Alien life may not exist due to a lack of this chemical element

April 5, 2018 by  
Filed under Green

Comments Off on Alien life may not exist due to a lack of this chemical element

Holding out hope for alien life somewhere out there? According to a recent study from Cardiff University , you may have to wait a long, long time – if phosphorus isn’t present, it could be difficult for that life to exist. Phosphorus is one of the six elements Earth’s organisms depend on, and researchers Jane Greaves and Phil Cigan found it in short supply near the Crab Nebula supernova remnant, around 6,500 light years away. In light of these new findings, we may be alone in the universe after all. Greaves said phosphorus “is crucial to the compound adenosine triphosphate (ATP), which cells use to store and transfer energy.” Astronomers have begun paying attention to phosphorus’ cosmic origins, and have discovered it’s created in supernovae. Related: Atacama ‘alien’ skeleton’s identity revealed by genetic testing Cigan and Greaves observed infrared light from phosphorus in the Crab Nebula using the William Herschel Telescope. They compared two “stellar explosions based on how they each ejected phosphorus into the atmosphere,” thanks to other scientists’ research on phosphorus in Cassiopeia A. Preliminary results hint “material blown out into space could vary dramatically in chemical composition.” Greaves said, “The route to carrying phosphorus into new-born planets looks rather precarious…If phosphorus is sourced from supernovae, and then travels across space in meteoritic rocks, it’s possible that a young planet could find itself lacking in reactive phosphorus because of where it was born. That is, it started off near the wrong kind of supernova. In that case, life might really struggle to get started out of phosphorous-poor chemistry , on another world otherwise similar to our own.” At the European Week of Astronomy and Space, Cigan and Greaves presented the preliminary results. They hope to continue to work and discover whether other supernova remnants lack phosphorus too, to discover if the element is rarer than scientists once thought. + Cardiff University Via The Telegraph Images via Depositphotos and Wikimedia Commons

View original post here:
Alien life may not exist due to a lack of this chemical element

Astronomers are baffled by a newly-discovered galaxy that lacks dark matter

March 29, 2018 by  
Filed under Green

Comments Off on Astronomers are baffled by a newly-discovered galaxy that lacks dark matter

For the first time ever, scientists have identified a galaxy , NGC1052-DF2, that seems to lack the presence of dark matter.  For decades, scientists have believed that dark matter is a major aspect of any galaxy, which makes this discovery completely baffling. In an odd way, the new galaxy’s lack of dark matter may serve as evidence for the existence of it by demonstrating that there is much astronomers do not understand about such vast low-density galaxies. Although scientists have yet to directly observe dark matter, they believe it is out there due to the unusual motion of galaxies, which move as if under a greater gravitational force than that from the presence of regular matter. “These ultra-diffuse galaxies have a huge variety of properties,” study lead author Pieter van Dokkum told Gizmodo . “Some have a lot of dark matter , and some have no dark matter. There’s such an enormous range.” These observations have led scientists to believe that the universe may contain six times as much dark matter as ordinary matter . In a new study published in Nature , astronomers documented their observation that NGC1052-DF2 did not seem to rotate at all, indicating a lack of dark matter. “We could only derive an upper bound to the measured motion because it’s moving so slowly that our instrument couldn’t detect it,” said van Dokkum. Related: Scientists capture first ever image of dark matter web that connects galaxies The team also recently discovered a Dragonfly 44 with a similar structure to NGC1052-DF2, though its rotation suggests that the galaxy is composed of more than 99 percent dark matter. These observations were made possible by the Dragonfly Telephoto Array, a powerful telescope that shines a light on the universe’s secrets. This is exactly the sort of thing the Dragonfly instrument excels at discovering,” astrophysicist Sarah Tuttle told Gizmodo , “and confirming a low-mass galaxy without dark matter is an important step in understanding both galaxy formation and evolution, as well as cosmology.” Via Gizmodo Images via  Pieter van Dokkum and PBS

Originally posted here:
Astronomers are baffled by a newly-discovered galaxy that lacks dark matter

This result is of cosmic significance, says scientist of new form of matter

December 11, 2017 by  
Filed under Green

Comments Off on This result is of cosmic significance, says scientist of new form of matter

Physicists at the University of Illinois have announced they have discovered a new form of matter known as excitonium. Although theorized more than half a century ago, excitonium was only recently confirmed in experiments by the research team, which also included scientists from University of California at Berkeley, and University of Amsterdam. Excitonium is composed of a type of boson, a composite particle whose unique qualities enable the new form of matter to serve as a superconductor, superfluid, or an insulating electronic crystal. In this regard, it could be used to bolster existing technologies, aid the development of new ones, or help to bring clarity to some of the most vexing mysteries of quantum mechanics. Excitonium is composed of excitons, a combination of electrons and the empty “holes” left by empty electron states. When in an excited state, electrons on the edge of an energy level in an atom can jump to a different energy level , leaving a “hole” behind. This hole then acts with a positive force, trying to pull the negatively charged electron back to its original space. While scientists had envisioned such a state of matter , they were only recently able to identify it through a novel technique. Their work was documented in a study published in the journal Science . Related: Scientists locate half of the universe’s missing ordinary matter Although further study is needed, the implications of excitonium’s demonstrated existence is substantial. “This result is of cosmic significance,” said study co-author and University of Illinois Professor Peter Abbamonte in a press release. “Ever since the term ‘excitonium’ was coined in the 1960s by Harvard theoretical physicist Bert Halperin, physicists have sought to demonstrate its existence… Since the 1970s, many experimentalists have published evidence of the existence of excitonium, but their findings weren’t definitive proof and could equally have been explained by a conventional structural phase transition.” Via Futurism Images via  Peter Abbamonte/U. of I. Department of Physics and Frederick Seitz Materials Research Laboratory and  L. Brian Stauffer/University of Illinois at Urbana-Champaign

Here is the original:
This result is of cosmic significance, says scientist of new form of matter

Scientists find a massive black hole swirling in the Milky Way

September 6, 2017 by  
Filed under Green

Comments Off on Scientists find a massive black hole swirling in the Milky Way

Scientists from Keio University in Japan have unveiled the best evidence we have for an intermediate-mass black hole – and it’s right in our Milky Way . Intermediate-mass black holes have eluded astronomers , who have found hints of both star-sized black holes and supermassive black holes . But the discovery of the mid-sized black hole could help scientists understand why supermassive black holes grow so immense. The formation of supermassive black holes has been a mystery for astronomers, but this new study might provide an explanation for how they form. The researchers from Japan said in their research that mid-sized black holes could merge to form supermassive black holes, but there’s been little evidence for the existence of intermediate-mass black holes – until now. Related: Supermassive black holes offer hint at structure of the universe Last year, a team led by Tomoharu Oka of Keio University reported a strange cloud of molecular gas, dubbed CO-0.40-0.22, in our Milky Way. A team also led by Oka then scrutinized the cloud with instruments such as the Atacama Large Millimeter/submillimeter Array (ALMA) and found a dense clump of gas near the cloud’s center, and a nearby radio wave source, CO-0.40-0.22*, that has similarities to the supermassive black hole Sagittarius A*. According to Oka, the similarity “supports the notion that CO-0.40-0.22* is an intermediate-mass black hole.” Scientists have expressed excitement about the discovery; Swiss Federal Institute of Technology astronomer Kevin Schawinski told Science Magazine, “It’s a very careful paper and they have gorgeous data. It’s the most promising evidence so far.” If CO-0.40-0.22* is verified as a black hole, its presence could offer support to the idea our galaxy has gotten bigger by cannibalizing smaller neighboring galaxies. The Japanese scientists think CO-0.40-0.22* could be a former dwarf galaxy core that could have been absorbed into the Milky Way, and could one day be subsumed by Sagittarius A*. The journal Nature Astronomy published the study online this week. Via Keio University , Science Magazine , and ScienceAlert Images via Keio University and NASA/JPL-Caltech

View original post here: 
Scientists find a massive black hole swirling in the Milky Way

Physicists announce the "possible discovery" of a fifth force of nature

August 17, 2016 by  
Filed under Green

Comments Off on Physicists announce the "possible discovery" of a fifth force of nature

Researchers at the University of California, Irvine (UCI) have announced the ‘possible discovery’ of a previously unknown subatomic particle that, if confirmed, could unlock the secrets of dark matter. The discovery would represent a fifth force of nature in the form of a mysterious new particle. Theoretical physicists at UCI now believe the particle, initially theorized by a team of Hungarian researchers last year, could be a newly discovered light particle that adds a fifth component to the four known forces of nature, or even a “grander, more fundamental force” when combined with one of the existing forces. A previous study by experimental nuclear physicists at the Hungarian Academy of Sciences identified an “excess of events” suggesting the existence of a new light particle 30 times heavier than an electron. At the time, there wasn’t enough evidence to explain whether it was a particle capable of transferring force, or simply a matter particle. It wasn’t until the UCI team of theoretical physicists got ahold of the study that discussions about a possible fifth force of nature began to surface. Related: Newly discovered form of spiralized light breaks everything quantum physics says about photons “If true, it’s revolutionary,” said Jonathan Feng, UCI professor of physics & astronomy. “For decades, we’ve known of four fundamental forces: gravitation , electromagnetism, and the strong and weak nuclear forces. If confirmed by further experiments, this discovery of a possible fifth force would completely change our understanding of the universe, with consequences for the unification of forces and dark matter.” Instead of being a dark photon , like the Hungarian experimentalists theorized, UCI physicists suggest the particle may be a “protophobic X boson.” Analysis co-author Timothy Tait, professor of physics & astronomy, said, “There’s no other boson that we’ve observed that has this same characteristic. Sometimes we also just call it the ‘X boson,’ where ‘X’ means unknown.” The findings were recently published in the journal Physical Review Letters. + Physical Review Letters Via Phys.org Images via ESA/Hubble & NASA and MTA-Atomki

See original here:
Physicists announce the "possible discovery" of a fifth force of nature

China completes world’s largest radio telescope to search for alien life

July 4, 2016 by  
Filed under Eco, Green

Comments Off on China completes world’s largest radio telescope to search for alien life

China just completed the world’s largest radio telescope . As big as ” 30 football fields ,” the Five-hundred-meter Aperture Spherical Telescope (FAST) will reportedly hunt for alien life . President Xi Jinping aims to make China a space superpower, and the country is poised to take a leading role in space exploration with the completion of FAST. The massive telescope took five years to build, and the project is managed by China’s space agency – the National Astronomical Observatory (NAOC) of the Chinese Academy of Sciences. Deputy head of the agency Zheng Xiaonian said , “The project has the potential to search for more strange objects to better understand the origin of the universe and boost the global hunt for extraterrestrial life.” FAST will search for aliens by detecting amino acids on far away planets. Related: China is displacing 9,000 residents so a huge telescope can look for aliens At 500 meters wide, FAST beats out the previous record holder in Puerto Rico, the 300-meter-wide Arecibo Observatory. FAST is comprised of 4,450 panels, according to The Telegraph . The $180-million telescope displaced 9,000 people . Those who lived within three miles of FAST’s location in the poverty-stricken Guizhou province had to leave because the agency wanted to make sure nothing interfered with the telescope’s operations. Chinese officials said each person would be provided with roughly $1,800 to relocate. Scientists will begin testing the telescope now, and FAST will be fully operational in September. China also hopes to construct a space station and send a person up to the moon by 2036 . Reuters notes that while China has said their goals are peaceful in nature, the U.S. Defense Department is laying plans to ensure China won’t use their space technology in a “crisis.” National Astronomical Observatory Via Reuters Images via the National Astronomical Observation, Chinese Academy of Sciences

Read the original here:
China completes world’s largest radio telescope to search for alien life

Paris’ first floating hotel opens on the River Seine

July 4, 2016 by  
Filed under Green

Comments Off on Paris’ first floating hotel opens on the River Seine

OFF is moored at the foot of Austerlitz station in an up-and-coming location for modern design. The blissful floating inn is located within walking distance of the Notre Dame cathedral and Hôtel de Ville. The hotel has 54 rooms and 4 suites, costing between €160-450 ($171-483 USD) per night. Related: Aqua Mekong is a floating hotel that travels the rivers of Vietnam The lodgings are decked out with bright colors that mimic the sun’s reflection off the Parisian waters. Guests can enjoy sunbathing at the plunge pool or dining at the bar with a panoramic view of the river. OFF is perfect for recuperating after a day of city exploration or a day of lounging riverside in modern luxury. + OFF Via urdesign Images via OFF

Here is the original: 
Paris’ first floating hotel opens on the River Seine

Bill Nye launches crowdfunding campaign to back Carl Sagan’s dream LightSail

May 15, 2015 by  
Filed under Eco, Green

Comments Off on Bill Nye launches crowdfunding campaign to back Carl Sagan’s dream LightSail

You can become a backer of one of the coolest space programs in this universe. Bill Nye—yep, The Science Guy —has launched a Kickstarter campaign  to fuel The Planetary Society , which will help make Carl Sagan’s space dreams come true. We recently reported on the project to build Sagan’s solar-powered lightsail spaceship , and the launch of this crowdfunding effort means that average, ordinary science-loving citizens can contribute to the next great wave of space exploration. Nye is looking to raise at least $200,000 and a maximum of $1 million to help fund the LightSail , which we imagine is a pretty expensive venture. Contributor levels start at just $1, so it’s time to skip that second cuppa and fork over some spare change—for science. Larger donations will get you honors like autographs of the engineering team, a LightSail team flight jacket, and sending your name into space. How cool is that? + Bill Nye’s Kickstarter campaign Via Mashable  Image via The Planetary Society Permalink | Add to del.icio.us | digg Post tags: bill nye , carl sagan , citizen science , kickstarter campaigns , lightsail , solar powered lightsail , solar-powered spacecraft , the planetary society

Excerpt from:
Bill Nye launches crowdfunding campaign to back Carl Sagan’s dream LightSail

Astronomers capture 13-billion-year-old galaxy on camera

May 7, 2015 by  
Filed under Green

Comments Off on Astronomers capture 13-billion-year-old galaxy on camera

Scientists recently went where no one has gone before, at least in a metaphorical sense, when they discovered what they believe is the farthest galaxy from our own, and also the oldest known galaxy ever found. An international team of astronomers led by Yale and the University of California SC recently captured a photograph of an “exceptionally luminous galaxy” located roughly 13 billion years in the past , dating back to when the universe was only about five percent of its present age. They made the discovery using the MOSFIRE instrument at the W.M. Keck Observatory telescope, a powerful device about 10 meters across. Via Phys.org Image via NASA, ESA, P. Oesch and I. Momcheva (Yale University), and the 3D-HST and HUDF09/XDF teams Permalink | Add to del.icio.us | digg Post tags: 13 billion year old galaxy , nasa finds oldest galaxy , oldest galaxy every found , scientists uncover oldest galaxy

See the rest here: 
Astronomers capture 13-billion-year-old galaxy on camera

NASA says finding life on other planets almost certain within next two decades

April 10, 2015 by  
Filed under Green

Comments Off on NASA says finding life on other planets almost certain within next two decades

NASA recently gave a definitive answer to one of the biggest collective questions humanity has ever asked: are Earth’s inhabitants alone in the universe? NASA says the answer is “almost certainly no,” according to Phys.org . And while we could meet our alien neighbors within the next two decades, they may not take the form of what you’re used to seeing in science fiction. Read the rest of NASA says finding life on other planets almost certain within next two decades Permalink | Add to del.icio.us | digg Post tags: alien life , alien life likely within 10-20 years , alien life on Mars , are we alone in the universe , ET life , finding life on other planets , ganymede underwater ocean life , life in space , life on mars , nasa says life on other planets almost certain , space exploration

See the original post here:
NASA says finding life on other planets almost certain within next two decades

Next Page »

Bad Behavior has blocked 2546 access attempts in the last 7 days.