Well, it had to come to an end some time. There’s been a whole lot of buzz over KIC 8462852 - a star located about 1,500 light-years away between the Cygnus and Lyre constellations of our Milky Way galaxy. It’s displaying such weird behaviour, one scientist even threw the possibility of an advanced alien civilisation building a giant Dyson sphere nearby.
But new research has come up with the most plausible explanation yet for KIC 8462852’s weirdness - a barrage of comet fragments are spinning in a tight orbit around the star. […] But despite the evidence, they’re still not ready to discount the alien megastructure idea entirely. “We can’t really say it is, or is not,” said Marengo. “But what the star is doing is very strange. It’s interesting when you have phenomena like that - typically it means there’s some new physical explanation or a new concept to be discovered.”
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Inhabitat’s Week in Green: Tesla Model S recall, and more!
Moscow (Sputnik) Jan 01, 2016 The Chinese military is undergoing a gradual shift to cyber and space warfare, and the move is more visible now as a new command structure has been created. After testing an anti-satellite weapon last fall, China moved one step forward in its preparations for future warfare, with the emergence of a brand-new Space Force, as reported by Washington Times. In the event of an armed confl Full article
Today in the robot takeover: Disney has built a remote-control device that can climb walls while Singapore scientists created an eerie artificial being that can remember your past conversations (and may haunt your dreams.)
Did you know that several forest species need fire to survive?
In the conifer-rich forests of western North America, lodgepole pines constantly seek the sun. Their seeds prefer to grow on open, sunny ground, which pits saplings against each other as each tries to get more light by growing straighter and faster than its neighbors. Over time, generations of slender, lofty lodgepoles form an umbrella-like canopy that shades the forest floor below. But as the trees’ pine cones mature to release their twirling seeds, this signals a problem for the lodgepole’s future: very few of these seeds will germinate in the cool, sunless shade created by their towering parents.
These trees have adapted to this problem by growing two types of cones. There are the regular annual cones that release seeds spontaneously:
And another type called serotinous cones, which need an environmental trigger to free their seeds:
Serotinous cones are produced in thousands and are like waterproof time capsules sealed with resinous pitch. Many are able to stay undamaged on the tree for decades. Cones that fall to the ground can be viable for several years as well. But when temperatures get high enough, the cones pop open.
Once it’s gotten started, a coniferous forest fire typically spreads something like this: flames ravage the thick understory provided by species like Douglas Fir, a shade-tolerant tree that’s able to thrive under the canopy of lodgepole pines. The fire uses these smaller trees as a stepladder to reach the higher canopy of old lodgepole pines. That ignites a tremendous crown fire, reaching temperatures of up to 2400 degrees Fahrenheit. At those temperatures, the serotinous cones burst open, releasing millions of seeds which are carried by the hot air to form new forests. After the fire, carbon rich soils and an open, sunlit landscape help lodgepole seeds germinate quickly and sprout in abundance. From the death of the old forest comes the birth of the new.
So however counterintuitive it may seem, wildfires are important for the wider ecosystem as a whole. Without wildfires to rejuvenate trees, key forest species would disappear—and so would the many creatures that depend on them. And if a fire-dependent forest goes too long without burning, that raises the risk of a catastrophic blaze which could destroy a forest completely, not to mention people’s homes and lives. That’s why forest rangers sometimes intentionally start controlled burns—to reduce fuels in order to keep the more dangerous wildfires at bay.
From the TED-Ed Lesson Why wildfires are necessary - Jim Schulz
Animation by @provinciastudio
Humans might not be the only creatures that care about the welfare of other animals. Scientists are beginning to recognize a pattern in humpback whale behavior around the world, a seemingly intentional effort to rescue animals that are being hunted by killer whales.
Marine ecologist Robert Pitman observed a particularly dramatic example of this behavior back in 2009, while observing a pod of killer whales hunting a Weddell seal trapped on an ice floe off Antarctica. The orcas were able to successfully knock the seal off the ice, and just as they were closing in for the kill, a magnificent humpback whale suddenly rose up out of the water beneath the seal.
This was no mere accident. In order to better protect the seal, the whale placed it safely on its upturned belly to keep it out of the water. As the seal slipped down the whale’s side, the humpback appeared to use its flippers to carefully help the seal back aboard. Finally, when the coast was clear, the seal was able to safely swim off to another, more secure ice floe.
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Read the study: Humpback whales interfering when mammal-eating killer whales attack other species: Mobbing behavior and interspecific altruism?
One of the physicists who helped find the Higgs boson, Elina Berglund, has spent the past three years working on something completely different - a fertility app that tells women when they’re fertile or not.
It’s not the first fertility app out there, but Berglund’s app works so well that it’s been shown to help women avoid pregnancy with 99.5 percent reliability - an efficacy that puts it right up there with the pill and condoms.
Best of all, the app doesn’t have any side effects, and just requires women to input their temperature daily to map their fertility throughout the month.
Back in 2012, Berglund was working at CERN on the Large Hadron Collider experiment to find the famous Higgs boson. But after the discovery of the particle, she felt it was time to work on something completely different.
“I wanted to give my body a break from the pill,” she told Daniela Walker from Wired, “but I couldn’t find any good forms of natural birth control, so I wrote an algorithm for myself.”
The resulting app is called Natural Cycles, and so far, it’s had pretty promising results.
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Did you know that “We’re With You When You Fly”? Thanks to our advancements in aeronautics, today’s aviation industry is better equipped than ever to safely and efficiently transport millions of passengers and billions of dollars worth of freight to their destinations. In fact, every U.S. Aircraft flying today and every U.S. air traffic control tower uses NASA-developed technology in some way. Here are some of our objectives in aeronautics:
Making Flight Greener
From reducing fuel emissions to making more efficient flight routes, we’re working to make flight greener. We are dedicated to improving the design of airplanes so they are more Earth friendly by using less fuel, generating less pollution and reducing noise levels far below where they are today.
Getting you safely home faster
We work with the Federal Aviation Administration to provide air traffic controllers with new tools for safely managing the expected growth in air traffic across the nation. For example, testing continues on a tool that controllers and pilots can use to find a more efficient way around bad weather, saving thousands of pounds of fuel and an average of 27 minutes flying time per tested flight. These and other NASA-developed tools help get you home faster and support a safe, efficient airspace.
Seeing Aviation’s Future
Here at NASA, we’re committed to transforming aviation through cutting edge research and development. From potential airplanes that could be the first to fly on Mars, to testing a concept of a battery-powered plane, we’re always thinking of what the future of aviation will look like.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Asteroids can be hazardous to life on Earth, but they also provide clues about the early solar system. Denton Ebel, curator in the Museum’s Division of Physical Sciences, explains how asteroids formed and the varying degrees of destruction they cause when they fall to Earth.
What Is An Asteroid?
Meteorite, Meteor: What’s the Difference?
Why Are There No Planets in the Asteroid Belt?
What Were the Biggest Asteroids to Hit Earth?
Can Asteroids Be Deflected?
And don’t miss the videos, What Happens When Large Meteorites Fall to Earth?, and How Are Large Asteroids Tracked?
Scientists spotted a possible ice volcano on the surface of Pluto. At about 90 miles (150 kilometers) across and 2.5 miles (4 kilometers) high.
Scientists have assembled the highest-resolution color view of one of the cryovolcanoes.
If confirmed, it would be the largest such feature discovered in the outer solar system. More at: http://go.nasa.gov/1mYCtyZ
Congress Instructs NASA to Build a Space Habitat by 2018
Some of NASA’s successes in 2015 include finding liquid water on Mars and icy mountains on Pluto. In fact, the agency has been making so much waves that the US Congress has decided to give it a raise.
However, there’s a catch.
http://futurism.com/links/congress-instructs-nasa-build-space-habitat-2018/