Volunteers wanted to search for exoplanets
Want to find your very own exoplanet? Volunteers wanted!
Want to find your very own exoplanet? Volunteers wanted!
Tag: science
Volunteers wanted to search for exoplanets
Phobos-Grunt due to crash to Earth anytime in the next ten hours
Updated and bumped. An updated prediction from Aerospace now calls for Phobos-Grunt to come down sometime between 9 and 3 pm (Eastern). This puts the U.S. now out of danger, though Europe, South America, Africa, Australia, and the southern half of Asia all remain in the spacecraft’s path.
Watch your heads! Phobos-Grunt is due to crash to Earth anytime in the next ten hours. And unfortunately, this new prediction has it flying over both North America and much of Europe and Africa during that time period.
Updated and bumped. An updated prediction from Aerospace now calls for Phobos-Grunt to come down sometime between 9 and 3 pm (Eastern). This puts the U.S. now out of danger, though Europe, South America, Africa, Australia, and the southern half of Asia all remain in the spacecraft’s path.
Watch your heads! Phobos-Grunt is due to crash to Earth anytime in the next ten hours. And unfortunately, this new prediction has it flying over both North America and much of Europe and Africa during that time period.
Six Small Math Errors That Caused Huge Disasters
It real does pay to learn math when you are in school: Six small math errors that caused huge disasters.
It real does pay to learn math when you are in school: Six small math errors that caused huge disasters.
A totally drug-resistant tuberculosis strain has emerged in India.
Not good: A totally drug-resistant tuberculosis strain has emerged in India.
The discovery makes India the third country in which a completely drug-resistant form of the disease has emerged, following cases documented in Italy in 2007 and Iran in 2009.
Not good: A totally drug-resistant tuberculosis strain has emerged in India.
The discovery makes India the third country in which a completely drug-resistant form of the disease has emerged, following cases documented in Italy in 2007 and Iran in 2009.
Engineers have gone to a back up radio system on Cassini after a primary unit did not respond as expected in late December.
Engineers have gone to a back up radio system on Cassini after a primary unit did not respond as expected in late December.
The cause is still under investigation, but age may be a factor. The spacecraft launched in 1997 and has orbited Saturn since 2004. Cassini completed its prime mission in 2008 and has had two additional mission extensions. This is the first time its ultra-stable oscillator has had an issue.
Engineers have gone to a back up radio system on Cassini after a primary unit did not respond as expected in late December.
The cause is still under investigation, but age may be a factor. The spacecraft launched in 1997 and has orbited Saturn since 2004. Cassini completed its prime mission in 2008 and has had two additional mission extensions. This is the first time its ultra-stable oscillator has had an issue.
So how peripheral was Dipak Das’ work on the health benefits of wine?
So how central was the research of Dipak Das on the health benefits of wine, now that it is under investigation for fraud? Retraction Watch wants to know!
So how central was the research of Dipak Das on the health benefits of wine, now that it is under investigation for fraud? Retraction Watch wants to know!
X-Prize offers $10 million prize for anyone who can build McCoy’s tricorder
Life imitates art: The X-Prize announced today a $10 million prize for anyone who can build McCoy’s tricorder from Star Trek.
The X PRIZE Foundation and Qualcomm Foundation said the prize, announced at the Consumer Electronics Show in Las Vegas, will go to the team that “develops a mobile platform that most accurately diagnoses a set of 15 diseases across 30 consumers in three days,” a release from the the two foundations said. The device must be light enough to be portable, weighing no more than 5 pounds.
Life imitates art: The X-Prize announced today a $10 million prize for anyone who can build McCoy’s tricorder from Star Trek.
The X PRIZE Foundation and Qualcomm Foundation said the prize, announced at the Consumer Electronics Show in Las Vegas, will go to the team that “develops a mobile platform that most accurately diagnoses a set of 15 diseases across 30 consumers in three days,” a release from the the two foundations said. The device must be light enough to be portable, weighing no more than 5 pounds.
The University of Connecticut has found the chief of its biology lab — an expert on the health benefits of drinking wine — guilty of falsifying and fabricating data on more than two dozen papers and grant applications.
More science fraud: The University of Connecticut has found the chief of its biology lab — an expert on the health benefits of drinking wine — guilty of falsifying and fabricating data on more than two dozen papers and grant applications.
A 60,000-page report issued yesterday (you can read a 49-page summary here) by [University of Connecticut Health Center] (UCHC) found [Dipak] Das guilty of 145 counts of fabrication and falsification of data, involving at least 23 papers and 3 grant applications. … UCHC has frozen externally funded research in Das’ lab, and it turned away $890,000 in federal grants while the investigation was underway. The university has also begun proceedings to fire Das.
Just as in the Stapel case in the Netherlands, we have here another example of the science community responding correctly to scientific fraud. Both examples stand in stark contrast to how the climate science community whitewashed the fraud and malfeasance in its own community.
More science fraud: The University of Connecticut has found the chief of its biology lab — an expert on the health benefits of drinking wine — guilty of falsifying and fabricating data on more than two dozen papers and grant applications.
A 60,000-page report issued yesterday (you can read a 49-page summary here) by [University of Connecticut Health Center] (UCHC) found [Dipak] Das guilty of 145 counts of fabrication and falsification of data, involving at least 23 papers and 3 grant applications. … UCHC has frozen externally funded research in Das’ lab, and it turned away $890,000 in federal grants while the investigation was underway. The university has also begun proceedings to fire Das.
Just as in the Stapel case in the Netherlands, we have here another example of the science community responding correctly to scientific fraud. Both examples stand in stark contrast to how the climate science community whitewashed the fraud and malfeasance in its own community.
Looking for Beagle 2
How it’s made – Bubble gum
A solar system in miniature
Kepler finds more planets orbiting double star systems
Kepler has found two more planets orbiting double star systems.
The data also suggests that there will be millions of planets in the galaxy orbiting double stars.
FYI, all this astronomy news is because the American Astronomical Society is having its conference this week in Texas, and today is releasing has what I consider the best news stories.
Kepler has found two more planets orbiting double star systems.
The data also suggests that there will be millions of planets in the galaxy orbiting double stars.
FYI, all this astronomy news is because the American Astronomical Society is having its conference this week in Texas, and today is releasing has what I consider the best news stories.
Astronomers have concluded that the stars in the Milky Way must average at least one planet per star.
Billions and billions! Astronomers have concluded that the stars in the Milky Way must average at least one planet per star. More importantly, the data says the galaxy should have billions of habitable planets.
[According to astronomer Uffe Gråe Jørgensen], a statistical analysis … shows that out of the Milky Way’s 100 billion stars, there are about 10 billion stars with planets in the habitable zone. This means that there may be billions of habitable planets in the Milky Way.
Billions and billions! Astronomers have concluded that the stars in the Milky Way must average at least one planet per star. More importantly, the data says the galaxy should have billions of habitable planets.
[According to astronomer Uffe Gråe Jørgensen], a statistical analysis … shows that out of the Milky Way’s 100 billion stars, there are about 10 billion stars with planets in the habitable zone. This means that there may be billions of habitable planets in the Milky Way.
New data suggests that the crash of two white dwarf stars caused the nearest supernovae in 25 years
New data has found that the crash of two white dwarf stars not only caused the nearest supernova in 25 years, but appear to be the prime cause for these types of supernovae.
The data also says that there are no white dwarf primary systems in the Milky Way that are candidates to go supernova in this way. Thus, we can all sleep easy tonight!
New data has found that the crash of two white dwarf stars not only caused the nearest supernova in 25 years, but appear to be the prime cause for these types of supernovae.
The data also says that there are no white dwarf primary systems in the Milky Way that are candidates to go supernova in this way. Thus, we can all sleep easy tonight!
The most distant supernova discovered so far.
The most distant supernova discovered so far.
SN Primo is the farthest Type Ia supernova whose distance has been confirmed through spectroscopic observations. The supernova was discovered as part of a three-year Hubble program to survey faraway Type Ia supernovae, enabling searches for this special class of stellar explosion at greater distances than previously possible. The remote supernovae will help astronomers determine whether the exploding stars remain dependable distance markers across vast distances of space in an epoch when the cosmos was only one-third its current age of 13.7 billion years.
The most distant supernova discovered so far.
SN Primo is the farthest Type Ia supernova whose distance has been confirmed through spectroscopic observations. The supernova was discovered as part of a three-year Hubble program to survey faraway Type Ia supernovae, enabling searches for this special class of stellar explosion at greater distances than previously possible. The remote supernovae will help astronomers determine whether the exploding stars remain dependable distance markers across vast distances of space in an epoch when the cosmos was only one-third its current age of 13.7 billion years.
The National Radio Astronomy Observatory (NRAO) has renamed the thirty-one year old Very Large Array (VLA) after Karl Jansky, the man who invented radio astronomy.
A fitting honor: The National Radio Astronomy Observatory (NRAO) has renamed the recently upgraded thirty-one year old Very Large Array (VLA) after Karl Jansky, the man who invented radio astronomy.
Karl Guthe Jansky joined Bell Telephone Laboratories in New Jersey in 1928, immediately after receiving his undergraduate degree in physics. He was assigned the task of studying radio waves that interfered with the recently-opened transatlantic radiotelephone service. After designing and building advanced, specialized equipment, he made observations over the entire year of 1932 that allowed him to identify thunderstorms as major sources of radio interference, along with a much weaker, unidentified radio source. Careful study of this “strange hiss-type static” led to the conclusion that the radio waves originated from beyond our Solar System, and indeed came from the center of our Milky Way Galaxy.
His discovery was reported on the front page of the New York Times on May 5, 1933, and published in professional journals. Jansky thus opened an entirely new “window” on the Universe. Astronomers previously had been confined to observing those wavelengths of light that our eyes can see. “This discovery was like suddenly being able to see green light for the first time when we could only see blue before,” said Lo.
A fitting honor: The National Radio Astronomy Observatory (NRAO) has renamed the recently upgraded thirty-one year old Very Large Array (VLA) after Karl Jansky, the man who invented radio astronomy.
Karl Guthe Jansky joined Bell Telephone Laboratories in New Jersey in 1928, immediately after receiving his undergraduate degree in physics. He was assigned the task of studying radio waves that interfered with the recently-opened transatlantic radiotelephone service. After designing and building advanced, specialized equipment, he made observations over the entire year of 1932 that allowed him to identify thunderstorms as major sources of radio interference, along with a much weaker, unidentified radio source. Careful study of this “strange hiss-type static” led to the conclusion that the radio waves originated from beyond our Solar System, and indeed came from the center of our Milky Way Galaxy.
His discovery was reported on the front page of the New York Times on May 5, 1933, and published in professional journals. Jansky thus opened an entirely new “window” on the Universe. Astronomers previously had been confined to observing those wavelengths of light that our eyes can see. “This discovery was like suddenly being able to see green light for the first time when we could only see blue before,” said Lo.
The six weirdest cities people actually live in
A Hubble Space Telescope study of massive galaxies two to three billion years after the Big Bang has challenged the widely accepted theory that major mergers are how galaxies grow
The uncertainty of science: A Hubble Space Telescope study of massive galaxies two to three billion years after the Big Bang has challenged the widely accepted theory that major galaxy mergers are what make galaxies grow.
The uncertainty of science: A Hubble Space Telescope study of massive galaxies two to three billion years after the Big Bang has challenged the widely accepted theory that major galaxy mergers are what make galaxies grow.
Not All Who Wander Are Lost
Fred and Ned, the cats with an astonishing 54 toes between them.
Now for some important news: Fred and Ned, the cats with an astonishing 54 toes between them.
Now for some important news: Fred and Ned, the cats with an astonishing 54 toes between them.
The new rules on naming and describing plants now allow scientists to do so in English instead of Latin.
A victory for English: As of January 1 the new rules for naming and describing plants have allowed scientists to do so in English instead of Latin, and to do so online.
The earlier code, which required botanists to both write diagnoses in Latin and publish only in print journals, made the documentation of new taxa a laborious process.
A victory for English: As of January 1 the new rules for naming and describing plants have allowed scientists to do so in English instead of Latin, and to do so online.
The earlier code, which required botanists to both write diagnoses in Latin and publish only in print journals, made the documentation of new taxa a laborious process.
Studying the Moon by starlight
In a paper published today in the Journal for Geophysical Research, Planets, the science team for Lunar Reconnaissance Orbiter describe how they have used starlight to peer into the permanently shadowed craters of the Moon’s north and south poles. Looking only during the lunar night, they measured the dim albedo of the Moon from reflected starlight. From this very weak signal they were able to cull two interesting facts about these very cold and very dark places.
- The ground at the bottom of these craters is more porous than the surrounding unshadowed terrain.
- There is evidence in the spectroscopy of 1 to 2% water frost in these craters.
Underground again today
Posting will be light today, as I am joining University of Arizona PhD student Sarah Trube and several other Arizona cavers on a cave trip to collect water samples in a southern Arizona cave. This is in connection with research Sarah is doing to analyze the chemistry of cave dripwater and how it leads to the formation of cave speleothems. Moreover, she is tracking water flow and attempting to link it to climate and weather variations over time.
I noticed Sarah’s water collection equipment on my first Tucson-area cave trip back last January. In one case she had attached a tube to the bottom of a stalactite which fed the dripwater into a bottle. In another case she placed glass plates on top of stalagmites to allow the dripwater to drip onto the plate and then evaporate. Last month I joined her on one of her collection trips, where she gathered glass plates for later analysis in the lab. Though the plates had not been in cave more than a few months, you could easily see a thin layer of calcite deposit on their surface.
Below the fold is an image of Sarah gathering dripwater during an earlier trip.
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A fitting memorial
Opportunity has settled into its winter haven.
NASA’s Mars Exploration Rover Opportunity will spend the next few months during the coldest part of Martian winter at Greeley Haven, an outcrop of rock on Mars recently named informally to honor Ronald Greeley, Arizona State University Regents’ professor of planetary geology, who died October 27, 2011.
I met and interviewed Greeley a number of times in writing articles for magazines like Sky & Telescope and Astronomy. For years he was a central figure in the field of planetary geology, and his life effort is one of the prime reasons the United States has dominated this field for most of the past half century, with a fleet of planetary missions presently at Mercury, Mars, Jupiter, Saturn, and Pluto, with many more to come.
The article notes that the International Astronomical Union (IAU) has the job of naming objects in space, and could take years to honor Greeley. I say that if these scientists, the true explorers of Mars, want to name something for him, then they should go ahead, and future generations should honor that choice, regardless of what the IAU says.
New research suggests that a body-snatching parasitic fly might be the culbrit in the decline of the honeybee population in the U.S.
Alien on Earth: New research suggests that a body-snatching parasitic fly might be the culprit in the decline of the honeybee population in the U.S.
The parasitic fly lays eggs in a bee’s abdomen. Several days later, the parasitized bee bumbles out of the hives—often at night—on a solo mission to nowhere. These bees often fly toward light and wind up unable to control their own bodies. After a bee dies, as many as 13 fly larvae crawl out from the bee’s neck. The bees’ behavior seems similar to that of ants that are parasitized—and then decapitated from within—by other fly larvae from the Apocephalus genus.
Alien on Earth: New research suggests that a body-snatching parasitic fly might be the culprit in the decline of the honeybee population in the U.S.
The parasitic fly lays eggs in a bee’s abdomen. Several days later, the parasitized bee bumbles out of the hives—often at night—on a solo mission to nowhere. These bees often fly toward light and wind up unable to control their own bodies. After a bee dies, as many as 13 fly larvae crawl out from the bee’s neck. The bees’ behavior seems similar to that of ants that are parasitized—and then decapitated from within—by other fly larvae from the Apocephalus genus.
Cassini’s top ten images for 2011
The sounds of the stars
What is this stuff?
The uncertainty of science: In this week’s release of images from Mars Reconnaissance Orbiter, the science team posted the image on the right and asked, “What is this stuff?”
Here’s a hypothetical geologic history that might explain this scene: layered sediments were deposited by water or airfall (including volcanic pyroclastics). A crudely polygonal patterned ground was created by stresses in the sediments, and groundwater followed the fractures and deposited minerals that cemented the sediments. This was followed by perhaps billions of years of erosion by the wind, leaving the cemented fractures as high-standing ridges.
Of course, this story is almost certainly incomplete if not totally wrong.
Click here to see the close-up subimage from which I cropped the image on the right.
