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An evening pause:
Tag: science
The New Madrid fault might be turning off
According to GPS data gathered over the past two decades, it appears that the New Madrid fault in Missouri might be shutting down.
Disgraced Dutch Pyschologist Returns Doctoral Degree
The Dutch scientists who faked the data on dozens of papers has given up his doctoral degree.
Taming lightning
Lightning!
Lightning! With pictures and video.
Russia has two weeks to save Phobos-Grunt
Russia has two weeks to save Phobos-Grunt.
A fired up Sun
As it does every month, NOAA’s Space Weather Prediction Center today released its monthly update showing the ongoing changes of the Sun’s solar cycle sunspot activity. I have posted the graph below the fold.
For the fourth month in a row the Sun’s sunspot activity has leaped upward. In fact, for the first time since I have been tracking sunspot activity, beginning in 2008, the Sun’s sunspot activity exceeds the predicted activity by a significant amount. Since the end of the previous maximum, the Sun had consistently failed to meet the expectations of solar scientists by producing far fewer sunspots than expected.
In the past few months, however, the Sun has recovered, its activity firing upward, including some of the most active and largest sunspots in years.
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Phobos-Grunt appears to be in trouble in Earth orbit
Phobos-Grunt appears to be in trouble in Earth orbit.
In a posting to an online forum for the Phobos-Grunt mission, Anton Ledkov of the Russian Space Research Institute reported that there was “no telemetry” from the spacecraft.
Another report suggests that a variety of engine thrusters did not fire as planned.
Scientists are considering breaking free from the solar year in how they synchronous their atomic clocks
To leap or not to leap: Scientists are considering abandoning the solar year as their method for synchronizing their atomic clocks.
At issue is whether to abolish the ‘leap second’ — the extra second added every year or so to keep [Coordinated Universal Time] (UTC) in step with Earth’s slightly unpredictable orbit. UTC — the reference against which international time zones are set — is calculated by averaging signals from around 400 atomic clocks, with leap seconds added to stop UTC drifting away from solar time at a rate of about one minute every 90 years.
Mars Express takes a close look at the Mars volcano Tharsis Tholus
Mars Express takes a close look at one of Mars’ giant volcanoes, Tharsis Tholus.
At least two large sections have collapsed around its eastern and western flanks during its four-billion-year history and these catastrophes are now visible as scarps up to several kilometers high. The main feature of Tharsis Tholus is, however, the caldera in its center. It has an almost circular outline, about 32 x 34 km, and is ringed by faults that have allowed the caldera floor to subside by as much as 2.7 km.
NASA’s Deep Space Network has captured a radar image of asteroid 2005 YU55
NASA’s Deep Space Network has captured a radar image of asteroid 2005 YU55, set to buzz past the Earth tomorrow.
Watch asteroid 2005 YU buzz the Earth tomorrow with your backyard telescope
Watch asteroid 2005 YU55 buzz the Earth tomorrow with your backyard telescope.
A fragment of human jaw unearthed in a prehistoric cave in Torquay is the earliest evidence of modern humans in north-west Europe
A fragment of human jaw unearthed in a cave in Britain appears to be the earliest evidence of modern humans in north-west Europe.
An international team of astronauts recently completed a six day underground cave mission
An international team of astronauts recently completed a six day underground cave mission in an effort to simulate some of the aspects of space exploration on another world.
I, along with my cave exploration friends, find this article somewhat humorous, as these astronauts weren’t doing anything that unusual from our perspective. Routinely we have teams going underground for three to five days to do exploration and survey work as part of the Germany Valley Karst Survey in West Virginia. The result has been more than fifty miles of virgin passage in the past eight years.
But, if these astronauts want to join us and do some exploration, they’d be welcome!
Rather than gliding, the first flying bats used their wings to flutter down on their prey
Rather than learning to fly by gliding, a new theory proposes that the first flying bats learned how to fly by fluttering down on their prey.
The largest sunspot in years released the largest flare in years on Thursday
The largest sunspot in years released the largest flare in years on Thursday.
Brian Malow – Nobel, Edison & the Speed of Light
An evening pause: “And yes, I did do the math for that joke!”
Russia heads for Mars
Russia heads for Mars: a detailed look at the Phobos/Grunt sample return mission, set to launch on November 8.
I really wish the Russians good luck with this project. Not only would it herald their return to planetary science since the fall of the Soviet Union, success here would break their long string of failures to the red planet. Though their unmanned planetary program had some remarkable achievements during the Soviet era, of the 19 missions they flew to Mars in the 1960s, 1970s, and 1980s, all were failures, producing almost no useful data.
The 520-day simulated mission to Mars has been completed
The 520-day simulated mission to Mars has been completed.
Vintage leather football helmets are often as protective as modern hard football helmets
Newer is not always better: A study has found that vintage leather football helmets used in the early 1900s can be as good if not better than modern hard football helmets in protecting the head.