The touchdown that shook the Earth
The touchdown that shook the Earth.
The touchdown that shook the Earth.
Author: Robert Zimmerman
The touchdown that shook the Earth
New results from the Sloan Digital Sky Survey
From the second press conference at the AAS meeting today, results from the Sloan Digital Sky Survey, which has been surveying the sky in incredible detail over the past eleven years:
- The largest digital color image of the heavens, covering one third of the sky, imaging a half a billion stars and galaxies. Despite looking the sky in wide-field view, the data also has incredible close-up detail. This has and will continue to provide astronomers a precise baseline reference for future research.
- A 3D reconstruction of the local galactic neighborhood, showing the three dimensional position of the visible galaxies within a billion light years. They plan to use the new Sloan color image above to further extend this 3D reconstruction out to seven billion light years.
- The largest map of the Milky Way’s outer regions, showing the streams of stars captured from other galaxies, absorbed in the past galactic mergers that formed the Milky Way.
All this data will be available for anyone to dig around in.
Hollywood’s repeated hateful attacks on the right
And they say the right should tone it down? A list of Hollywood’s many hateful attacks on the right.
And they say the right should tone it down? A list of Hollywood’s many hateful attacks on the right.
A partial list of incidents where the press blamed the right incorrectly
So, who should tone it down? A list of violent incidents which the press tried to blame the right, and was completely wrong.
So, who should tone it down? A list of violent incidents which the press tried to blame the right, and was completely wrong.
New discoveries by Planck
From the first press conference at the AAS meeting today, focused on recent discoveries from the European space telescope Planck:
- has identified 10,000 cold spots in Milky Way, all believed to be places where stars will soon begin to form. They range widely in size, and are from 30 to 10,000 light years from us.
- Planck’s all sky survey has found 189 giant galaxy clusters, 20 of which are newly discovered. “The largest gravitationally bound objects in the universe.” Very hot, filled with hot gas.
Media Pivots To Blame Gun Laws, Sloppy Reporting, Punditry Ensues
Is this toning down the rhetoric? Media pivots to blame gun laws, sloppy reporting ensues.
Is this toning down the rhetoric? Media pivots to blame gun laws, sloppy reporting ensues.
Eruptions from Krakatau have forced the evacuation of tens of thousands residents
The Krakatau volcano in Indonesia has become active, forcing the evacuation of tens of thousands residents.
The Krakatau volcano in Indonesia has become active, forcing the evacuation of tens of thousands residents.
Pure McCarthyism
A collection of death threats to Sarah Palin on Twitter
So we need to tone down the rhetoric, eh? How about this collection of death threats issued by Twitter users against Sarah Palin?
It appears that youtube removed the video. However, you can see all the screenshots of all the threats here, and the video has been reposted here.
So we need to tone down the rhetoric, eh? How about this collection of death threats issued by Twitter users against Sarah Palin?
It appears that youtube removed the video. However, you can see all the screenshots of all the threats here, and the video has been reposted here.
Russia’s plans in space for 2011
The bright outlook in 2011 for Russia’s space industry.
The bright outlook in 2011 for Russia’s space industry.
Nelson suggests NASA might not get third shuttle flight
Not so good news: Nelson suggests NASA might not get a third shuttle flight.
Not so good news: Nelson suggests NASA might not get a third shuttle flight.
NASA expands work to boost tank strength
Good news: NASA decides to do more to strengthen the shuttle’s external tank.
Good news: NASA decides to do more to strengthen the shuttle’s external tank.
“We’re better than this. We must do better.”
Fermi detects beams of antimatter produced above thunderstorms on Earth
More from the AAS meeting: The Fermi Gamma-Ray Space Telescope has detected beams of antimatter produced above Earth’s thunderstorms. Key quote:
Scientists think the antimatter particles were formed in a terrestrial gamma-ray flash, a brief burst produced inside thunderstorms and shown to be associated with lightning. It is estimated that about 500 such flashes occur daily worldwide, but most go undetected. . . . The spacecraft was located immediately above a thunderstorm for most of the observed terrestrial gamma-ray flashes. But, in four cases, storms were far from Fermi. In addition, lightning-generated radio signals detected by a global monitoring network indicated the only lightning at the time was hundreds or more miles away. During one flash, which occurred on Dec. 14, 2009, Fermi was located over Egypt. But the active storm was in Zambia, some 4,500 kilometers (2,800 miles) to the south.
More from the AAS meeting: The Fermi Gamma-Ray Space Telescope has detected beams of antimatter produced above Earth’s thunderstorms. Key quote:
Scientists think the antimatter particles were formed in a terrestrial gamma-ray flash, a brief burst produced inside thunderstorms and shown to be associated with lightning. It is estimated that about 500 such flashes occur daily worldwide, but most go undetected. . . . The spacecraft was located immediately above a thunderstorm for most of the observed terrestrial gamma-ray flashes. But, in four cases, storms were far from Fermi. In addition, lightning-generated radio signals detected by a global monitoring network indicated the only lightning at the time was hundreds or more miles away. During one flash, which occurred on Dec. 14, 2009, Fermi was located over Egypt. But the active storm was in Zambia, some 4,500 kilometers (2,800 miles) to the south.
My Blackberry is not working
Bigelow and his international customers
Who says there’s a lack of customers for private space? Clark Lindsay, with the help of Trent Waddington, provides a list of the six nations that have signed a deal with Bigelow Aerospace to buy space on the company’s privately-built space stations.
Who says there’s a lack of customers for private space? Clark Lindsay, with the help of Trent Waddington, provides a list of the six nations that have signed a deal with Bigelow Aerospace to buy space on the company’s privately-built space stations.
How the left blogosphere has toned down the rhetoric
This is how the left blogosphere has decided to tone down the rhetoric: The Left puts a bullseye on the right.
This is how the left blogosphere has decided to tone down the rhetoric: The Left puts a bullseye on the right.
Preliminary findings suggest that the Arkansas birds died from impact trauma
Preliminary findings from the USGS National Wildlife Health Center suggest that the mass bird die-off that occurred in Arkansas was from impact trauma. Key quote:
The State concluded that such trauma was probably a result of the birds being startled by loud noises on the night of Dec. 31, arousing them and causing them to fly into objects such as houses or trees. Scientists at the USGS NWHC performed necropsies—the animal version of an autopsy—on the birds and found internal hemorrhaging, while the pesticide tests they conducted were negative. Results from further laboratory tests are expected to be completed in 2-3 weeks.
Preliminary findings from the USGS National Wildlife Health Center suggest that the mass bird die-off that occurred in Arkansas was from impact trauma. Key quote:
The State concluded that such trauma was probably a result of the birds being startled by loud noises on the night of Dec. 31, arousing them and causing them to fly into objects such as houses or trees. Scientists at the USGS NWHC performed necropsies—the animal version of an autopsy—on the birds and found internal hemorrhaging, while the pesticide tests they conducted were negative. Results from further laboratory tests are expected to be completed in 2-3 weeks.
Hanny’s Voorwerp: evidence of a quasar that has turned off
Hanny’s Voorwerp: a strange object near a galaxy that has baffled astronomers is now seen as a light echo from when the galaxy’s central quasar was still active. More importantly, this is evidence that the quasar went quiescent sometime in the last 70,000 to 200,000 years. For a quasar to turn off so quickly is a surprise for astronomers.
Hanny’s Voorwerp: a strange object near a galaxy that has baffled astronomers is now seen as a light echo from when the galaxy’s central quasar was still active. More importantly, this is evidence that the quasar went quiescent sometime in the last 70,000 to 200,000 years. For a quasar to turn off so quickly is a surprise for astronomers.
Electric cars are wonderful — except no ones buying
What does this story really tell us? Electric cars are wonderful — except that the dealer hasn’t sold any.
What does this story really tell us? Electric cars are wonderful — except that the dealer hasn’t sold any.
Kepler’s most recent discovery: A rocky Earthlike planet!
Bumped. Scroll down for updates!
From the abstract of Geoffrey Marcy’s talk today at 6:30 pm (Eastern) at this week’s meeting in Seattle of the American Astronomical Society:
The NASA Kepler Mission has discovered over 700 candidate planets, with most having diameters less than 5 times that of Earth and some as small as that of Earth. One planet has a radius, mass, and density in a new domain having no counterpart in our Solar System, opening a new chapter in planetary science. [emphasis mine]
A press conference is scheduled for 11 am (Eastern). Stay tuned!
Update I. A NASA press release just made public says that Kepler has discovered a rocky planet only 1.4 times the size of the Earth.
Kepler 10b [is] a rocky planet with a mass 4.6 times that of Earth and with an average density of 8.8 grams per cubic centimeter — similar to that of an iron dumbbell.
The press conference is ongoing, but the Kepler results are still to come.
Update II. The star the planet orbits, Kepler 10, is similar to our Sun in mass and size, but older, about 8 billion years old, and is 560 light years away. Kepler 10 is also a relatively bright star in the Kepler field of view, about 11 magnitude.
The planet’s orbit itself is only 8.4 days long. Its density, 8.8 grams per cubic centimeter, is 8.8 times greater than Earth’s. This data, based on all planet models, also suggests that the planet should be a rocky planet like the Earth, though heavier and larger with a surface gravity twice that of Earth.
Since the planet orbits so close to its sun, it is a scorched world, very hot. The scientists expect that it has no atmosphere. It is also probably tidally locked, with one side always facing its Sun.
Update III: Geoffrey Marcy, one of the world’s premier exoplanet scientists, is now commenting on these Kepler results, saying he considers this discovery “among the most profound discoveries in human history.”
Update IV: In answer to a press question, the scientists speculated that the planet might have formed as a gas giant farther from the star, then migrated inward and had its gas atmosphere stripped away. No one knows yet if this is true however.
Studies of further transits might learn more about the planet, such as the temperatures between its two hemispheres. As the planet orbits the star and its illuminated side comes into view, they can see the change in temperature and thus track it. Right now they think the sunlight side could be as hot as 2500 degrees Fahrenheit.
If you want to watch the press conference for yourself, they will be posting the video here.
Three to four Billion Barrels of Oil Assessed in North Dakota and Montana
Black gold! Three to four billion barrels of oil — 25 times more than previously predicted — are now thought to lie under certain geological formations in North Dakota and Montana.
Black gold! Three to four billion barrels of oil — 25 times more than previously predicted — are now thought to lie under certain geological formations in North Dakota and Montana.
The progressive “climate of hate:” An illustrated primer, 2000-2010
Want to tone down the rhetoric? Maybe the left should look at itself: The progressive “climate of hate:” An illustrated primer, 2000-2010.
Want to tone down the rhetoric? Maybe the left should look at itself: The progressive “climate of hate:” An illustrated primer, 2000-2010.
The Nonsense, and Danger, in Blaming Sarah Palin
Space flight by Giffords’ husband may be in doubt
The shooting in Tucson might cause NASA to drop Congresswoman Giffords’ husband as commander of Endeavour’s last mission this spring.
The shooting in Tucson might cause NASA to drop Congresswoman Giffords’ husband as commander of Endeavour’s last mission this spring.
Peter Kogler computer animation in museum
a Colossal Failure of Journalism
Russian scientists about to drill into Lake Vostok
Russian scientists are about to drill into Lake Vostok, a lake buried for the last 14 million years beneath the almost two and a half mile thick Antarctic icecap.
Russian scientists are about to drill into Lake Vostok, a lake buried for the last 14 million years beneath the almost two and a half mile thick Antarctic icecap.
A look at the U.S. government’s planned budget for climate research
The next time someone begins ranting about how the money from “big oil” is used to attack the science of global warming, tell them to take a look at this post, which outlines in detail the more than $2 billion that the U.S. government plans to spend on climate change research in 2011 alone (too much of which is unfortunately used by partisans like James Hansen to try to prove the Earth is warming).
The next time someone begins ranting about how the money from “big oil” is used to attack the science of global warming, tell them to take a look at this post, which outlines in detail the more than $2 billion that the U.S. government plans to spend on climate change research in 2011 alone (too much of which is unfortunately used by partisans like James Hansen to try to prove the Earth is warming).
The Tucson shootings
Here are two links that I think are worth reading in connection with the aftermath of yesterday’s tragic shootings in Tucson:
Two sicknesses on display in Arizona.
Disgusting partisanship on display after shooting.
Above all, these murders are horrible and a terrible tragedy. For anyone from either party to try to make political gain from them is beyond despicable.
I should also note that, unlike most Islamic terrorists attacks where either no one in the Muslim community protests while many Muslim leaders express joy or agreement with the violence, I can find no one who is happy about yesterday’s murders. The general response from across the American political spectrum is horror and agony. Such things are wrong and should not happen. It is this distinction that separates Western culture from modern Islam. Until the Islamic community finally stands up to its medieval bullies, I will continue to consider it a threat to civilization and freedom.