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Scientists release biggest ever 3D map of the universe, lacks turn-by-turn navigation (video)
The stargazers at the Harvard-Smithsonian Center for Astrophysics have released a huge three-dimensional map of outer space, a core part of its six-year survey of the skies. Encompassing four billion light-years cubed, the researchers hope to use the map to retrace the movements of the universe through the last six billion years. Using the latest Sloan Digital Sky Survey (SDSS-III), the center says the data will help improve their estimates for the quantity of dark matter in space and the effect that dark energy has on the universe's expansion, "two of the greatest mysteries of our time" -- if you're an astrophysicist. Even if you're not, you'll still want to board the animated flight through over 400,000 charted galaxies -- it's embedded after the break.
Alt-week 7.8.2012: Solar flares, trapping dark matter, and life-sized Lego trees
Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days. This week we swing by some superhero news, look at how solar panels might shape up in the future, explore a Lego forest and see how to grab dark matter just using some household gold and strands of DNA. Not only that, we discover how the sun likes to celebrate the fourth of July with its own firework display. This is alt-week
Universe expansion: dark energy's out, anti-gravity's in, matter and antimatter still can't get along
Dark energy, we barely knew you, but before we ever found out if you were, in fact, the invisible hand pushing the cosmos apart, an Italian scientist ginned up a new theory that has anti-gravity doing the Yoko Ono to the universe's merry band of galaxies. Massimo Villata's theory assumes that both matter and antimatter have positive mass and energy density, which gets particles attracting particles and antiparticles attracting antiparticles through the force of gravity. To give dark matter the heave-ho from the galactic expansion equation, Villata supposes that the theory of general relativity applies in reverse to antimatter particles to create anti-gravity. And just as gravity pulls particles together, anti-gravity shoves them apart -- giving the universe its burgeoning waistline, no clown, king, or colonel required.
Visualized: world's largest neutrino observatory rivals Guatemala sinkhole
Without question, one of the images from 2010 will be the insane, almost incomprehensible sinkhole that emerged in Guatemala earlier this year, but this particular shot from the South Pole does an outstanding job of vying for equal attention. Coming directly from the University of Wisconsin-Madison, this is a look into the planet's largest neutrino observatory, which was just completed after half a decade of work with $279 million. The goal? To detect "subatomic particles traveling near the speed of light," and when you have an ice-bound telescope that encompasses a cubic kilometer of Antarctic ice, well... you've high hopes for success. Will this pipe into the underworld finally lead us to understanding Dark Matter? Will century-old mysteries of the universe finally have answers? Even if not, we're envisioning a heck of an entry fee when it's converted into the world's longest firehouse pole and marketed to affluent tourists who make the trip down.
