VIEW HEADLINES ONLY
Physics

More Impacts on Crater Count Dating
September 25, 2007
Planetary scientists have relied on crater counts to estimate the surface age of a planet or moon.  The more craters, the older the surface.  This method has recently come under closer scrutiny (see 10/20/2005) because of the phenomenon of secondary cratering.     A simplistic look at a crater-scarred planet or moon might lead one […]
CONTINUE READING
Cell Biology

Upsets: Assumptions About Genes, Atmospheres Challenged
September 24, 2007
It’s not fun when a whole superstructure of scientific theories and models is found to rest on a shaky foundation.  That’s just what may be happening in two very different fields: genetics and planetary science: Lateral pass to the opposing team:  Building evolutionary trees by comparing genomes was supposed to be simple.  Sure, geneticists knew […]
CONTINUE READING
Origin of Life

Mars Was and Is Dry
September 21, 2007
The cover story of Science this week has bad news for those hoping for Martian lakefront property.  A series of articles by planetary scientists who studied images from the Mars Reconnaissance Orbiter casts strong doubt on the presence of water on Mars, even in the planet’s early days.  The overview article by Richard Kerr in […]
CONTINUE READING
Solar System

Iapetus update
September 13, 2007
The data have returned from Cassini’s closest-ever flyby of Iapetus (see 09/07/2007).  All the images can be found at Cassini Multimedia raw images, with good samples posted by the imaging team here and here.     Amateurs and pros at Unmanned Spaceflight started getting really excited at 12:40 a.m. Tuesday when the images hit the […]
CONTINUE READING
Physics

Saturn’s Iapetus Takes Cassini’s Spotlight
September 7, 2007
Scientists are eagerly poised for Cassini’s long-awaited ultra-close flyby of Iapetus on September 10.  The previous visit in 2005 was over 77,000 miles away; this flyby will skim the surface from less than 1,000 miles.  Moreover, it will see a portion of the moon only vaguely imaged by Voyager and Cassini before.  Jet Propulsion Laboratory, […]
CONTINUE READING
Dumb Ideas

Solar System Solved?
August 30, 2007
Those who deal in models of the origin of the solar system sometimes have to entertain themselves to overcome grief.  See if you can detect this attitude in the following Stupid Evolution Quote of the Week from Space.com: “This has been a stumbling block for 30 years,” said Mordecai-Marc Mac Low, an astrophysicist at the […]
CONTINUE READING
Origin of Life

Solar System News
August 28, 2007
A flurry of discoveries about the Sun’s family has some scientists smiling and others furrowing their brows.  Astrobiologists, as usual, are wielding their divining rods, looking for water.  Some of these reports surfaced at the European Planetary Science Congress last week at Potsdam, Germany; see agenda and press releases at Europlanet. Basalt assault:  How did […]
CONTINUE READING
Astronomy

Four Evidences of Cosmic Youth
August 4, 2007
Astronomers and planetary scientists routinely talk in millions and billions of years.  Three recent science news reports raise questions about how to fit apparently young objects into a vast timeline.  Lunar burps:  The moon is passing gas, reported Science News).  This explains the long history of observations of lunar transients, or bright flashes observed from […]
CONTINUE READING
Solar System

We Live in a Rare Solar System
July 21, 2007
Surveys of extrasolar planets are making our solar system look unusual.  Most stars that host a family of planets have the gas giants close in, an article on Space.com states.  The “hot Jupiters” seen around many stars would most likely eject any rocky planets from the habitable zone.  “Of the nearly 250 planets discovered so […]
CONTINUE READING
Solar System

Iapetus, Charon Look Young for Their Age
July 18, 2007
Hard bodies in the solar system are supposed to be billions of years old.  Why, then, do so many look smooth and young-looking?  Two examples made news today: Charon So Smooth:  Pluto has a moon named Charon (KAR-on) that apparently leaks beauty cream out of its interior.  Live Science and Space.com report about a study […]
CONTINUE READING
Physics

The Daily Planet
July 12, 2007
This entry is not about birds or planes; it’s supernews from the solar system. Sponge Blob:  Hyperion, an oddball moon of Saturn between Titan and Iapetus, was featured at Jet Propulsion Laboratory last week (see stunning image from Sept. 2005 at the Cassini imaging team website).  Two papers in Nature July 5 analyzed its sponge-like […]
CONTINUE READING
Geology

Lord Kelvin’s Core Values Defended
July 2, 2007
Myth: Lord Kelvin held back the progress of geology for 100 years by insisting the Earth was younger than geologists and evolutionists believed. Myth debunked here.
CONTINUE READING
Physics

Saturn’s Moons Are Bustin’ Out All Over
June 16, 2007
Add Tethys and Dione to the party blowers around Saturn.  Cassini found that these two moons are active, like Enceladus and Titan, though on a lesser scale.  Cassini scientists discovered the effects of outbound particles from these moons by studying the plasma fields with the Cassini plasma spectrometer (CAPS) instrument.  The results suggest surface activity, […]
CONTINUE READING
Solar System

How Old Are Sand Dunes?
June 4, 2007
The Namib Desert has some of the largest sand dunes in the world.  How old are they?  Three scientists from the University of London decided to find out.  They took cores out of some dunes in Namibia and analyzed the sand, using multiple high-tech methods.  Their conclusion, just published in Geology: the dunes are much […]
CONTINUE READING
Astronomy

Think Fast: News Briefs
May 21, 2007
Of the many news items that cross the CEH desk, many are noteworthy but go unreported due to lack of time.  Here are a few that deserve honorable mention lest they pass into oblivion. Cosmology: Dark future – Several sources like Science Now and Space.com commented on the dark future of the universe if cosmic acceleration […]
CONTINUE READING
All Posts by Date
[archives type="yearly" cat_id="40"]