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Low-power Wi-Fi system wins high praise

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UW researchers have generated Passive Wi-Fi transmissions that use 10,000 times less power than current methods. (Credit: UW via YouTube)

Computer scientists and engineers from the University of Washington say they’ve figured out a way to generate Wi-Fi transmissions using 10,000 times less power than conventional methods.

Not even low-power options such as Bluetooth Low Energy and Zigbee can match the system’s energy efficiency, based on a study to be presented in March at the 13th USENIX Symposium on Networked Systems Design and Implementation.

That level of performance has earned the UW team’s Passive Wi-Fi system a place on MIT Technology Review’s latest top-ten list of breakthrough technologies.

Other technologies on the list include rocket reusability, which is being pioneered by SpaceX and Blue Origin; Tesla’s Autopilot system for autonomous driving; and T-cell-based immunotherapy, which is the focus for researchers at Seattle-based Juno Therapeutics and other companies.

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Astronaut goes ape on the space station

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NASA’s Scott Kelly floats through the International Space Station in a gorilla suit. (Credit: NASA)

Leave it to Scott Kelly, NASA’s record-holder for longest continuous time spent in space, to go big and go home: While winding down nearly a year in orbit, he donned an ape suit to terrorize a crewmate on the International Space Station.

At least British astronaut Tim Peake looks terrorized: It’s hard to believe he wasn’t in on the joke.

The prank started with the arrival of the gorilla suit – a gag gift from Kelly’s twin brother, Mark, that was sent up on a resupply flight. Scott Kelly climbed into the suit, and then climbed into a soft-sided storage container. NASA video shows Peake strapping down the container in the station’s Destiny lab as commentator Rob Navias narrates the scene.

The next shot shows the suit-wearing Kelly climbing out of the storage container, floating into the module next door, then chasing Peake in zero-G like a batty ape out of hell. Hilarity ensues.

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World View balloon venture picks chief pilot

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NASA astronaut Ron Garan floats in the International Space Station’s Cupola in 2011. (Credit: NASA)

Former astronaut Ron Garan has a new vantage point for sharing what he calls “the Orbital Perspective”: his position as chief pilot for World View Enterprises.

Arizona-based World View wants to give passengers a near-space experience, by sending them up in a pressurized capsule that’s lofted to heights beyond 100,000 feet by a high-altitude balloon. During a leisurely ascent to the atmosphere, passengers would get a space-like view of the Earth below, with the black arc of space above. Then the capsule would be cut loose from the balloon for a parachute-assisted descent and landing.

Cost for the trip? $75,000.

Garan told GeekWire that his job will be to ensure the “safe accomplishment of all aspects” of flight – not only for the passenger flights in the future, but for the remote-controlled flights that are going on now.

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Pegasus will put you in touch with stratosphere

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The sun shines above the clouds in a view captured by the Pegasus I balloon experiment. (Credit: MIcrosoft)

How high can the Internet of Things go? Microsoft Research plans to extend the IoT into the stratosphere with its Pegasus II high-altitude balloon experiment, and you’re invited to take a virtual ride.

The flight will build on years’ worth of research into creating networks that can take advantage of Microsoft Azure cloud services, even when part of the network is above the clouds.

Pegasus I sent a balloon from Othello, Wash., to an altitude of 100,000 feet in January 2015. The communication system experienced some glitches, but Microsoft Research’s Project Orleans team eventually recovered the instrument payload and extracted data that helped them prepare for the Pegasus sequel.

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Moon stamps make a full-moon debut

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You can get 10 “Global Forever” moon stamps on a sheet that looks like the night sky looming above a row of trees. © 2016 USPS

Now you can moon your mail carrier … not in the scatological sense, but in the philatelic sense.

To celebrate this week’s full moon, the U.S. Postal Service officially released its circular moon stamp on Feb. 22. One stamp sells for $1.20, and provides “Global Forever” postage for sending a 1-ounce letter to most countries around the world. (Technically, they can go to any country that’s reachable by First Class Mail International service.)

You can buy the stamps at post offices or online. And if you’re a hard-core stamp collector, you can get a first-day-of-issue postmark or first-day cover by following the instructions in the postal service’s news release.

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Apollo 10’s moon music mystery revisited

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Apollo 10’s Gene Cernan, Tom Stafford and John Young sit for their official portrait. (Credit: NASA)

Where did the weird, outer-spacey music that Apollo 10’s astronauts heard on the far side of the moon come from? The case was solved decades ago. Or was it???

“NASA’s Unexplained Files,” airing on the Science Channel, leaves the mystery hanging in a show that’s due to air this season. The program also makes it sound as if the case was hushed up until 2008, for fear that its disclosure would unsettle the public.

“Shall we tell them about it?” astronaut John Young is heard saying on an audio recording. Crewmate Gene Cernan replies, “I don’t know. We ought to think about it some.”

The show’s narrator says the mystery continues to this day. “I suspect there’s a very, very clear cause of what they heard on Apollo 10, which maybe we haven’t uncovered yet, ” Apollo 15 astronaut Al Worden says in an interview.

But the way NASA and other Apollo astronauts tell it, the mystery was solved soon after Apollo 10’s crew returned from their 1969 round-the-moon trip.

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Astronaut applicants face 2,000-to-1 odds

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NASA’s Scott Kelly snaps a selfie during a spacewalk at the space station. (Credit: NASA)

You think it’s hard to get into Harvard? Try making an impression when you’re among the record-high group of 18,300 people who applied to be an astronaut.

NASA says that tally is three times as high as the number who applied the last time the space agency put out the call, for the Class of 2013. And it far exceeds the previous record of 8,000 applications, set in 1978 during the buildup to the space shuttle program.

Now that the application deadline has passed, NASA’s Astronaut Selection Board will have to winnow through the pile. The space agency expects to choose somewhere between eight and 14 astronaut candidates for the Class of 2017. That means the acceptance rate will be somewhere in the neighborhood of 0.05 percent, compared to a 6 percent rate for Harvard.

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New SpaceShipTwo generates positive vibes

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In this photo from the rollout, the VSS Unity rocket plane is on the left, the VMS Eve mothership is on the right, and Virgin Galactic’s Richard Branson is on the dais. (Virgin Galactic photo)

MOJAVE, Calif. – This time around, Virgin Galactic took no chances with the weather.

When the first SpaceShipTwo rocket plane was rolled out and christened Virgin Spaceship Enterprise in 2009, the craft sat out in Mojave’s December chill. A windstorm ended up spoiling the party and blowing away the tents that Virgin Galactic set up for the celebration.

For Feb. 19’s christening of Virgin Spaceship Unity, the ceremonies were held indoors at the hangar used by Virgin Galactic and its manufacturing arm, known as The Spaceship Company.

Not that the weather was anything to worry about: The show wrapped up in the middle of the afternoon, well before the temperatures dropped and the winds picked up. VSS Unity was even taken outside into the sunshine after the ceremonies wrapped up.

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Virgin Galactic christens reborn SpaceShipTwo

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Virgin Galactic’s second SpaceShipTwo rocket plane, dubbed the VSS Unity, rolls out under the spotlights at the company’s hangar in Mojave, Calif. (GeekWire photo by Alan Boyle)

MOJAVE, Calif. – Sixteen months after Virgin Galactic’s first SpaceShipTwo rocket plane was lost amid tragedy, the second SpaceShipTwo was christened Virgin Spaceship Unity with a smashed bottle of milk and a big gulp of celebrity glitz.

Hundreds of employees, VIPs and would-be spacefliers gathered on Feb. 19 for the craft’s official rollout at the Final Assembly, Integration and Test Hangar, or FAITH, here at the Mojave Air and Space Port. And although British theoretical physicist Stephen Hawking couldn’t attend the ceremony in person, he read out the rocket plane’s new name in an audio clip.

“We are entering a new space age, and I hope this will help to create a new unity,” said Hawking, who has been guaranteed a free spaceflight if he’s up to it when VSS Unity enters service. “Space exploration has already been a great unifier. We seem able to cooperate between nations in space, in a way we can only envy on Earth.”

Then Virgin Galactic’s founder, British billionaire Richard Branson, arranged for the official christening to be done by his granddaughter, Eva Deia, who was born exactly one year ago today.

“I’m pretty sure a 1-year-old has never christened a spaceship before, so we really are in virgin territory,” Branson quipped. “Today seems to the right time to change that, as we after all are celebrating the birth of two gorgeous ladies.”

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Did Pluto’s moon Charon once have an ocean?

Image: Charon
This close-up of Charon’s canyons was taken by NASA’s New Horizons probe during last July’s flyby. The color-coded picture shows elevation data. Serenity Chasma’s depth can exceed 4 miles in places. In comparison, the Grand Canyon’s maximum depth is a mile. (Credit: NASA / JHUAPL / SwRI)

Scientists say the patterns of ice in canyons on Charon, Pluto’s largest moon, look as if some the frozen water was once liquid. And that suggests Charon had a subsurface ocean in ancient times.

The evidence comes from close analysis of images and elevation data collected last July when NASA’s New Horizons probe zoomed past Pluto and its moons. Even before the flyby, scientists speculated that Charon may have harbored liquid water, and that some water may still flow beneath its icy surface. The stereo measurements from New Horizons’ Long Range Reconnaissance Orbiter, or LORRI, are consistent with that hypothesis.

The clues come in the form of stretch marks in the ice around Serenity Chasma, a canyon that’s 4.5 miles deep in some places.

“Charon’s tectonic landscape shows that, somehow, the moon expanded in its past, and – like Bruce Banner tearing his shirt as he becomes the Incredible Hulk – Charon’s surface fractured as it stretched,” the science team said in an image advisory on Thursday.

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