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Modeling Just-So Stories for Earth History

Models are only simulations of reality.  In science, they have a long history of simplifying complex physical phenomena in an attempt to understand them.  Many times, empirical evidence can correct a model.  The model then becomes a more accurate simulation, and can even provide additional insights and make predictions.  Can modeling work for the unobservable, […]

Spore Game: Evolution or ID?

Spore is a highly-anticipated computer game that just came out.  Evolutionists are claiming it as a model of how life evolves – but intelligent-design advocates are calling it an ID game, pure and simple.  Who’s right?     Carl Zimmer, a science writer, is among those counting Spore points for Darwin.  His blog entry from […]

Dark Matters, When All You Have Is Light

A cluster of galaxies equivalent to a thousand Milky Ways was observed at a distance of 7.7 billion light-years.  What does it mean?  According to astronomers mentioned in an article on Space.com, it can only mean one thing: dark energy makes up 70% of the universe.     “The existence of the cluster can only […]

Describing Star and Galaxy Growth Without Looking

Astronomers seem to know a lot about star birth and galaxy growth.  This is a strange thing, since no one has watched the process from start to finish.  Stars and galaxies are clearly observed in various shapes, sizes, and patterns.  How reliable is it to arrange them into an evolutionary sequence?     One way […]

Cassini Survives Enceladus Geyser Plunge

The Cassini spacecraft has done it again – returned some of the most stunning outer planet images ever taken.  Zipping by at just 30 miles over the active surface of Enceladus, Cassini did a “skeet shoot” of high-res images achieving 7 meters per pixel in places – the highest resolution of any shot of a […]

Life in Space: Follow the Hot Water, not the Hot Air

Planetary scientists have their eyes and instruments on regions of hot water, but speculating too dogmatically about life in space could get you in hot water yourself.     Simon Klatterhorn (geologist, U of Idaho) is mesmerized by the possibility of life at Europa, Jupiter’s ice-crusted oceanic moon.  In an interview by Science Daily, he […]

Phoenix Did NOT Find Mars Life

A media snafu has NASA spokespersons rushing to deny that life has been found on Mars, reported Space.com.  For example, Live Science reporter Leonard David said that the White House has been alerted to the potential for new information about life on Mars based on findings from the Phoenix Lander.  The apparent secrecy has teased […]

What’s SETI Got to Do With It?

The science news outlets are all posting a story from Space.com about how you can adopt a scientist.  Mark Showalter is an interesting guy – astronomer, scuba diver, amateur naturalist, award-winning photographer, and specialist in planetary rings.  But why was this story posted in the SETI column?     There doesn’t seem to be anything […]

Ethane Lake Found on Titan

Liquid ethane has been detected in a lake near the south pole of Saturn’s moon Titan, reported JPL yesterday.  This confirms long-held suspicions that ethane, a byproduct of methane disruption by the solar wind, accumulates on the surface of the large atmosphere-shrouded moon.  A problem remains why there is so little of it.  Pre-Cassini predictions […]

Earth from Space Is a Special Place

The Deep Impact spacecraft, 31 million miles away, captured images of the moon circling the Earth, reported Space.com (for the sequence of images, click here).  “Making a video of Earth from so far away helps the search for other life-bearing planets in the universe by giving insights into how a distant, Earth-like alien world would […]

Early Magnetic Galaxies Surprise Astronomers

Astronomers reported in Nature that early galaxies have normal magnetic fields.1  That is surprising because magnetic fields were supposed to start small and strengthen over billions of years.     The team tried to be careful to distinguish intervening magnetic signatures from those in quasars.  Their measurements indicated that “organized fields of surprisingly high strengths […]

Watery Moon Upsets Conventional Wisdom

The moon looks pretty dry.  It may have maria (oceans) but the figurative term would not attract customers for beachfront property: its seas are made of hardened lava.  The moon’s “Ocean of storms” (Mare Procellarum) only gets rain in the form of solar wind and cosmic rays.  Still, could there be water molecules in this […]

Love Your Planet

Modern astronomy and space travel have given humans the ability to view the earth from a distance and ponder its significance.  Some astronomers expected the earth to be ordinary-looking.  In many respects, however, astronomy is teaching us otherwise.  Clara Moskowitz, staff writer for Space.com began an article by saying, “Earth is one special planet.”   […]

What Mean These Stars?

There are more things in heaven and earth than are dreamt of in current astronomical models.  Two articles recently underscored the fact that astronomers still have a lot to learn. Cluster generation conundrum:  The members of globular star clusters were long thought to be old stars of the same age, like seniors at a care […]

First Mercury Research Papers in from MESSENGER

Science published a suite of papers analyzing data from the first MESSENGER spacecraft flyby of Mercury.1  The flyby last January was the first since Mariner 10 visited in the 1970s.  Mariner 10 had left many questions that are now being revisited.  Among the dozen papers and articles, here are three that discuss the most significant […]
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