Earth under fire from the Sun!
The Sun’s sunspot production might be down, but we are still in the solar maximum, weak as it is, and this last week the Sun has been producing the strongest flares in years. The sunspot producing these flares is now rotating into a position where any further flares will be aimed at the Earth. Should be interesting.
Working for the Democratic Party: After waiting fifteen months for IRS approval of its tax-exempt status and getting no response, a conservative group reapplied using a liberal-sounding name and got its approval in three weeks.
There are certainly a lot of caveats to this story, but the circumstances are quite interesting, considering all we now know about the IRS’s efforts to harass conservatives.
The Kepler mission has lost its second gyroscope, ending the ability of the telescope to aim precisely. More details here.
The telescope’s primary mission, to stare continuously at one section of sky, looking for exoplanet transits, is over, though it might still be re-purposed for other astronomical research.
The myth of the scientific liberal.
The core trait of a scientific mind is that when its commitments clash with evidence, evidence rules. On that count, what grade do liberals deserve? Fail, given their reaction to the latest evidence on universal health care, global warming, and universal preschool.
The author then delves into each of these topics and shows how the liberal community refuses to deal with the evidence.
In a science fair project that came in third, a fourteen year old has discovered that the magnets inside IPADs can interfere with heart devices like implanted defibrillators.
It is that time again, buckos! Yesterday NOAA released its monthly update of the Sun’s sunspot cycle, covering the period of April 2013. As I have done every month for the past three years, I have posted this latest graph, with annotations to give it context, below the fold.
For the second month in a row the Sun’s sunspot output increased. The result is that April 2013 saw the most sunspot activity in more than a year, since December 2011.
A solar-powered airplane landed safely in Phoenix today on its first leg of an attempt to fly across the United States.
I totally support this effort to develop new technology, but must note that the capabilities of this solar-powered plane, as described in this article, are woefully limited. Nonetheless, I can see many applications where these liabilities will not be an issue, so all power to them. I hope they succeed.
The uncertainty of science: The high peak in tornado in 2011, the most in fifty years, was quickly attributed to global warming. Eric Berger asks: How does this explain this year’s low number, the fewest in fifty years?
If you click on the first link, you will see that the global warming scientists quoted, Kevin Trenberth, Michael Mann, and Gavin Schmidt, were all involved in the climategate emails, where they came off very badly. Moreover, there have been significant questions about the work of Michael Mann himself. I also wonder if these guys will have anything to say about the dearth of tornadoes today.
The lingering echo of Comet Shoemaker-Levy in the atmosphere of Jupiter.
The Herschel observations, together with heat maps provided by NASA’s Infrared Telescope Facility on Mauna Kea, showed the researchers that the Jovian stratosphere was 20° to 30°F (10° to 15°C) warmer than it would be if completely dry. One question is whether the stratospheric warming results from the gentle, continuous infall of interplanetary dust particles, which would be warmed by sunlight as they linger high up. Cavalié and his colleagues believe IDPs create some of the infrared emission but cannot explain it all. Further, a continuously supplied source would migrate to lower depths, yet most of the emission is too high up, at pressures less than 2 millibars. And while the amount of water is roughly constant across the southern hemisphere, the emission gradually weakens northward until it’s less than half as strong. It’s not simply that Jupiter’s bottom half is hotter — there’s just more water down there. As the researchers note, “At least 95% of the observed water comes from the SL9 comet and subsequent (photo)-chemistry in Jupiter’s stratosphere according to our models, as of today.
Taken together, they conclude, these observations offer “clear evidence that a recent comet … is the principal source of water in Jupiter. What we observe today is a remnant of the oxygen delivery by the comet at 44°S in July 1994.”
The Chinese national who had been arrested at Dulles airport as he left for China with a NASA laptop has been released after pleading guilty to one charge, having porn on the laptop.
Investigators found no classified information on the computer. As part of the release agreement, however, the man must leave the U.S.
Though the man, Bo Jiang, was very careful to bring nothing secret with him when he tried to flee to China in March, the circumstantial evidence suggests that he should not have had access to this information in the first place, and that in the past he might have illegally funneled classified information to China.
A new high resolution image from Mars Express illustrates the violent landslides and lava flows off the eastern flank of Olympus Mons, the solar system’s largest volcano.
NASA revealed Tuesday that last April the Fermi Gamma-Ray Telescope barely avoided a collision with an abandoned Russian satellite.
Fermi mission scientists first learned of the space collision threat on March 29, 2012 when they received a notice that the space telescope and Cosmos 1805 would miss each other by just 700 feet (213.4 meters). The mission team monitored the situation over the next day and it became clear that the two spacecraft, traveling in different orbits, would zip through the same point in space within 30 milliseconds of one another, NASA officials said.
They used Fermi’s thrusters to shift its orbit enough so the two spacecraft missed each other by 6 miles.
Astronomers have discovered a previously unknown neighbor galaxy to the Milky Way.
Schools from Puerto Rico dominated the competition at this past weekend’s Great Moonbuggy Race.
Smithsonian researchers have recovered a short recording of Alexander Graham Bell’s voice, made in 1885.
Opportunity went into safe mode during the communications pause in April when the Sun was between Mars and the Earth.
Mission controllers for Opportunity, which landed on Mars in January 2004, first learned of the issue on Saturday (April 27). On that day, the rover got back in touch after a nearly three-week communication moratorium caused by an unfavorable planetary alignment called a Mars solar conjunction, in which Mars and Earth are on opposite sides of the sun. The Opportunity rover apparently put itself into standby on April 22 after sensing a problem during a routine camera check, mission managers said.
It sounds like this is a recoverable problem and the rover will be back in operation momentarily. Stay tuned.
The Herschel Space Telescope has closed its eye on the universe.
After four years of operation, the telescope’s supply of helium coolant has run out, leaving the infrared telescope blind to the sky.
Cassini snaps an amazing image of Saturn’s north pole vortex.
Cassini has imaged meteorites as they crash into Saturn’s rings.
