Another month, another Alien Megastructure theory — New research suggests that Tabby’s star (the celestial object voted most likely to host an alien megastructure) is acting weirdly because it recently annihilated an entire planet, and the shattered remains of that planet are now producing strange flickering effects. It’s probably the best theory we’ve heard so far.
~ I’d be acting a bit weirdly too-, with indigestion.
We’re made of sawdust — New research confirms what science popularisers like Carl Sagan have said all along: humans truly are made of ‘star stuff‘ – and there are maps to prove it.
In the largest undertaking of its kind, a group of astronomers at the Sloan Digital Sky Survey in New Mexico has used the APOGEE (Apache Point Observatory Galactic Evolution Experiment) spectrograph to analyze the composition of 150,000 stars across the Milky Way. The team has catalogued the amount of CHNOPS elements ( carbon, hydrogen, nitrogen, oxygen, phosphorous, and sulphur) in each of the stars, and mapped out the prevalence of these ‘building blocks of life’ across the galaxy.
Go ahead and check out the team’s maps on SDSS.
~ Baby, you’re star.
Our galaxy has been stealing planets — New research from the Harvard-Smithsonian Center for Astrophysics (CfA) suggests some of the 11 farthest stars in our galaxy, approximately 300,000 lightyears from Earth, were probably snatched from the Sagittarius dwarf galaxy. It’s the second-closest galaxy to our own, making it the perfect victim for this celestial crime.
~ And not humans’ fault, for a change.
Scientists predict that a pair of stars in the constellation Cygnus will collide in 2022 — The explosion in the night sky should be so bright that it will be visible to the naked eye. From a report on NPR:
If it happens, it would be the first time such an event was predicted by scientists.
~ Better dust off that manger.
Mimas, a moon of Saturn, looks like the Death Star — This is easily one of the best pictures ever captured of Mimas, revealing intricate surface features and shadows cast across its iconic impact crater.
The Cassini spacecraft captured this image on October 22, 2016 at a distance of 185,000 kms (115,000 miles). Each pixel represents one full kilometre (3,300 feet). Mimas is just barely 400kms (248 miles) across, and it’s notable in that it’s the smallest body in the solar system to have a rounded shape, the result of its own gravity. Smaller satellites in the solar system, like Hyperion and Phoebe, are irregular, potato-shaped objects.
~ Big deal: an old golf ball also looks like the Death Star.
Our moon is older than we thought — The Moon is much older than previously estimated—up to 140 million years older. After analysing uranium decay in minerals called zircons, which can be found in Moon rocks brought back from the Apollo 14 mission in 1971, researchers concluded the Moon probably formed about 60 million years after our solar system was born. So now researchers have concluded the Moon is at least 4.51 billion years old.
~ Well, it is quite wrinkly.
Scientists have created mind-controlled zombie mice — Flash one light, and the mouse goes on the prowl, zombielike, stalking any prey in its path. Flash another, and it delivers a killing blow with its teeth. The mouse doesn’t hunt out of hunger — scientists are in control.
~ So, anyone else think scientists might use their time a bit better?
28¢worth of paper could transform health care — A loose assemblage of paper and string that Manu Prakash pulls from his pocket doesn’t look like much. And in a way, it’s not — just US20 cents’ worth (NZ28¢) of materials you can buy at an art supply store. But in another way, the Stanford bioengineer’s tangle of stuff is a minor miracle.
Prakash calls it a Paperfuge, and like the piece of lab equipment it’s named for, the centrifuge, it can spin biological samples at thousands of revolutions per minute. That’s a critical step in the diagnosis of infections like malaria and HIV. But unlike a centrifuge, the Paperfuge doesn’t need electricity, complicated machinery, expensive replacement parts, or even much money to operate.
~ Pure genius.
Algorithms design concert all — The most interesting thing about Herzog and De Meuron’s newly opened concert hall in Hamburg, Germany, isn’t the the Elbphilharmonie’s wave-like facade, which rises above the city. It’s not the gently curved elevator at the base of the lobby that deposits you into the belly of the Swiss architects’ alien landscape, and it’s not the Escher-esque stairways that guide you from one floor to the next.
For the Elbphilharmonie, Herzog and De Meuron used algorithms to generate a unique shape for each of the 10,000 gypsum fibre acoustic panels that line the auditorium’s walls like the interlocking pieces of a giant, undulating puzzle (main picture, above).
~ Each panel helps shape sound thanks to their individually crafted ‘cells’. But hey, what does it actually sound like?