Scientists just detected helium in an exoplanet’s atmosphere for the first time

May 3, 2018 by  
Filed under Green

Comments Off on Scientists just detected helium in an exoplanet’s atmosphere for the first time

For the first time, researchers have identified the presence of helium within the atmosphere of a planet beyond our solar system, offering yet another glimpse into the weather patterns of exoplanets. This discovery is particularly notable for the methods used to detect helium, demonstrating that it is possible to identify the atmospheric composition of some exoplanets with current technology. Although scientists have long expected to find helium on large exoplanets, its presence on planet WASP-107b has now been confirmed, thanks to a technique that involves analysis of the light spectrum of the upper levels of the planet’s atmosphere. “We hope to use this technique with the upcoming James Webb Space Telescope,” said lead researcher Jessica Spake in a statement. “For example, to learn what kind of planets have large envelopes of hydrogen and helium, and how long planets can hold on to their atmospheres . By measuring infrared light, we can see further out into space than if we were using ultraviolet light .” Related: The Earth-like planets orbiting this star could hold 250 times more water than Earth An ultra-low-density planet, WASP-107b is roughly equivalent to the size of Jupiter but only has 12 percent of that planet’s mass. WASP-107, the star around which WASP-107b orbits every six days, is so powerful that it is gradually dissolving the exoplanet’s atmosphere. As a result, WASP-107b leaves a comet-like trail of helium in its wake. “The helium we detected extends far out to space as a tenuous cloud surrounding the planet,” explained study co-author Tom Evans in a statement . “If smaller, Earth-sized planets have similar helium clouds, this new technique offers an exciting means to study their upper atmospheres in the very near future.” Via Space.com and Nature Images via Nature / EngineHouseVFX and ESA/Hubble, NASA, M. Kornmesser

Read the original here:
Scientists just detected helium in an exoplanet’s atmosphere for the first time

This prefab movable house can be assembled anywhere

May 3, 2018 by  
Filed under Green

Comments Off on This prefab movable house can be assembled anywhere

On the go? Not a problem. This movable, prefab house from Swiss studio Rahbaran Hürzeler Architekten can be built and installed almost anywhere. The architects developed the project as an experiment in designing a space that can be assembled and transported easily and quickly. Every aspect of the project is designed around mobility, including the structure and floor plans. The house can stand alone or can connect to another building. Four timber cores are the only load-bearing structures that support the concrete roof. Related: zeroHouse offers luxurious living in a fully self-sustaining modular home The structure has four main areas organized around a circular central space, which establishes a flexibility that allows multiple occupants to adapt the design to their own needs and preferences. This also allows users to adjust the organization of the house to a specific site. The floor, made from concrete, can be hauled by truck. Four prefabricated timber cores stand on the floor and create five functional spaces — a kitchen, living room and two bedrooms. The first prototype of the movable home is slated for construction in Basel , Switzerland. It will feature a system of sensors that that allow the occupants to monitor the home’s performance over the course of one year. The architects plan to use this data to further develop and enhance the design. + Rahbaran Hürzeler Architekten Via Archinect

Go here to see the original:
This prefab movable house can be assembled anywhere

Pakistan just broke the world record for the hottest April day ever

May 3, 2018 by  
Filed under Business, Eco, Green

Comments Off on Pakistan just broke the world record for the hottest April day ever

Pakistan hit 122.3 degrees Fahrenheit (50.2 C) this week, marking the highest temperature recorded for the month of April – ever. The city of Nawabshah in Sindh province reported the stunning temperature on Monday, and it was confirmed by the Pakistan Meteorological Department . While Pakistan is getting the worst of it, a huge portion of the planet, from South Asia to Europe and parts of the US, is being hit by a heat wave that threatens to become the new normal. ???Exceptionnel 50.2°C à Nawabshah au #Pakistan ce lundi 30/04/2018, #RECORD national de chaleur pour un mois d'avril ! ???(précédent : 50°C à Larkana le 19/04/2017)*** aussi un nouveau record mensuel pour tout le continent asiatique ! *** pic.twitter.com/GTCOJuDT9Q — Etienne Kapikian (@EKMeteo) April 30, 2018 As you’d expect, the heat was incredibly hard on those living in the area, causing people to pass out, heatstroke reports to increase, and business to shutter. Nawabshah experienced another record just last month, when temperatures climbed to 113.9 F (45.5 C). Areas in India and Eastern Russia have been setting their own records this month as a heat wave moves across the area before monsoon season sets in. Unfortunately, it seems likely that these numbers will become more common. A study completed last year showed that temperatures in India had risen 0.5 C over the past 50 years, with no change in sight. Related: Ocean heatwaves have risen by more than 50% since 1925 In 2011, Santa Rosa, Mexico was said to have hit 123.8 F (51 C), but that number was never confirmed. Pakistan’s measurement is considered to be reliably accurate. However, in order for the figure to qualify as a world record, the World Meteorological Organization will need to verify the number. Just in case you were wondering, Pakistan’s previous April heat record was set last year when temperatures climbed to 122 F (50 C). Via Earther and Al Jazeera Image via Deposit Photos

See the rest here:
Pakistan just broke the world record for the hottest April day ever

Stephen Hawking reveals what existed before the Big Bang

March 7, 2018 by  
Filed under Eco, Green

Comments Off on Stephen Hawking reveals what existed before the Big Bang

In an interview with astrophysicist Neil deGrasse Tyson , iconic physicist Stephen Hawking reveals what he believes existed prior to the Big Bang. “Nothing was around,” said Hawking, who fortunately elaborated on this point. “The Euclidean space-time is a closed surface without end, like the surface of the Earth,” said Hawking, referring to the four-dimensional conceptual model that incorporates the three dimensions of space with time. “One can regard imaginary and real time as beginning at the South Pole, which is a smooth point of space-time where the normal laws of physics hold. There is nothing south of the South Pole so there was nothing around before the Big Bang.” At least, there was nothing around that humans can currently experience or conceptualize. Since there is no way to measure time prior to the Big Bang , Hawking concludes that simply nothing existed prior to the Big Bang. In his interview with deGrasse Tyson, Hawking also spoke about the questions he would ask of Sir Isaac Newton, were he able to do so by some twist in space-time. “Is the solar system stable? And what happens to a star that cannot support itself against its own gravity ?” Hawking wondered. The stability of the solar system is of particular interest to residents of Earth. Related: Stephen Hawking: Humans must leave Earth within 100 years to survive Hawking has offered some pessimistic assessments of the near-future of our planet. He predicts that the Earth will become a ball of fire within the next 600 years while also warning humanity that we have less than a century to leave Earth before it becomes uninhabitable. He also warned about the existential dangers of artificial intelligence . “Computers can, in theory, emulate human intelligence, and exceed it,” he said in 2017 . “Success in creating effective AI, could be the biggest event in the history of our civilization. Or the worst. We just don’t know. So we cannot know if we will be infinitely helped by AI, or ignored by it and side-lined, or conceivably destroyed by it.” Via USA Today Images via Star Talk and NASA

See original here: 
Stephen Hawking reveals what existed before the Big Bang

Planet parade to dazzle stargazers this week here’s what you need to know

March 7, 2018 by  
Filed under Eco, Green

Comments Off on Planet parade to dazzle stargazers this week here’s what you need to know

Mercury , Venus , Mars , Jupiter , and Saturn : those are the planets stargazers in the Northern Hemisphere will be able to glimpse this week during what The Weather Channel called a planet parade. While you won’t be able to spot them all at the same time, you could snag views of Mercury and Venus after sunset and Mars, Jupiter, and Saturn before dawn — read on to find out how. March is an excellent month for “catching all five bright planets,” according to EarthSky . They define bright planet as one in our solar system that can be viewed without an optical aid “and that’s been watched since time immemorial.” Whoa! Cool. In March 2018, you can see all 5 bright planets. https://t.co/kwFqw9Gzhk Look west after sunset for Mercury and Venus. Mars, Jupiter and Saturn are up before dawn. #Mercury #Venus #Jupiter #Mars #Saturn #visibleplanets pic.twitter.com/oyss7rrvb2 — EarthSky (@earthskyscience) March 2, 2018 Related: Google maps the solar system for armchair space travelers Catch Mars, Jupiter, and Saturn before dawn; according to EarthSky, Jupiter should rise around one hour after midnight, and Mars and Saturn appear closer to dawn. The planets have slightly varying rising times depending on where you are on Earth ; EarthSky recommends a few sky almanacs accessible here . The Weather Channel said people in the Rocky Mountains and areas in the South will have the best opportunity for viewing on Wednesday morning. On Thursday morning, the South and areas in the West will be the best locations. If you’re in the Northeast, you might be out of luck; Winter Storm Quinn could obstruct the view, according to meteorologist Chris Dolce. See all 5 bright planets in March https://t.co/Tol9xs2C3L You can't see them simultaneously. But, especially from the Northern Hemisphere, March 2018 is a great month for catching all 5 bright planets either after sunset, or before dawn. pic.twitter.com/tE7rkvHOYs — EarthSky (@earthskyscience) March 2, 2018 Mercury and Venus will appear close together in the first few weeks of March, and you can catch them in the west after sunset. Venus is around “12 times brighter than Mercury,” so EarthSky recommends searching for Venus if you’re having trouble finding our solar system’s smallest planet. If you’re in the Southern Hemisphere, don’t worry! You’ll get your shot at spotting the five planets in April. Via EarthSky and The Weather Channel Images via Greg Rakozy on Unsplash and Paul VanDerWerf on Flickr

View original post here:
Planet parade to dazzle stargazers this week here’s what you need to know

Two Trappist-1 planets are highly likely to be habitable

January 24, 2018 by  
Filed under Green

Comments Off on Two Trappist-1 planets are highly likely to be habitable

Scientists have concluded that two planets orbiting the dim dwarf star known as Trappist-1 are highly likely to be habitable by humans due to the potential presence of water and sufficient heat. Trappist-1 and its seven orbiting planets were discovered last year, elating scientists who had never encountered a solar system with so many Earth-size planets in a habitable zone of space. This new revelation indicates there may be more Earth-like planets throughout the Milky Way galaxy than once thought. To determine the habitability of the Trappist-1 planets, Dr. Amy Barr of the Planetary Science Institute and colleagues in Hungary constructed mathematical models of each planet, including its interior. From these models, the team found that six of the seven planets are likely to have water, solid or liquid, while one may even host a global ocean . In an innovative move, the team also used models of each planet’s orbit to extrapolate their surface temperatures. “The planets are also on eccentric orbits – kind of egg-shaped – so every time the planet goes around the star it gets stretched and squeezed,” Barr told the Guardian . This effect is known as tidal heating and increases the likelihood of habitability by warming the planet and facilitating a more dynamic flow and chemistry within the planet’s mantle. Related: New periodic table sorts 3,700 known exoplanets into 18 categories In a paper to be published in  the journal Astronomy & Astrophysics , the team concluded that planets d and e are the two most likely to be habitable by humans. Planet d is estimated to have an average surface temperature of 15C (59F), though it may be as low as just above the freezing point for water. In contrast, planet e is thought to have temperatures that parallel those of Antarctica . Ultimately, more research needs to be done to determine the precise conditions of these planets, including whether they are able to hold water or if they possess an atmosphere. A successful launch of NASA ‘s next-generation telescope, the James Webb, will likely shed more light on these fascinating exoplanets. In the meantime, computer models offer glimpses into worlds that may harbor extraterrestrial life. Via the Guardian Images via NASA   (1)

Original post:
Two Trappist-1 planets are highly likely to be habitable

Scientists glimpse most distant supermassive black hole in the known universe

December 7, 2017 by  
Filed under Green

Comments Off on Scientists glimpse most distant supermassive black hole in the known universe

A team of scientists has discovered the known universe’s most distant supermassive black hole . The black hole is so far from Earth, it has taken over 13 billion years for light from the object to reach our planet. Given the universe’s age of approximately 13.8 billion years, observations of this newly discovered black hole offer scientists a glimpse into a much younger universe. “This is the only object we have observed from this era,” Robert Simcoe, the Francis L. Friedman Professor of Physics in MIT ‘s Kavli Institute for Astrophysics and Space Research, told Phys.org . “It has an extremely high mass, and yet the universe is so young that this thing shouldn’t exist. The universe was just not old enough to make a black hole that big. It’s very puzzling.” Approximately 800 times larger than our sun , the supermassive black hole, also known as a quasar, was first discovered by Eduardo Bañados, an astronomer at Carnegie Institution for Science, while browsing through maps of the distant universe. Bañados was specifically in search of quasars, among the brightest objects in the universe , which are composed of a supermassive black hole orbited by swirling, accumulating matter. “Something is causing gas within the quasar to move around at very high speed, and the only phenomenon we know that achieves such speeds is orbit around a supermassive black hole,” said Simcoe. The research team, which includes scientists from MIT and whose work was published in the journal Nature ,  used the object’s “redshift,” the phenomenon in which objects farther away emit light that is closer to the infrared end of the light spectrum, to identify its mass and age. Related: Scientists find a massive black hole swirling in the Milky Way The supermassive black hole seems to have formed at a pivotal time in the universe’s formation. “What we have found is that the universe was about 50/50—it’s a moment when the first galaxies emerged from their cocoons of neutral gas and started to shine their way out,” said Simcoe. “This is the most accurate measurement of that time, and a real indication of when the first stars turned on.” While the supermassive black hole has offered some insight into the early universe, how such an object formed in those conditions remains a mystery. “If you start with a seed like a big star, and let it grow at the maximum possible rate, and start at the moment of the Big Bang, you could never make something with 800 million solar masses—it’s unrealistic,” said Simcoe. “So there must be another way that it formed. And how exactly that happens, nobody knows.” Via Phys.org Images via  Robin Dienel/Carnegie Institution for Science

Original post: 
Scientists glimpse most distant supermassive black hole in the known universe

NASA communicates with spacecraft 13 billion miles from Earth

December 4, 2017 by  
Filed under Eco, Green

Comments Off on NASA communicates with spacecraft 13 billion miles from Earth

For the first time in 37 years, NASA has communicated with Voyager 1 – which is 13 billion miles away from Earth. The space agency made contact with the spacecraft to reorient it and activate its back-up thrusters to better send information back to Earth. Launched in 1977, Voyager 1 is the only known spacecraft cruising beyond our solar system. Prior to leaving, Voyager 1 and its sister ship Voyager 2 gathered, then transmitted to Earth, the first detailed data from Jupiter , Saturn and Titan, Saturn’s largest moon. NASA’s most recent communication with the spacecraft has made adjustments to its alignment, which should extend its usable life by two to three years as it continues its flight into new interstellar territory. Voyager 1 still communicates with scientists on Earth through the Deep Space Network, a communications system designed in the 1970s that allowed the most recent adjustments to Voyager 1’s trajectory to occur. Voyager 1 has primarily used its main thrusters, which periodically make adjustments to the spacecraft’s flight path to ensure optimum functionality. However, over the years, the main thrusters have become worn down, requiring the earthbound team to turn to Voyager 1’s back-up thrusters, which had not been used since 1980.  “The Voyager flight team dug up decades-old data and examined the software that was coded in an outdated assembler language, to make sure we could safely test the thrusters,” said Chris Jones, chief engineer at NASA’s Jet Propulsion Laboratory (JPL). Related: SpaceX to launch reused rocket in a historic first for NASA Despite its long hibernation, Voyager 1’s back-up thruster system returned to duty without major incident. “The Voyager team got more excited each time with each milestone in the thruster test,” said Todd Barber, propulsion engineer at JPL. The mood was one of relief, joy and incredulity after witnessing these well-rested thrusters pick up the baton as if no time had passed at all.” The team intends to conduct the same operation with Voyager 2, which is expected to leave the solar system within the next few years. Via Science Alert Images via Kevin Gill/Flickr   (1) and NASA

Read the original here: 
NASA communicates with spacecraft 13 billion miles from Earth

NASA confirms asteroid came from another solar system – and it’s incredibly bizarre

November 21, 2017 by  
Filed under Green

Comments Off on NASA confirms asteroid came from another solar system – and it’s incredibly bizarre

The presence of an unidentified object hurtling through our solar system recently prompted a call to action from observatories throughout the world. NASA has confirmed that it’s the first object to arrive from another star – and it may be as long as a quarter mile. While the rocky asteroid, dubbed ‘Oumuamua, is definitely not piloted by aliens, it could give us clues into the formation of other solar systems. In late October, scientists thought they might have observed an object that came from outside the solar system with the aid of the University of Hawaii’s Pan-STARRS1 telescope. The International Astronomical Union reclassified the object from a comet to an interstellar asteroid, per a November 14 release . NASA’s Science Mission Directorate associate administrator Thomas Zurbuchen said in a November 20 press release : “For decades we’ve theorized that such interstellar objects are out there, and now – for the first time – we have direct evidence they exist.” Related: Scientists might have spotted the first object from outside our solar system Yesterday the journal Nature published a study on the find , led by scientists at the Institute for Astronomy in Hawaii. NASA helped fund the work. The bizarre asteroid could have been “wandering through the Milky Way , unattached to any star system, for hundreds of millions of years before its chance encounter with our star system,” according to the agency. ‘Oumuamua – Hawaiian for “a messenger from afar arriving first” – has a slightly reddish hue, and is around 10 times as long as it is wide, according to NASA, which said the asteroid’s aspect ratio is bigger than any other asteroid or comet we’ve ever observed. And it varies widely in brightness: “by a factor of 10 as it spins on its axis every 7.3 hours.” It’s likely dense, comprised of metals or rock, without ice or water, and could have been reddened by irradiation from cosmic rays . A few of Earth’s big ground-based telescopes are still tracking ‘Oumuamua. It’s around 124 million miles away from our planet and will probably be too faint for detection around mid-December. It will head for the constellation Pegasus after exiting our solar system. Via NASA Images via European Southern Observatory/M. Kornmesser and the International Astronomical Union

Read more: 
NASA confirms asteroid came from another solar system – and it’s incredibly bizarre

Brilliantly renovated Rusty House is wrapped in a layer of rusted steel

November 21, 2017 by  
Filed under Green

Comments Off on Brilliantly renovated Rusty House is wrapped in a layer of rusted steel

Exposed raw steel wraps around this small house in the Czech Republic , renovated by OK PLAN ARCHITECTS . Covered with a vibrant layer of pre-rusted sheet metal (CorTen), the Rusty House is a minimalist residence that surprises passersby with its unusual exterior and layout maximizes the potential of its tiny plot. After living in the house for twelve years, the owner decided to renovate the interior of the house and “soften” the appearance of the main living space. OK PLAN ARCHITECTS helmed the renovation process which included landscaping  the surrounding garden. Related: Rusty tin shed transformed into beautiful two-story studio in Sydney Exposed concrete, galvanized steel and corrugated sheet metal dominate the house. The architects added layers to the interior, including oak ceiling panels, in order to improve the organization of the interior and its acoustic performance . Custom-made furniture and fixtures were added to bring an element of modernity to the place. Older kitchen cabinets were replaced, and a new fireplace installed in the living room. The architects blended the old and the new to respond to new functional and aesthetic demands, while preserving the rawness of the original structure. + OK PLAN ARCHITECTS Photos by BoysPlayNice Photography

See the original post here: 
Brilliantly renovated Rusty House is wrapped in a layer of rusted steel

Next Page »

Bad Behavior has blocked 2548 access attempts in the last 7 days.