Lost GoPro captures breathtaking views of Grand Canyon from edge of space

More than two years after a GoPro-fitted weather balloon was sent to the edge of space, the camera that was believed to be lost was recently found by a hiker filled with amazing aerial footage of the Grand Canyon.

Source: Lost GoPro captures breathtaking views of Grand Canyon from edge of space

After Finding Water, Nasa’s Mars Rover Scouts New Location

After Finding Water, Nasa’s Mars Rover Scouts New Location.After investigating the “Marias Pass” region where it found a geological contact zone and rocks that are unexpectedly high in silica and hydrogen content, Nasa’s Curiosity Mars rover has now moved to an entirely new location on the Red Planet.

The hydrogen indicates that the area was once brimming with water. Hydrogen in the ground beneath the rover is monitored by the rover’s Dynamic Albedo of Neutrons (DAN) instrument.

NASA tests shuttle-era engine for new rocket

NASA tests shuttle-era engine for new rocket.A shuttle-era main engine roared to life in a ground-shaking Mississippi test firing Thursday, the latest in a series of full-duration burns to make sure the upgraded powerplants can handle the higher temperatures, pressures and thrust levels needed for the agency’s new Space Launch System — SLS — super rocket.

Bolted into the Apollo-era A-1 test stand at NASA’s Stennis Space Center near Bay St. Louis, Miss., RS-25 engine No. 0525 ignited at 5:01 p.m. EDT, throttling up with a 120-decibel roar as it gulped more than 300 gallons of liquid oxygen and hydrogen rocket fuel per second.

With the propellants burning at some 6,000 degrees Fahrenheit — hot enough to melt lead — the Aerojet Rocketdyne engine’s exhaust plums shot out its liquid hydrogen-cooled nozzle at 13 times the speed of sound, blasting a billowing cloud of white steam high into the sky above the test stand

‘Impossible’ propellantless engine appears to work despite breaking laws of physics

‘Impossible’ propellantless engine appears to work despite breaking laws of physics.Ridiculed as impossible by the scientific community, the electromagnetic propulsion engine – which could supposedly take a craft from Earth to Pluto in just 18 months without the need for rocket fuel – has apparently been confirmed by an independent scientist as working.

German scientist Martin Tajmar​, who has a history of debunking fanciful propulsion systems, claims in a paper he has tested a copy of NASA’s experimental device (known as the EMDrive) and that it does produce thrust. This is controversial because the theory that has been used to explain the device violates conventional physics and the law of conservation of momentum.

Read more: http://www.smh.com.au/technology/technology-news/impossible-propellantless-engine-appears-to-work-despite-breaking-laws-of-physics-20150728-gimlhr.html#ixzz3iryde21f
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Comet, Philae skirt past the Sun with Rosetta in tow

Comet, Philae skirt past the Sun with Rosetta in tow.A comet hosting the Philae robot and orbited by the Rosetta spacecraft has zipped by past the Sun with all systems go, the European Space Agency says.

The comet 67P/Churyumov-Gerasimenko, which scientists say may help unlock the mystery of the origins of life on Earth, came within 186 million kilometres of our solar system’s star on Thursday, the agency said.

Pictures taken from Rosetta’s navigation camera showed that 67P was “very active” as its surface was buffeted by solar wind and heat, said Sylvian Lodiot, the engineer in charge of the spacecraft at ESA’s European Space Operations Centre in Germany.

Read more: http://www.smh.com.au/technology/sci-tech/comet-philae-skirt-past-the-sun-with-rosetta-in-tow-20150813-giyxqn.html#ixzz3irwMO9f3
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