This little video, brought to us by NASA Goddard, shows off all of the galaxies we're currently aware of, in one swirling, fluid shot. It's like the visualizer your freshman college roommate used to stare at on his laptop while listening to Sigur Ros, under the influence of who knows what--but for real.
By Katie PeekPosted 12.01.2010 at 2:06 pm 8 Comments
In a paper published today in the journal Nature, astronomers from Yale and Harvard universities have found evidence for a bunch of small red dwarf stars in eight nearby galaxies. The result affects astronomers' pictures of how stars form, how galaxies evolve, and perhaps even how much dark matter is out there.
Astronomers using the Hubble Space Telescope have made one of the most detailed dark matter maps ever, taking advantage of the dark matter’s own gravitational effects to bring it into the light.
The map suggests massive galaxy clusters may have formed earlier than expected, before dark energy stunted their growth, according to the Space Telescope Science Institute.
Now that scientists are done making a map of the cosmic microwave background, they can use that detailed map to find hidden treasures from the ancient universe.
Using the South Pole Telescope, they've just found a mother lode: the biggest galaxy cluster ever seen, harboring about 800 trillion suns inside hundreds of galaxies.
By Jason ZigelbaumPosted 08.11.2010 at 12:45 pm 2 Comments
The ESO’s VISTA telescope has released a magnificent picture of the Tarantula Nebula in our neighboring galaxy, the Large Magellanic Cloud. The image was taken at the start of VISTA’s Magellanic Cloud survey, covering 184 square degrees of sky (about a thousand times the visible surface area of the moon).
The survey will provide a detailed study of star formation and three-dimensional geometry of our nearby galaxies in the Magellanic system.
NASA's Great Observatories -- Chandra, Spitzer, and Hubble -- have collaborated on this magnificent composite image of the Antennae Galaxies, a pair of galaxies that are merging with each other in a 100-million-year-long fireworks display.
It took mankind centuries to map the Earth, and even with all of the indexed knowledge in the world behind it Google can't always figure out exactly where the nearest Pinkberry is. So one might imagine how even with the amazing leaps in technology over past decades, mapping the universe is no small undertaking. But a new technique could allow cosmic cartographers to map 500 times as much of the universal landscape as they have thus far at a fraction of the cost.
A 2-million-mile-per-hour collision in a galaxy cluster 54 million light years away has left us with this amazing image captured by NASA’s Galaxy Evolution Explorer (GALEX) observatory. But aside from being cosmically stunning, the collision and ongoing observations of the star-spangled tail it produced should give astronomers a better grasp of the mechanisms behind star formation.
New photos from the Hubble Space Telescope show once again the value of having a decades-old orbiting observatory. After examining identical photos taken 10 years apart, scientists measured the speeds of individual stars in a distant nebula — a feat akin to seeing the apparent thickness of a human hair 500 miles away.
The stars were not moving in the ways scientists expected, so the finding could illuminate star-formation theories, the researchers say.