Earlier today, planetary scientists discussed preliminary findings from the MESSENGER spacecraft’s second flyby of Mercury. The October 6 encounter revealed about 30 percent of the planet previously unseen by spacecraft — an area larger than South America. MIT researcher Maria Zuber spoke about results from the laser altimeter used to measure topography. Her biggest surprise: The thin strip of area surveyed seen during the January flyby. Brian Anderson...

Last week , I told you we would show you a new map of Mercury based on the January MESSENGER flyby. Here it is, kindly provided by one of NASA’s master mappers, Robert Gaskell of the Planetary Science Institute in Altadena, California. This image is an anaglyph — a flat image that simulates a three-dimensional view — of the fault scarp Beagle Rupes as it cuts across the crater Sveinsdóttir. The area shown here is about 160 miles (257 kilometers) square...

On June 25, the Solar and Heliospheric Observatory (SOHO) discovered its 1,500th comet. This tally tops all other comet discoverers throughout history combined. From ESA: When it comes to comet catching, the SOHO has one big advantage over everybody else: its location. Situated between the Sun and Earth, it has a privileged view of a region of space that can rarely be seen from Earth. From the surface, we can see regions close to the Sun clearly only...

NASA engineers have proposed a mission to an asteroid threatening Earth. Bruce Damer (DigitalSpace) I’m happy to report NASA may be planning to do more about the as-yet unaddressed asteroid threat to Earth than helplessly watch giant space rocks whiz by the home planet from time to time. The Guardian , a British newspaper, reported recently that some NASA scientists have written a report outlining a mission to asteroid 2000SG344. The object is about...

There’s no better place to find astronomy related software than the web archive created by Astro Events Group of Ostend, Belgium. “Our compilation will actually never be complete,” says Patrick Jaecques, a member of the group. “We have updates about every week. It’s also the only part of our Dutch web site that is translated into French, German and English.” There you’ll find hundreds of programs for a wide variety of computing environments, including...

This just in from the hydrocarbon desk at Astronomy.com: Titan’s surface lakes and methane-ice-laden dune seas collectively hold hundreds of times Earth’s bounty of hydrocarbons (oil and gas). It’s a Texas oilman’s dream: hydrocarbons rain from the sky on Titan. To my mind, this could solve a lot of problems. Planetary scientists have been competing with NASA’s fantastically expensive manned space program for decades. Word on the aerospace street...

In 1967, Roger Patterson and Robert Gimlin captured the famous footage of what many cryptozooligists and kooks believe is Bigfoot. Perhaps sick of urban sprawl, the Patterson-Gimin Sasquatch relocated to the Red Planet. In a panoramic image captured by the Mars Exploration Rover Spirit in November 2007, a Bigfoot-like figure appears among the surface formations. The Internet grabbed hold of this photo around the beginning of 2008, and bloggers have...

On January 14, NASA’s MESSENGER spacecraft flew past Mercury. MESSENGER — short for MErcury Surface, Space ENvironment, GEochemistry, and Ranging — made the first close-up observations of the innermost planet in 33 years. This flyby marked the first of three encounters with the planet, providing gravity assists necessary to place the probe in orbit around Mercury in March 2011. January 25, 2008 As Mercury fades in the distance, MESSENGER continues...

On January 14, NASA’s MESSENGER spacecraft flew past Mercury. MESSENGER — short for MErcury Surface, Space ENvironment, GEochemistry, and Ranging made the first close-up observations of the innermost planet in 33 years. This flyby marked the first of three encounters with the planet, providing gravity assists necessary to place the probe in orbit around Mercury in March 2011. January 16, 2008 The first close-up images of Mercury have made their way...

On January 14, NASA’s MESSENGER spacecraft flew past Mercury. MESSENGER — short for MErcury Surface, Space ENvironment, GEochemistry, and Ranging — made the first close-up observations of the innermost planet in 33 years. This flyby marked the first of three encounters with the planet, providing gravity assists necessary to place the probe in orbit around Mercury in March 2011. January 15, 2008 It’s okay to exhale. Everyone involved with the MESSENGER...