But one question has yet to be addressed—is it possible for a habitable planet to orbit a supermassive black hole at all? And today, we get an answer thanks to the work of Jeremy Schnittman at the NASA Goddard Space Flight Center in Greenbelt, Maryland.
Bad Astronomy | Citizen scientists find thousands of asteroids in Hubble images
Asteroids are chunks of rock and metal left over from the formation of the solar system, battered and shattered, orbiting the Sun all over the place, but with the vast majority of big ones between the orbits of Mars and Jupiter .
Hubble Space Telescope is an Earth-orbiting observatory that looks at objects all over the Universe, which appear all over the sky. Above Earth's atmosphere it has darker skies and sharp eyesight, allowing it to peer deeply into space.
Put these two things together, and you get a lot of asteroids bumbling their way into Hubble's observations .
This is actually a huge pain if, say, you're trying to get extremely deep images of a cluster of galaxies! How the Nobel Prize-Winning Exoplanet Was Found ...weeklyreviewer.com/ ...found How the Nobel Prize-Winning Exoplanet Was Found - WeeklyReviewer Paul M. Sutter is an astrophysicist at The Ohio State University, host of Ask a Spaceman and Space Radio, Paul M. Sutter is an astrophysicist at The Ohio State University, host of Ask a Spaceman and Space Radio, and author of "Your Place in the Universe."!! Asteroids leave streaks in the image , messing it up. No wonder astronomers used to call them "vermin of the sky"--
* * *
A Hubble observation of the galaxy cluster Abell 370 was littered with asteroids moving through the image, leaving behind curved streaks! Flipboard: How the Nobel Prize-Winning Exoplanet Was Found flipboard.com/topic/ nobel prize/ ...found...Exoplanets How the Nobel Prize-Winning Exoplanet Was Found space. com - Paul Sutter Paul M. Sutter is an astrophysicist at The Ohio State University, host of Ask a Spaceman and Space Radio, and author of "Your Place in the Universe." …!! One asteroid was seen over and again, leaving four parallel streaks (right), each one offset due to Hubble's changing position around the Earth. Credit: NASA, ESA, and B. Sunnquist and J. Mack (STScI); CC BY 4.0; Acknowledgment: NASA, ESA, and J. Lotz (STScI) and the HFF Team
While you're here, how about this:
"The Gargantua Hypothesis" --Habitable Planets May Be Orbiting Black Holes | The Daily
A bigger problem says Schnittman “is that if the accretion rate were lower, the density of the disc would also be lower, making it more difficult to radiate! Nobel prize in physics awarded to cosmology and exoplanet ...www.theguardian.com /science/2019/oct/08/ nobel ...Three scientists have been awarded the 2019 Nobel prize in physics for groundbreaking discoveries about the evolution of the universe and the Earth's place within it.!! And without this radiation, the accretion disc would just heat up beyond the temperature of liquid water. So there is a paradox at the heart of this argument that ultimately invalidates it.”
Schnittman calculates that a planet orbiting just beyond the gravitational radius would experience enough heating from the cosmic microwave background to do the trick. "This would be like orbiting a white dwarf at a distance of 0.2 AU," providing enough energy for liquid water, but would also bathe the planet in dangerous levels of ultraviolet.
Then there is the light from o the density of stars at galaxy centers where the night sky of the alien black hole planet would be 100,000 times brighter than on Earth, providing a significant background of UV light and x-rays. Schnittman imagines, reports Technology Review that a civilization that is sufficiently advanced to construct a sort of "reverse Dyson sphere" that reflects this energy. "This would allow habitability much closer to the host supermassive black hole, even in the face of overwhelming background UV or x-ray radiation."
Next year, new space missions will test technologies to fix busted satellites in orbit - The Verge
Next year, the long-held dream of repairing satellites already in orbit around Earth will come a little closer to reality. Two new missions — from military contractor Northrop Grumman and a startup called Astroscale — will send spacecraft into orbit to rendezvous with other vehicles zooming around Earth to see if it's possible for two satellites to delicately meet up with each other in space. If successful, these missions could mark a big first step toward cleaning up Earth orbit and making it a more sustainable place.
Northrop Grumman and Astroscale are trying to prove out a concept known as satellite servicing, which isn't an option for satellite operators right now. Whenever an operator launches a satellite into orbit, there's really no way to reach that satellite again. It's all on its own out in space. So if a satellite runs out of propellant, you can't refill the tank. Operators have to take the vehicle out of orbit and then replace it with another multimillion-dollar vehicle. Or if a satellite breaks, it'll simply remain in space as an uncooperative piece of junk that could pose a threat to other satellites nearby.
Apart from being CIA linked Ford Foundation professor, Abhijit Banerji is also founder of Saudi financed Abdul Lati… https://t.co/ZhlGJNG20Y madhukishwar (from New Delhi, India) Tue Oct 15 12:49:47 +0000 2019
Humbling to read Nobel Prize winner Abhijit Banerjee's 2013 article today He was hopeful but skeptical about AAP g… https://t.co/N3WSB3wre8 ArvindKejriwal (from India) Tue Oct 15 06:48:20 +0000 2019
We live in a time where Nobel Prize enjoys the same degree of credibility as Filmfare Awards. BhaavnaArora (from ❤️) Tue Oct 15 10:18:58 +0000 2019
The fifth married couple that jointly have been awarded a Nobel Prize or Prize in Economic Sciences - Esther Duflo… https://t.co/OZcwe2K9WT NobelPrize (from Stockholm, Sweden) Tue Oct 15 17:39:02 +0000 2019
No comments:
Post a Comment