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Cosmology Astrophysics Astronomy
Latest Activity: on Wednesday
Cosmology - Astrophysics - Astronomy
Hubble Wallpaper - Awesome Hubble Images
Started by May the Big Bang RIP. Last reply by May the Big Bang RIP Jul 23, 2017.
Started by Mrs.B. Last reply by Mrs.B Apr 9, 2016.
Started by Davy. Last reply by Onyango Makagutu Mar 8, 2016.
Started by Davy Oct 3, 2013.
Started by Davy. Last reply by Davy Aug 15, 2013.
The Last Goodbye
Ask Ethan: Why Did Light Arrive 1.7 Seconds After Gravitational Waves In The Neutron Star Merger?
Five Discoveries In Fundamental Physics That Came As Total Surprises
Even while the world suffers, investing in science is non-negotiable (Synopsis)
Merging Neutron Stars Deliver Deathblow To Dark Matter And Dark Energy Alternatives (Synopsis)
Seth MacFarlane is producing a new version of “Cosmos,” the 1980 mini-series from Carl Sagan, for Fox.
On Friday the Fox network is to announce that it has ordered a 13-episode series, “Cosmos: A Space-Time Odyssey,” expected to be broadcast in 2013. As part of a creative team that includes Ann Druyan, Sagan’s widow and a collaborator on the original “Cosmos,” one of the executive producers is Seth MacFarlane, the creator, producer, co-star and animating spirit of “Family Guy,” the bawdy and irreverent Fox cartoon sitcom.
Yet behind a comic sensibility that is sometimes provocative and sometimes puerile, Mr. MacFarlane is a committed fan of the first “Cosmos” who laments a modern society that he says has lost its fascination with science.
“We’re obsessed with angels and vampires and whatnot,” Mr. MacFarlane, 37, said in a telephone interview, “when there are many more exciting and very real and much more spectacular things to be excited about, that are right in our own planetary backyard.”
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AUGUST 8, 2011 | THE ONION ISSUE 47•32
PASADENA, CA—Groundbreaking new findings announced Monday suggest the record-setting heat wave plaguing much of the United States may be due to radiation emitted from an enormous star located in the center of the solar system.
Scientists believe the star, which they have named G2V65, may in fact be the same bright yellow orb seen arcing over the sky day after day, and given its extreme heat and proximity to Earth, it is likely not only to have caused the heat wave, but to be responsible for every warm day in human history.
"Our measurements indicate the massive amount of energy this thing gives off is able to travel 93 million miles and reach our planet is as little as eight and a half minutes," said Professor Mitch Kivens, an astronomer at the California Institute of Technology. "While we can't see them, we're fairly certain these infrared rays strike Earth's surface, become trapped by the atmosphere, and just heat everything up like a great big oven."
"We originally thought that if this star was producing temperatures of 100-plus in the South and Midwest, it must be at least 100 degrees itself," Kivens added. "But it turns out it's far, far hotter than that, with a surface temperature of nearly 10,900 degrees Fahrenheit."
Kivens and his CalTech colleagues said this intense radiation, which results from constant nuclear reactions converting hydrogen to helium in the star's core, could also account for why the orb in the sky is extremely bright and difficult to stare at directly.
While scientists initially assumed the heat and luminescence of the star must make it the largest in the universe—a theory lent credence by the star appearing much bigger than other objects in the sky—they said the data actually appear to refute such a notion.
"Apparently it's gigantic simply because it's closer to us than any other star," Kivens said. "Which would also account for why we feel this particular star's heat during the day but are not warmed by the tiny blinking stars we see at night."
"It's interesting stuff," he added.
(read more here)
Not one, but two spiral galaxies
Not one, but two spiral galaxies make up NGC 3314. In the foreground, one galaxy appears face-on to us. The glow of the background galaxy brings out the dark swirls of interstellar dust in the foreground galaxy, a rare opportunity to explore the distribution of a galaxy's dust. NGC 3314 lies about 140 million light-years (background galaxy) and 117 million light-years (foreground galaxy) away in the multi-headed constellation Hydra. [View all images]
This is a false-color image of a giant, raging storm on Saturn, released by NASA. The hyperstorm, the Great White Spot, is nearly as wide as Earth — about 6,200 miles (10,000 kilometers). It has a tail of white clouds that encircles all of Saturn.
These false-color images from NASA's Cassini spacecraft chronicle a day in the life of a huge storm that developed from a small spot that appeared 12 weeks earlier in Saturn's northern mid-latitudes.
Uploaded by asnavas on Apr 28, 2010
The HiRISE camera onboard the Mars Reconnaissance Orbiter is the most powerful one of its kind ever sent to another planet. Its high resolution allows us to see Marslike never before, and helps other missions choose a safe spot to land for future exploration. Thousands of images are available online at: uahirise.org.NASAs Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASAs ScienceMission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by BallAerospace & Technologies Corp. and is operated by the University of Arizona.Reading the Geologic RecordOne particularly interesting aspect of the layers in this image is their repetitive nature.http://www.uahirise.org/ESP_017013_1890Yardangs within a Large CraterYardangs form roughly parallel with the direction of the prevailing wind.http://www.uahirise.org/PSP_001545_1885Gullied Trough in Noachis TerraGullies are proposed to form at locations determined by the availability of a forming liquid.http://www.uahirise.org/PSP_001691_1320
Simultaneous Sunset And Moonset: NASA's Image Of The Day
That's also a lot of potential UFO's =)
I read once that if we ever used space for battles it would create so much junk we'd never get off the planet again. =(
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