The view of Comet Lovejoy from ISS
The view of Comet Lovejoy from ISS. With video.
The view of Comet Lovejoy from ISS. With video.
Tag: science
The view of Comet Lovejoy from ISS
The NASA shuttle simulator for training astronauts is going to at Texas A&M
The NASA shuttle simulator for training astronauts is going to Texas A&M.
Valasek said it won’t be a static display for viewing but a functional flight simulator. Visitors will be able to sit in the seats and cockpit and manually fly a simulated re-entry as the shuttle astronauts did. “When operational again, the SMS will be the centerpiece of many educational, outreach, and research activities for a long time to come,” Valasek said. “And it will be accessible. Until now, 355 astronauts have trained on the Shuttle Motion Simulator and flown on a space shuttle mission. Now the rest of us can experience at least a part of the excitement of space exploration, just the way the astronauts trained for it.”
The simulator will be used in aerospace engineering courses and accessible to all Texas A&M students, staff, and faculty. Spaceflight enthusiasts and fans of technology, whether affiliated with the university or not, will also be able to enjoy it.
Now, this is what an engineering school should be focused on, rather than the skin color of its students.
The NASA shuttle simulator for training astronauts is going to Texas A&M.
Valasek said it won’t be a static display for viewing but a functional flight simulator. Visitors will be able to sit in the seats and cockpit and manually fly a simulated re-entry as the shuttle astronauts did. “When operational again, the SMS will be the centerpiece of many educational, outreach, and research activities for a long time to come,” Valasek said. “And it will be accessible. Until now, 355 astronauts have trained on the Shuttle Motion Simulator and flown on a space shuttle mission. Now the rest of us can experience at least a part of the excitement of space exploration, just the way the astronauts trained for it.”
The simulator will be used in aerospace engineering courses and accessible to all Texas A&M students, staff, and faculty. Spaceflight enthusiasts and fans of technology, whether affiliated with the university or not, will also be able to enjoy it.
Now, this is what an engineering school should be focused on, rather than the skin color of its students.
Bigotry on campus
The newly named “associate dean for equity and inclusion” at the College of Engineering at the University of California, Berkeley, is promising “disruptive progress” in his effort to increase minorities at the school.
The plan [pdf] includes more money for staffing and facilities for the “equity and inclusion” department, plus more money and power for student organizations. Sadly, this is money and facilities that will no longer be available for actual education or research.
» Read more
At last, a close look at Vesta
Giant tsunami-shaped clouds in Alabama
Giant tsunami-shaped clouds in Alabama. With pictures.
Giant tsunami-shaped clouds in Alabama. With pictures.
A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates
Want to read the actual paper, “A Sun-like star with three sub-Neptune exoplanets and two Earth-size candidates,” describing the discovery announced yesterday of two Earth-sized planet? You can download it here.
The paper’s closing paragraph sums the discovery up nicely:
A striking feature of the Kepler-20 planetary system is the presence of Earth-size rocky planet candidates interspersed between volatile-rich sub-Neptunes at smaller and larger orbital semi-major axes, as also seen in Kepler candidate multi-planet systems. Assuming that both [Kepler-20e] and [Kepler-20f] are planets, the distribution of the Kepler-20 planets in orbital order is as follows: Kepler-20b (3.7 days, 1.9 Earth radii), [Kepler-20e] (6.1 days, 0.9 Earth radii), Kepler-20c (10.9 days, 3.1 Earth radii), [Kepler-20f] (19.6 days, 1.0 Earth radii), and Kepler-20d (77.6 days, 2.8 Earth radii). Given the radii and irradiation fluxes of the two Earth-size planet candidates, they would not retain gas envelopes. The first, second, and fourth planets have high densities indicative of solid planets, while the other two planets have low densities requiring significant volatile content. The volatile-rich third planet, Kepler-20c dominates the inner part of the Kepler-20 system, by holding much more mass than the other three inner planets put together. In the Solar System, the terrestrial planets, gas-giants, and ice giants are neatly segregated in regions with increasing distance from the sun. Planet formation theories were developed to retrodict these Solar System composition trends. In the Kepler-20 system, the locations of the low-density sub-Neptunes that are rich in water and/or gas, and the Earth-size planet candidates does not exhibit a clean ordering with orbital period, challenging the conventional planet formation paradigm. In situ assembly may form multi-planet systems with close-in hot-Neptunes and super-Earths, provided the initial protoplanetary disk contained massive amounts of solids (∼ 50–100 Earth masses) within 1AU of the star.
Want to read the actual paper, “A Sun-like star with three sub-Neptune exoplanets and two Earth-size candidates,” describing the discovery announced yesterday of two Earth-sized planet? You can download it here.
The paper’s closing paragraph sums the discovery up nicely:
A striking feature of the Kepler-20 planetary system is the presence of Earth-size rocky planet candidates interspersed between volatile-rich sub-Neptunes at smaller and larger orbital semi-major axes, as also seen in Kepler candidate multi-planet systems. Assuming that both [Kepler-20e] and [Kepler-20f] are planets, the distribution of the Kepler-20 planets in orbital order is as follows: Kepler-20b (3.7 days, 1.9 Earth radii), [Kepler-20e] (6.1 days, 0.9 Earth radii), Kepler-20c (10.9 days, 3.1 Earth radii), [Kepler-20f] (19.6 days, 1.0 Earth radii), and Kepler-20d (77.6 days, 2.8 Earth radii). Given the radii and irradiation fluxes of the two Earth-size planet candidates, they would not retain gas envelopes. The first, second, and fourth planets have high densities indicative of solid planets, while the other two planets have low densities requiring significant volatile content. The volatile-rich third planet, Kepler-20c dominates the inner part of the Kepler-20 system, by holding much more mass than the other three inner planets put together. In the Solar System, the terrestrial planets, gas-giants, and ice giants are neatly segregated in regions with increasing distance from the sun. Planet formation theories were developed to retrodict these Solar System composition trends. In the Kepler-20 system, the locations of the low-density sub-Neptunes that are rich in water and/or gas, and the Earth-size planet candidates does not exhibit a clean ordering with orbital period, challenging the conventional planet formation paradigm. In situ assembly may form multi-planet systems with close-in hot-Neptunes and super-Earths, provided the initial protoplanetary disk contained massive amounts of solids (∼ 50–100 Earth masses) within 1AU of the star.
For as yet unexplained reasons, scientists have been finding isolated colonies of little brown bats — once the most common bat species in the region and the hardest hit by white nose syndrome — surviving and healthy.
Hope for North America’s bats: For as yet unexplained reasons, scientists have been finding isolated colonies of little brown bats — once the most common bat species in the region and the hardest hit by white nose syndrome — surviving and healthy.
In Vermont, biologists have identified 15 colonies in the western part of the state where the numbers of little brown bats, while still far fewer than before white nose appeared, are surviving, said Vermont Fish and Wildlife Biologist Scott Darling. “We visited each and every one of those colonies and to some degree, much to our surprise, they seem to be healthy,” Darling said. “It begged the question, ‘Why are you the lucky ones?'”
Hope for North America’s bats: For as yet unexplained reasons, scientists have been finding isolated colonies of little brown bats — once the most common bat species in the region and the hardest hit by white nose syndrome — surviving and healthy.
In Vermont, biologists have identified 15 colonies in the western part of the state where the numbers of little brown bats, while still far fewer than before white nose appeared, are surviving, said Vermont Fish and Wildlife Biologist Scott Darling. “We visited each and every one of those colonies and to some degree, much to our surprise, they seem to be healthy,” Darling said. “It begged the question, ‘Why are you the lucky ones?'”
First Earth-sized planets found
Big news: The first Earth-sized planets have been found by Kepler.
The two planets, dubbed Kepler-20e and 20f, are the smallest planets found to date. They have diameters of 6,900 miles and 8,200 miles – equivalent to 0.87 times Earth (slightly smaller than Venus) and 1.03 times Earth. These worlds are expected to have rocky compositions, so their masses should be less than 1.7 and 3 times Earth’s.
Both worlds circle Kepler-20: a G-type star slightly cooler than the Sun and located 950 light-years from Earth. (It would take the space shuttle 36 million years to travel to Kepler-20.) Kepler-20e orbits every 6.1 days at a distance of 4.7 million miles. Kepler-20f orbits every 19.6 days at a distance of 10.3 million miles. Due to their tight orbits, they are heated to temperatures of 1,400 degrees Fahrenheit and 800 degrees F.
Once again, this is only the beginning. The announcement of an Earth in the habitable zone is only a matter of months away.
Big news: The first Earth-sized planets have been found by Kepler.
The two planets, dubbed Kepler-20e and 20f, are the smallest planets found to date. They have diameters of 6,900 miles and 8,200 miles – equivalent to 0.87 times Earth (slightly smaller than Venus) and 1.03 times Earth. These worlds are expected to have rocky compositions, so their masses should be less than 1.7 and 3 times Earth’s.
Both worlds circle Kepler-20: a G-type star slightly cooler than the Sun and located 950 light-years from Earth. (It would take the space shuttle 36 million years to travel to Kepler-20.) Kepler-20e orbits every 6.1 days at a distance of 4.7 million miles. Kepler-20f orbits every 19.6 days at a distance of 10.3 million miles. Due to their tight orbits, they are heated to temperatures of 1,400 degrees Fahrenheit and 800 degrees F.
Once again, this is only the beginning. The announcement of an Earth in the habitable zone is only a matter of months away.
Using Hubble astronomers have found evidence that complex molecules lie on the surface of Pluto.
Using Hubble, astronomers have found new evidence that complex molecules, such as hydrocarbons, lie on the surface of Pluto.
Using Hubble, astronomers have found new evidence that complex molecules, such as hydrocarbons, lie on the surface of Pluto.
Scientists have located one of the quarries used by the builders of Stonehenge
Scientists have identified the quarry used by the builders of Stonehenge to build its first circle, 160 miles from the ancient monument.
Scientists have identified the quarry used by the builders of Stonehenge to build its first circle, 160 miles from the ancient monument.
A telescope to go where no telescope has gone before
A new kind of metal in the deep Earth
Former astronaut John Grunsfeld is to take over NASA’s science post from Ed Weiler
Excellent choice: Former astronaut John Grunsfeld has been picked to take over NASA’s chief science post from Ed Weiler.
Not only is Grunsfeld an excellent choice, his experience as an astronaut repairing Hubble will help improve relations between the science and manned space programs. In the past, scientists have often argued against manned space, trying to get that money for their unmanned research probes. Instead, when manned space got cut, so did science, and no one won. Grunsfeld’s leadership I think will forestall these short-sighted complaints.
Excellent choice: Former astronaut John Grunsfeld has been picked to take over NASA’s chief science post from Ed Weiler.
Not only is Grunsfeld an excellent choice, his experience as an astronaut repairing Hubble will help improve relations between the science and manned space programs. In the past, scientists have often argued against manned space, trying to get that money for their unmanned research probes. Instead, when manned space got cut, so did science, and no one won. Grunsfeld’s leadership I think will forestall these short-sighted complaints.
The bar at the center of the Milky Way
The bar at the center of the Milky Way.
The bar at the center of the Milky Way.
Seven predictions for the year 2011 from 1931
Seven predictions made in 1931 for the year 2011.
Seven predictions made in 1931 for the year 2011.
A Christmas Miracle.
Using the spacecraft’s last drops of fuel, engineers are attempting to aim Deep Impact toward a rendezvous with near Earth asteroid 2002 GT.
Using the spacecraft’s last drops of fuel, engineers are attempting to aim Deep Impact to a 2020 rendezvous with near Earth asteroid 2002 GT.
Using the spacecraft’s last drops of fuel, engineers are attempting to aim Deep Impact to a 2020 rendezvous with near Earth asteroid 2002 GT.
The Habitable Exoplanets Catalog, now online
The Habitable Exoplanets Catalog, now online.
The Habitable Exoplanets Catalog, now online.
Budget deal cuts EPA by three percent
Another science budget update from Nature states that the budget deal will cut EPA by three percent.
This cut reduces EPA’s budget from its 2011 numbers by about $400 million. However, the agency’s total 2012 budget of $8.4 billion is still $1 billion more than it got in 2008, hardly what I’d call a draconian cut.
Once again, the inability of Congress to seriously face the deficit issue threatens to eventually destroy the U.S.’s ability to do any science. A bankrupt nation can’t do much but feed itself, as the scientists in the Soviet Union learned back in the 1990s.
Another science budget update from Nature states that the budget deal will cut EPA by three percent.
This cut reduces EPA’s budget from its 2011 numbers by about $400 million. However, the agency’s total 2012 budget of $8.4 billion is still $1 billion more than it got in 2008, hardly what I’d call a draconian cut.
Once again, the inability of Congress to seriously face the deficit issue threatens to eventually destroy the U.S.’s ability to do any science. A bankrupt nation can’t do much but feed itself, as the scientists in the Soviet Union learned back in the 1990s.
The Fukushima nuclear reactor has reached the state of cold shutdown
Good news: The Fukushima nuclear reactor has reached the state of cold shutdown.
This means that the reactor core has cooled enough that there is no need to recirculate the water to keep the fuel cool. However, because the reactor continues to leak that water recirculation is still necessary, and will be for years.
As is typical of many modern journalists, the article above is also an unstated editorial both hostile to nuclear energy as well as private enterprise, best shown by the article’s concluding paragraph:
Meanwhile, the Japanese public and many of its politicians remained deeply mistrustful of the situation at Fukushima. In this week’s issue of Nature, two members of the Japanese parliament call for nationalization of the Fukushima Plant, to allow scientists and engineers to investigate exactly what happened inside the reactors, and to reassure the public that the decommissioning will be done with their interests at heart. Regardless of whether you agree with the authors, nationalization seems almost inevitable. The lengthy decommissioning process that will follow this cold shutdown, and the enormous cost involved, make it a job for a government, not a corporation. [emphasis mine]
First, he has no idea what the Japanese public thinks of this situation. Second, there is no evidence that the government could do this job better than the company that runs the reactor. Both conclusions are mere opinion, inserted inappropriately in a news article without any supporting proofs.
Good news: The Fukushima nuclear reactor has reached the state of cold shutdown.
This means that the reactor core has cooled enough that there is no need to recirculate the water to keep the fuel cool. However, because the reactor continues to leak that water recirculation is still necessary, and will be for years.
As is typical of many modern journalists, the article above is also an unstated editorial both hostile to nuclear energy as well as private enterprise, best shown by the article’s concluding paragraph:
Meanwhile, the Japanese public and many of its politicians remained deeply mistrustful of the situation at Fukushima. In this week’s issue of Nature, two members of the Japanese parliament call for nationalization of the Fukushima Plant, to allow scientists and engineers to investigate exactly what happened inside the reactors, and to reassure the public that the decommissioning will be done with their interests at heart. Regardless of whether you agree with the authors, nationalization seems almost inevitable. The lengthy decommissioning process that will follow this cold shutdown, and the enormous cost involved, make it a job for a government, not a corporation. [emphasis mine]
First, he has no idea what the Japanese public thinks of this situation. Second, there is no evidence that the government could do this job better than the company that runs the reactor. Both conclusions are mere opinion, inserted inappropriately in a news article without any supporting proofs.
NIH and DOE in the proposed budget deal
The National Institutes of Health (NIH) and the science office in the Department of Energy (DOE) appear to avoid serious cuts in the proposed budget deal.
Actually, NIH’s budget remains almost identical to what it got in 2012, $30.6 billion. However, this amount is $1.4 billion more than it got in 2008, and $1.7 billion more than it got in 2007. As for DOE’s Office of Science, the $4.889 billion for 2012 is still $700 million more than the office got in 2008.
In other words, considering the budget deficits the federal government faces, these 2012 budget numbers hardly seem to be a reasonable attack on the problem. Simply bringing those budget numbers back down to 2008 numbers would hardly damage the work these government agencies are doing, and it would surely do more to reduce the deficit.
The National Institutes of Health (NIH) and the science office in the Department of Energy (DOE) appear to avoid serious cuts in the proposed budget deal.
Actually, NIH’s budget remains almost identical to what it got in 2012, $30.6 billion. However, this amount is $1.4 billion more than it got in 2008, and $1.7 billion more than it got in 2007. As for DOE’s Office of Science, the $4.889 billion for 2012 is still $700 million more than the office got in 2008.
In other words, considering the budget deficits the federal government faces, these 2012 budget numbers hardly seem to be a reasonable attack on the problem. Simply bringing those budget numbers back down to 2008 numbers would hardly damage the work these government agencies are doing, and it would surely do more to reduce the deficit.
Scientists have found microbes inside a lava tube that can thrive in the freezing cold and low oxygen environment of Mars.
Scientists have found microbes inside a lava tube that can thrive in the freezing cold and low oxygen environment of Mars.
In a laboratory setting at room temperature and with normal oxygen levels, the scientists demonstrated that the microbes can consume organic material (sugar). But when the researchers removed the organic material, reduced the temperature to near-freezing, and lowered the oxygen levels, the microbes began to use the iron within olivine – a common silicate material found in volcanic rocks on Earth and on Mars – as its energy source.
Scientists have found microbes inside a lava tube that can thrive in the freezing cold and low oxygen environment of Mars.
In a laboratory setting at room temperature and with normal oxygen levels, the scientists demonstrated that the microbes can consume organic material (sugar). But when the researchers removed the organic material, reduced the temperature to near-freezing, and lowered the oxygen levels, the microbes began to use the iron within olivine – a common silicate material found in volcanic rocks on Earth and on Mars – as its energy source.
Rider on the Storm
At approximately 6:00 pm, Lt Col Rankin concluded that his aircraft was unrecoverable and pulled hard on his eject handles. An explosive charge propelled him from the cockpit into the atmosphere with sufficient force to rip his left glove from his hand, scattering his canopy, pilot seat, and other plane-related debris into the sky. Bill Rankin had spent a fair amount of time skydiving in his career—both premeditated and otherwise—but this particular dive would be unlike any that he or any living person had experienced before.
Or since.
At approximately 6:00 pm, Lt Col Rankin concluded that his aircraft was unrecoverable and pulled hard on his eject handles. An explosive charge propelled him from the cockpit into the atmosphere with sufficient force to rip his left glove from his hand, scattering his canopy, pilot seat, and other plane-related debris into the sky. Bill Rankin had spent a fair amount of time skydiving in his career—both premeditated and otherwise—but this particular dive would be unlike any that he or any living person had experienced before.
Or since.
A Russian scientist has found large amounts of methane being released in the atmosphere in the Arctic
A Russian scientist has found large amounts of methane being released into the atmosphere in the Arctic, far more than previously predicted.
It is speculated that these releases are the result of the Earth’s warming climate during the past several hundred years. And because methane is a far more powerful greenhouse gas than carbon dioxide, its release will feed into that warming.
A Russian scientist has found large amounts of methane being released into the atmosphere in the Arctic, far more than previously predicted.
It is speculated that these releases are the result of the Earth’s warming climate during the past several hundred years. And because methane is a far more powerful greenhouse gas than carbon dioxide, its release will feed into that warming.
UK police seize computers of skeptic blogger in England
Attacking the messenger? The UK police have seized several computers belonging to the first blogger in England to break the story of climategate 2.
Attacking the messenger? The UK police have seized several computers belonging to the first blogger in England to break the story of climategate 2.
Walking through the new American Amundsen Scott South Pole station
An evening pause: In honor of the 100th anniversary of Roald Amundsen’s arrival at the South Pole on this date, 1911, lets take a tour through the recently completed new Amundsen Scott South Pole station.
At one point right after walking through the cafeteria the cameraman points the camera out a window where you can see several flagpoles. That is where the actual South Pole is located. The camera than looks out a second window at a partly buried dome, which is the old station, no longer in use.
This video astonishes at what humans can accomplish in the most hostile environments.
Archaeologists announced yesterday that they have dug to the very core of Mexico’s tallest pyramid and found what may be the original ceremonial offering placed on the site prior to construction
Archaeologists announced yesterday that they have dug to the very core of Mexico’s tallest pyramid and found what may be the original ceremonial offering placed on the site prior to construction.
Archaeologists announced yesterday that they have dug to the very core of Mexico’s tallest pyramid and found what may be the original ceremonial offering placed on the site prior to construction.
Climategate: the failure of scientific integrity in climate science
Scientists have discovered how hummingbirds manage to fly like insects despite the limitations of their bird skeletons.
A twist of the wrist: Scientists have discovered how hummingbirds manage to fly like insects, despite the limitations of their bird skeletons.
A twist of the wrist: Scientists have discovered how hummingbirds manage to fly like insects, despite the limitations of their bird skeletons.
Astronomers have discovered a gas cloud on a collision course with the galaxy’s central black hole
Astronomers have discovered a gas cloud on a collision course with the Milky Way galaxy’s central supermassive black hole, set for impact in the summer of 2013.
Astronomers have discovered a gas cloud on a collision course with the Milky Way galaxy’s central supermassive black hole, set for impact in the summer of 2013.