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Airglow Borealis The best known asterism in northern skies hangs over the Canadian Rockies in this mountain and night skyscape taken last week from Banff National Park. But most remarkable is the amazing greenish airglow. With airglow visible to the eye, but not in color, the scene was captured in two exposures with a single camera, one exposure made while tracking the stars and one fixed to a tripod. Airglow emission is predominately from atmospheric oxygen atoms at extremely low densities. Commonly recorded in color by sensitive digital cameras the eerie, diffuse light is seen here in waves across the northern night. Originating at an altitude similar to aurorae, the luminous airglow is due to chemiluminescence , the production of light through chemical excitation and radiative decay. Energy for the chemical excitation is provided during daytime by the Sun's extreme ultraviole...

No Way Out - A Dead Realm Tale is Now Available on Steam! No Way Out: A Dead Realm Tale is a chilling VR experience that takes you to hell and back! Race against the clock as you solve puzzles in this haunted mansion caught between our world and the Dead Realm. Will you escape? Or will you become just another lost soul trapped forever in Huxley’s Mansion? via Steam RSS News Feed "https://ift.tt/2AuoniU"

Environment Without even giving them freezer burn. The new research suggests we could preserve diverse coral larvae for decades. via Popular Science "https://ift.tt/2z6cgGS"

Gadgets The biggest camera show in the U.S. has some impressive new models. All the best new gear that we saw during the New York City show. via Popular Science "https://ift.tt/2Rgr9hm"

Nexus Media News Rising temperatures are driving these crime-fighting insects from their homes. Blow flies are showing up in the Midwest, where they never used to be. Climate change explains why this species is on the move. via Popular Science "https://ift.tt/2z60WdH"

Science It doesn’t even look real. Okay so it’s not a perfect rectangle, but this floating ice sheet gets unsettlingly close. NASA scientists spotted the geometric beauty in Antarctica earlier this… via Popular Science "https://ift.tt/2PT01Vc"

Technology An ode to the best of the automated accounts. Twitter is cracking down on bots—and for good reason. But not all bots are bad. via Popular Science "https://ift.tt/2AuUIGe"

Health Young, healthy people need to get the shot too. By now you’ve probably heard that last year’s flu season was one of the worst on record. New data may tell us why. via Popular Science "https://ift.tt/2OSvASA"

DIY Defend your information. It’s become a sad reality of the modern world: Someday, your credit card information will fall into the wrong hands. Here's what to do when that happens to you. via Popular Science "https://ift.tt/2OSgyfC"

Science The Paleoamerican migration plot thickens. The spearheads date back to more than 13,500 years ago, making them possibly the oldest weapons ever found in North America. via Popular Science "https://ift.tt/2Sl7MoC"

IC 59 and IC 63 in Cassiopeia These bright rims and flowing shapes look ghostly on a cosmic scale. A telescopic view toward the constellation Cassiopeia , the colorful (zoomable) skyscape features the swept-back, comet-shaped clouds IC 59 (left) and IC 63. About 600 light-years distant, the clouds aren't actually ghosts, but they are slowly disappearing under the influence of energetic radiation from hot,luminous star gamma Cas. Gamma Cas is physically located only 3 to 4 light-years from the nebulae, just off the top right edge of the frame. Slightly closer to gamma Cas, IC 63 is dominated by red H-alpha light emitted as hydrogen atoms ionized by the star's ultraviolet radiation recombine with electrons. Farther from th e star, IC 59 shows proportionally less H-alpha emission but more of the characteristic blue tint of dust reflected star light . The field of view spans ab...

Health In mice, sniffing some linalool is similar to taking Valium. Immersing yourself in a lavender cloud may actually help reduce anxiety, according to new research published this week. via Popular Science "https://ift.tt/2CIxqyn"

Technology The FCC voted to open up more space in the spectrum for connected devices. The 6 Ghz part of the wireless spectrum could soon host your Wi-Fi gadgets. via Popular Science "https://ift.tt/2PXzTZd"

An update to Team Fortress 2 has been released. The update will be applied automatically when you restart Team Fortress 2. The major changes include: Updated the Roaring Rockets unusual taunt particle effect Updated the equip_region for the Earbuds Updated the models for the TFNew tournament medals to fix their broken LODs Updated the localization files Updated pl_fifthcurve_event Fixed a bug where players could spam "escaped from underworld" Updated koth_bagel_event Fixed a projectile bug that was occurring in RED's vent room Updated some propfades on the lightbulbs in RED's valley Updated pl_rumble_event Fixed an exploit related to using the tiny spell and building sentries inside a wall Bumper cars are now placed in a random order in underworld, after main world has run out of time or ended by explosion Fixed bumper car race instructional text not showing to all players Fixed Merasmus sometimes using his round-beginning lines in the middle of t...

Health Here's what you need to know about the adenovirus. This past week, New Jersey State Health Officials reported the deaths of seven children, all from a rehabilitation center in the state’s town of Haskell. via Popular Science "https://ift.tt/2PUQflr"

Animals Songbirds need bugs, and bugs need local greens. By studying more than 160 yards, Narango found that suburban lawns with at least 70% native trees and shrubs were able to sustain breeding chickadees. via Popular Science "https://ift.tt/2qaOFRh"