Maria Kawnine

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The peculiar behavior of this group of supermassive black holes could shed light on the formation of the universe

Using the Giant Metrewave Radio Telescope (GMRT) in India, the researchers discovered a group of supermassive black holes occupying the centers of ancient galaxies — and they're all spitting out their jets in the same direction.<p>Their findings are detailed in a study published recently in the …

Universe

Gravitational waves explained

A century after Albert Einstein rewrote our understanding of space and time, physicists have confirmed one of the most elusive predictions of his …

LIGO

How the expansion of the universe is affecting galactic speeds

Warp speed galaxies come up when I talk about the expansion of the Universe.<p>Perhaps it's dark energy acceleration, or the earliest inflationary period of the Universe when EVERYTHING expanded faster than the speed of light.<p>Imagine our expanding Universe. It's not an explosion from a specific place, …

Universe

Black hole collisions evade detection

Supermassive black hole duos are awfully quiet. Searches for spacetime ripples radiating away from these spiraling monsters are coming up empty, a …

Black Holes

Two Black Holes are About to Smash Into Each Other

Three and a half billion light years away in the Virgo constellation, two supermassive black holes are on the verge of smacking into one another. In …

India's Mars orbiter captures beautiful 3D images of the red planet

The Indian Space Research Organisation has released a series of beautiful images taken by the country's Mangalyaan Mars Orbiter. The images reveal striking details of the Ophir Chasma, a canyon that spans about 186 miles of the planet’s surface.<p>(Indian Space Research Organisation)<p>The orbiter marks …

Mars Orbiter

See Venus and Jupiter pass right by each other tonight — without a telescope

Tonight, after the sun sets, look west to see a cool astronomical phenomenon: the two brightest planets, Venus and Jupiter, will seemingly collide in the night sky.<p>Of course, the planets aren't actually hitting each other — in reality, they're hundreds of millions miles apart. But from our vantage …

Astronomy

New Study Finds Earth-Like Planets Orbiting Ancient Stars Twice As Old As The Sun

Some of the most compelling discoveries in space involve finding earth-like planets that could potentially harbor life as old (or older) than the …

Universe

How Was the Sun Formed?

In a wide expanse of space, gravity drew dust and gas together to create the young solar system. The sun formed first from the vast material, with …

Universe

First Color Movies Of Pluto And Its Biggest Moon Are Pretty Spectacular

There's not much in the way of plot, and the images are badly pixelated. But two new videos from NASA's New Horizons mission are thrilling anyway. The brief animations--the mission's first color movies--show the complex "orbital dance" of Pluto and its biggest moon, Charon.<p>One of the videos is …

Solar System

Donuts, math, and superdense teleportation of quantum information

Putting a hole in the center of the donut–a mid-nineteenth-century invention–allows the deep-fried pastry to cook evenly, inside and out. As it turns …

Do We Live In A Hologram? It's More Likely Than You Might Think

Everything in our universe might be a lot flatter than it seems, at least, if you do the math.<p>If you’ve got a credit card in your wallet that has one of those little 3D holograms on it — a two-dimensional image that uses some tricks of light to appear three-dimensional — you can get a sense of how …

Physics

Black Holes: Facts, Theory & Definition

Black holes are some of the strangest and most fascinating objects found in outer space. They are objects of extreme density, with such strong …

Top 10 Hubble Photos - Photo Gallery

NASA; ESA; F. PARESCE, INAF-IASF, BOLOGNA, ITALY; R. O’CONNELL, UNIVERSITY OF VIRGINIA;<br>WIDE FIELD CAMERA 3 SCIENCE OVERSIGHT COMMITTEE<p>10<b>Cosmic Fireworks</b> Sparkling with energy, a cluster of young stars lights up a cavity in the roiling dust of the Tarantula Nebula. For Zoltan Levay, charged with …

How It Works: Death By Black Hole

A quantum quandary<p>As you fall feet first across an event horizon—the point where nothing can escape the black hole’s gravitational pull—you don’t feel anything change. But eventually, gravity is so much stronger at your feet than your head that you’re stretched apart, like Play-Doh, until you snap. …

Distant planet has four suns

Were it possible to see the skies from this world, the four parent stars would look like one small sun and two very bright stars visible in the …

Google Maps: Space and UFO Fans Can Now Take a Virtual Tour of Mars and the Moon

Fans of space, UFOs, astronomy and Google Earth satellite photos, rejoice! Google has expanded its Google Maps software to include the option to go …

Desktop-sized laser supercomputers could be coming by 2020

Small, eco-friendly optical supercomputers may soon be crunching quadrillions of calculations per second (exaflops) if a company called Optalysys has its way. It claims to be months away from demonstrating a prototype optical computer that will run at 346 gigaflops to start with -- not as fast as …

Big Pic: A Sound System That's Loud Enough To Kill

Toot toot<p>This looks a bit like a giant ear canal, but in a way, it's the opposite. It's the largest horn in the most powerful sound system in Europe. The system's maximum output, according to the European Space Agency, would kill any human exposed to it.<p>The horn is part of the European Space …

Scientists Baffled by Mysterious Force Tossing Stars Out of Our Galaxy

Something is hitting stars in our Milky Way galaxy with such force that they are reaching the million-plus mile-per-hour velocity needed to break …

Universe

ScienceCasts: A Tetrad of Lunar Eclipses

One reason why Earth is the perfect place to live - Futurity

Part of the reason why Earth has become neither sweltering like Venus nor frigid like Mars is because our planet has a built-in carbon dioxide …

Light painting lets you see electromagnetic fields

APOD: The Antennae Galaxies in Collision (2014 Mar 16) Image Credit: Hubble Legacy Archive, NASA, ESA; Processing & Copyright: Davide Coverta http://apod.nasa.gov/apod/ap140316.html Explanation: Two galaxies are squaring off in Corvus and here are the latest pictures. When two galaxies collide, the stars that compose them usually do not. That's because galaxies are mostly empty space and, however bright, stars only take up only a small amount of that space. During the slow, hundred million year collision, one galaxy can still rip the other apart gravitationally, and dust and gas common to both galaxies does collide. In this clash of the titans, dark dust pillars mark massive molecular clouds are being compressed during the galactic encounter, causing the rapid birth of millions of stars, some of which are gravitationally bound together in massive star clusters. http://hla.stsci.edu/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=140316 #APOD

APOD: Solargraphy Analemmas (2014 Mar 20) Image Credit & Copyright: Maciej Zapiór and Lukasz Fajfrowski http://apod.nasa.gov/apod/ap140320.html Explanation: Today is the equinox. The Sun crosses the celestial equator heading north at 16:57 UT, marking the northern hemisphere's first day of spring. To celebrate, consider this remarkable image following the Sun's yearly trek through planet Earth's sky, the first analemmas exposed every day through the technique of solargraphy. In fact, three analemma curves were captured using a cylindrical pinhole camera by daily making three, separate, one minute long exposures for a year, from March 1, 2013 to March 1, 2014, on a single piece of black and white photographic paper. The well-planned daily exposures began at 10:30, 12:00, and 13:30, CET from a balcony looking south from the Kozanów district in Wroclaw, Poland. That year's two equinoxes on March 20 and September 22 correspond to the mid-points, not the cross-over points, along the figure-8 shaped curves. Apparent gaps in the curves are due to cloudy days. Two solid lines at the lower left were both caused by a timer switch failure that left the pinhole shutter open. http://analemma.pl/english-version Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=140320 #APOD

Gravitational Waves: Einstein Was Right, Again, Maybe

Cosmologists hope for a field-rocking announcement next week.<p>What's the latest cosmology gossip? According to the Guardian, the field is awash with rumors that next week, American scientists will announce the detection of gravitational waves: incredibly small ripples carrying energy across the void …

Quietly, Regulus ushers in springtime

Regulus, brightest star in Leo the Lion, is now rising in the east after sunset. You might not notice it, but stargazers know that, when Regulus …

'Waves' detected on Titan moon’s lakes

<b>Scientists believe they have detected the first liquid waves on the surface of another world.</b><p>The signature of isolated ripples was observed in a sea called Punga Mare on the surface of Saturn's moon Titan.<p>However, these seas are filled not with water, but with hydrocarbons like methane and …

Astronomy