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Solar System

It’s Raining Methane on Titan’s Dunes
March 18, 2011
Imagine a world where it rains liquid natural gas.  That world is Titan, the Mercury-sized moon of Saturn.  In Science this week,1 Cassini scientists reported large equatorial clouds over Titan’s vast dune fields, and a darkening of the surface after an apparent cloudburst.  Since only hydrocarbons can be liquid at the temperatures there, and methane […]
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Physics

Enceladus Geyser Heat Much Higher Than Thought Possible
March 7, 2011
The Enceladus problem – accounting for the heat source of a tiny moon of Saturn – just jumped by more than an order of magnitude.  “Cassini Finds Enceladus Is a Powerhouse,” reported Jet Propulsion Laboratory today.  “Heat output from the south polar region of Saturn’s moon Enceladus is much greater than was previously thought possible,” […]
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Origin of Life

Alien Life in Meteorites Claimed
March 6, 2011
After scrutinizing rare meteorites for over a decade, a NASA astrobiologist decided to go with his announcement: he may have found alien life.  Fox News began his story, “We are not alone in the universe – and alien life forms may have a lot more in common with life on Earth than we had previously […]
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Intelligent Design

Habitable Zones Constrained by Tides
February 26, 2011
The idea of a circumstellar habitable zone – a radial range around a star where an earth-like planet could support life – may be too simplistic.  Science Daily reported that “Tides can render the so-called ‘habitable zone’ around low-mass stars uninhabitable.”  Astronomers at the Astrophysical Institute Potsdam studied the effects of tides on planets around […]
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Physics

Busted!  Planet-Making Theories Don’t Fit Extrasolar Planets
February 23, 2011
Famed planet-hunter Geoff Marcy is giving theorists headaches.  The leading theories of planet formation won’t stand up to observations of hundreds of planets we know.  In National Geographic News reporter Richard Lovett lamented, “The more new planets we find, the less we seem to know about how planetary systems are born, according to a leading […]
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Solar System

Titan’s Methane Lakes Shallow, Dynamic
February 19, 2011
Strange things are happening on Titan, Saturn’s largest moon: lakes are appearing and disappearing.  This can only mean that the lakes are shallow and the liquid hydrocarbons in them are moving around.     Lakes were discovered a few years ago in the northern regions of the Mercury-size moon.  They consist predominantly of methane (CH4) […]
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Solar System

Martian Chronicles
February 3, 2011
Recent news stories about Mars can be categorized into past, present, and future. Mars past:  How Mars formed is a convoluted story.  That is evident from a report on PhysOrg that might suggest Mars modelers are drinking too much to relieve stress: “‘Marstinis’ could help explain why the red planet is so small.”  Mars seems […]
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Darwin and Evolution

Planets a-Plenty, but Are They Lively?
February 2, 2011
The Kepler spacecraft has found over 1,235 planets so far (Space.com), 54 in their star’s habitable zone, and some Earth-size or smaller.  Science media are having a field day reporting the discoveries, portraying them with artist imaginations, licking their chops at the possibility of life in outer space.  What does this mean?     Space.com […]
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Cosmology

Scientists Debunk Scientists
January 12, 2011
What do you know?  We look to science to tell us about reality, but how confident can we be when they keep changing the tune? Undermining cosmology:  Science Daily tells us today that “Cosmology Standard Candle Not So Standard After All.”  Results from the Spitzer Space Telescope show that Cepheid variables shrink as they age, […]
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Education

News from Saturn
December 7, 2010
Amazing discoveries continue to pour in from Cassini, now within its second extended mission since arriving at Saturn in 2004.  The spacecraft is back to nominal operations after a 3-week safing event caused by a single-bit error in the onboard computer (JPL).  The recovery came just in time for another major flyby of Enceladus. Enceladus […]
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Cosmology

Dumbing Down the Science Reading Public
November 5, 2010
In their rush to grab attention-getting headlines, are reporters doing more harm than good?  An essential part of science education is critical thinking.  Some headlines and articles state ideas that far outstrip the meager data on which they are based.  Fingers do the walking:  Science Daily blindly reproduced an audacious claim from the University of […]
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Philosophy of Science

Are Saturn Rings Like Galaxies?
November 1, 2010
Dramatic photos of dynamic processes in Saturn’s rings have been released by the Cassini mission at Jet Propulsion Laboratory.  The photos, taken near Saturn’s equinox last year, show ruffled edges of the B ring made of particles lofted as high as 2 miles above the ring plane, casting long shadows across the rings.  By watching […]
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Dumb Ideas

The Blue and Red States of OOL
October 29, 2010
When it comes to the origin of life (OOL), some scientists color it blue; some color it red.  New Scientist votes for the blue state.  “LIFE may really have been created by a spark, one that came as a bolt from the deep blue.”  Inspired by visions sent from Ryuhei Nakamura at the University of […]
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Darwin and Evolution

Life: Do Ingredients Imply Emergence?
October 8, 2010
Science articles continue to push the idea that if water is found somewhere, life is certain to emerge.  Other articles look for so-called “building blocks of life” or “ingredients for life,” implying or even plainly stating that life simply emerges from its parts.  While many have complained that this kind of thinking is as ridiculous […]
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Solar System

Keeping Saturn Old
October 7, 2010
Keeping a planet like Saturn going for billions of years has been a problem lately, especially when evidences show that what we see today of its rings and moons could not have lasted that long. Ringside gambling:  The rings of Saturn are majestic, colorful, and young-looking.  Their ices are too clean, and the forces acting […]
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