Tesla Starts Selling Solar Roof, Says Savings to Cover Costs

Tesla Starts Selling Solar Roof, Says Savings to Cover Costs

Electric car maker Tesla has added another product to its lineup: Solar roof tiles. As of Wednesday, customers worldwide could order a solar roof on Tesla’s web site. Installations will begin next month in the US, starting with California. Installations outside the US will begin next year, the company said. The glass tiles were unveiled by Tesla last fall just before the company merged with solar panel maker SolarCity. They’re designed to look like a traditional roof, with options that replicate slate or terracotta tiles. The solar tiles contain photovoltaic…

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NASA Says a Big Asteroid Will Fly ‘Very Close’ to Earth in Mid-April

NASA Says a Big Asteroid Will Fly ‘Very Close’ to Earth in Mid-April

A large near-Earth asteroid discovered nearly three years ago will fly safely past Earth on April 19th, US space agency NASA has said. The space rock, known as 2014 JO25, is estimated to be 2,000 feet in size. It is expected to fly by Earth at a safe distance of about 1.1 million miles (1.8 million kilometres), or about 4.6 times the distance from Earth to the moon, Xinhua news agency reported on Friday. “Although there is no possibility for the asteroid to collide with our planet, this will be…

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Dark matter less influential in galaxies in early universe

Dark matter less influential in galaxies in early universe

Schematic representation of rotating disc galaxies in the early Universe (right) and the present day (left). Observations with ESO’s Very Large Telescope suggest that such massive star-forming disc galaxies in the early Universe were less influenced by dark matter (shown in red), as it was less concentrated. As a result the outer parts of distant galaxies rotate more slowly than comparable regions of galaxies in the local Universe. We see normal matter as brightly shining stars, glowing gas and clouds of dust. But the more elusive dark matter does not…

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Scientists Create Metallic Hydrogen, a Possible Superconductor, Ending Quest

Scientists Create Metallic Hydrogen, a Possible Superconductor, Ending Quest

US scientists have succeeded in squeezing hydrogen so intensely that it has turned into a metal, creating an entirely new material that might be used as a highly efficient electricity conductor at room temperatures. The discovery, published in the journal Science on Thursday, provides the first confirmation of a theory proposed in 1935 by physicists Hillard Bell Huntington and Eugene Wigner that hydrogen, normally a gas, could occur in a metallic state if exposed to extreme pressure. Several teams have been racing to develop metallic hydrogen, which is highly prized…

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SpaceX CEO Elon Musk Says First Mars Explorers Must Be ‘Prepared to Die’

SpaceX CEO Elon Musk Says First Mars Explorers Must Be ‘Prepared to Die’

SpaceX is developing a massive rocket and capsule to transport large numbers of people and cargo to Mars with the ultimate goal of colonizing the planet, company chief and tech billionaire Elon Musk said on Tuesday. Musk outlined his plans for the Mars rocket, capable of carrying 100 passengers plus cargo per voyage, even as SpaceX is still investigating why a different rocket carrying a $200 million Israeli satellite blew up on a launch pad in Florida earlier this month. SpaceX intends to fly to Mars about every 26 months…

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Astronomers Spot Giant Planet That Experiences Triple Sunrises and Sunsets

Astronomers Spot Giant Planet That Experiences Triple Sunrises and Sunsets

Astronomers have discovered a planet unlike any other ever found, one that loops widely around one star that is locked in a gravitational embrace with two others in a triple-star system, creating a curious celestial ballet. The findings, published on Thursday in the journal Science, challenge current notions about what makes a planetary system viable. With three stars in the system, the massive planet would experience triple sunrises and triple sunsets during one season and all daylight in another. Since the planet’s orbit is very long, each season lasts for…

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World’s Fastest Supercomputer Is Made Entirely in China: Survey

World’s Fastest Supercomputer Is Made Entirely in China: Survey

A Chinese supercomputer has topped a list of the world’s fastest computers for the seventh straight year – and for the first time the winner uses only Chinese-designed processors instead of US technology. The announcement Monday is a new milestone for Chinesesupercomputer development and a further erosion of past US dominance of the field. Last year’s Chinese winner in the TOP500 ranking maintained by researchers in the United States and Germany slipped to No. 2, followed by a computer at the US government’s Oak Ridge National Laboratory in Tennessee. Also…

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Why Solar-Powered Planes Are Still a Long Way From Carrying Passengers

Why Solar-Powered Planes Are Still a Long Way From Carrying Passengers

Swiss pilot Bertrand Piccard made headlines on Saturday when he glided a solar-powered plane onto Moffett Airfield in California after a three-day journey across the Pacific Ocean. It’s the most recent stop in an around-the-world trip that began in Abu Dhabi last spring and is intended to raise awareness about the importance of reducing carbon emissions through the use of clean energy. The plane itself, “Solar Impulse 2,” is a true zero-fuel aircraft, powered by more than 17,000 solar cells. It’s designed to carry just one pilot – Piccard and…

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Japan Abandons Costly X-Ray Satellite Lost in Space

Japan Abandons Costly X-Ray Satellite Lost in Space

Japan’s space agency has abandoned its efforts to restore the operations of a multimillion-dollar satellite that was to probe the mysteries of black holes using X-ray telescopes. The Japan Aerospace Exploration Agency announced Thursday that it would stop trying to fix the satellite after determining that it was “highly likely” that its two solar arrays had broken off at their bases. Contact was lost with the satellite on March 26, more than a month after its launch from southern Japan on February 17. The satellite, named Hitomi, was much larger…

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SpaceX Targets 2018 for First Mars Mission

SpaceX Targets 2018 for First Mars Mission

SpaceX plans to send an unmanned Dragon spacecraft to Mars as early as 2018, the company said on Wednesday, a first step in achieving founder Elon Musk’s goal to fly people to another planet. US space agency Nasa, which is aiming for a human mission to Mars in the 2030s, said it will provide technical support for SpaceX’s first foray, known as Red Dragon. SpaceX “could provide valuable entry, descent and landing data to Nasa for our journey to Mars, while providing support to American industry,” Nasa said in a…

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