The debate over arsenic-based life continues
The debate over arsenic-based life continues.
The debate over arsenic-based life continues.
The debate over arsenic-based life continues.
Turf war: SpaceX has sued a NASA safety expert (with ties to the Ares rocket program) who questioned the safety of the Falcon 9 rocket.
The Pan-STARRS Telescope has found a comet that might provide us all a show in 2013.
An update from Messenger.
An idiot speaks: Congresswoman Sheila Jackson Lee (D-Texas) yesterday equated Islamic terrorists with “Christian militants” in the United States.
Since 9/11 Islamic terrorists have carried out more than 17,000 attacks, killing tens of thousands. In that same time, you could count on one hand the number of attacks by “Christian militants,” if that many. For Representative Lee, it seems it is hard for her to tell the difference.
The IPCC is in trouble again for using a Greenpeace activist to help write one of its recent energy reports.
Some pigs win, some lose: Republicans refuse to cut farm and ethanol subsidies, but cut international food aid instead.
The cowardice of politicians from both parties to honestly face the federal deficit problem sadly continues.
The National Speleological Society has responded in strong opposition [pdf] to the demand by the Center for Biological Diversity that all caves on public land be closed to protect bats.
Calling for blanket cave closures across the U.S. is unnecessary, unenforceable, and counterproductive. While cave closures on some federal lands have been implemented, particularly in the eastern U. S., there is no evidence that this action has done anything to contain [white nose syndrome] (WNS). Most people working on WNS understand that bat to bat transmission is overwhelmingly the primary method of transmission, and administrative closing of caves and mines does nothing to prevent that.
Vandals who spray-painted an historic cave in Oregon in April have been caught. A video of the vandalism can be seen here.
Busybodies forever at work: San Francisco’s Animal Control and Welfare Commission has recommended the city ban the sale of goldfish, tropical fish and guppies in its borders.
How pasta became the world’s favourite food.
This ain’t good. One of the reasons ESA controllers recently put the comet probe Rosetta into hibernation for two and a half years was in order to buy time to solve a serious technical problem.
Mission managers said the hibernation will permit Rosetta to rest its four reaction wheels, two of which have shown signs of degradation. The satellite needs three to function, and one of the two problem wheels will be used only as a spare when the satellite is awakened in January 2014 in preparation for its approach to a comet.
Iran launched its own home-built satellite into orbit today, according to its state-run news service.
During a tanking test of the space shuttle Atlantis today a valve to the main engines leaked, requiring replacement and raising questions whether the July 8 launch date can be met.
Second X-51 hypersonic flight crashes prematurely.
After what the US Air Force described as a ‘flawless’ flight to the launch point aboard a Boeing B-52 mothership, the X-51 was successfully boosted to Mach 5.0 by a rocket booster. The Pratt & Whitney Rocketdyne scramjet engine successfully ignited using its initial fuel, ethylene. During the immediate transition to JP-7, the conventional fuel that makes the X-51 unique, an inlet unstart occurred. A subsequent attempt to restart and reorient to optimal conditions was unsuccessful.
An evening pause: As it appears these events are likely going to become less and less likely, let’s enjoy them while we can.
Note that the height of this eruption was almost twenty times the diameter of the Earth.
It’s all about power and control, not safety: The TSA has decided to block any further private companies from providing airport screening.
Ten congressmen (from both parties) and a law professor are suing the Obama administration to stop the war in Libya.
SpaceShipTwo completes two glide test flights within twenty-four hours.
An X-ray deep field image taken over a six week period by Chandra had found that massive black holes are common in early universe.
These results imply that between 30% and 100% of the distant galaxies contain growing supermassive black holes. Extrapolating these results from the relatively small field of view that was observed to the full sky, there are at least 30 million supermassive black holes in the early Universe. This is a factor of 10,000 larger than the estimated number of quasars in the early Universe.
The progenitor star that produced the May supernovae in the Whirlpool Galaxy (also known as M51) has been identified, and it isn’t what scientists predicted.
In a preprint paper published today on the Los Alamos astro-ph website, astronomers describe the star that exploded as a yellow supergiant, not a red supergiant or Wolf-Rayet star, as predicted by the theory explaining this particular type of supernova. Moreover, though theory also favors the star being a member of a binary system, the progenitor of 2011dh appears to be a lone star, not even a member of a cluster.
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The world’s oldest functioning light bulb: 110 years old.
Though some progress has been made, the negotiations over the debt limit and the budget still appear deadlocked.
The pork goes on: The shuttle’s end has still left NASA with a half billion dollar pension bill.
The end of the Cedar Revolution: The terrorist group Hezbollah took over Lebanon’s government this week.
Getting away with murder: An internal probe today cleared five SWAT-raid officers in Arizona for the killing of ex-Marine Jose Guerena.