dweir presents
METEORITES: A Systematic Classification Through Photographs
Where Splitters and Lumpers find common ground
***23 Years on the World Wide Web ***
The opportunity is at hand to investigate the surface of Mars and obtain ground truth for our martian meteorites.
| Zagami, martian shergottite | Nakhla, martian nakhlite | Chassigny, martian chassignite |
| 21 g cut fragment, coarse lith. | 1.9 g cut fragment | 0.76 g cut fragment | Fell October 3, 1962 | Fell June 28, 1911 | Fell October 3, 1815 |
click on photos for a magnified view (photos not shown at the same scale)
Thanks for visiting my website, updated regularly since May 1997
Employing
internal site search
now indexing 443 document pages containing 9.63 MB of data
TIP: type the current or any previous year (e.g., 2010) in the site search box to see a list of referenced updates for that year
~ PREMIÈRE SHOWING ~
Lennon Bradley's
The Breakup of Antaeus
Previous Features:
Dr. Jay Piatek's PALLASITES: A Rare View
Kevin Kichinka's The Rise of the Raj and the Fall of Shergotty (pdf format)
Ureilites are finally figured out! read more >>
NEW DEFINITIONS FOR METEORITE-RELATED TERMS (now includes the NEW definition of "planet")
NEW INTERPRETATION OF THE HISTORIC NAKHLA DOG REPORT
A new jewel from the Sahara, NWA 8535: The first dunitic angrite
Is this a piece of "Maia", mother of Hermes (Mercury), or possibly a piece of "Theia", mother of Selene (the Moon goddess)? read more >>
Photo courtesy of Habib Naji—click on photo for a magnified view
Think you've found a meteorite? read more >>
Was it launched from Mercury?See Indicators of a Mercurian Meteorite
Congratulations Stefan Ralew for discovering the van Gogh of meteorites!
NWA 7325
click on photo for a magnified view and read more >>
Perhaps you have a meteorite sample from Uranus or Neptune... read more >>
Pluto Walk, Lowell Observatory
Flagstaff, Arizona
click on photo for a magnified view
This photo was taken September 1990 in Flagstaff, Arizona during a chance meeting between Doug Hollis and myself with Clyde Tombaugh and his wife Patricia. They happened to be visiting the observatory, from which he discovered the ninth planet Pluto, to make their first stroll together down the newly constructed Pluto Walk. The photo was shared with Clyde and received his signature in May 1992.
Congratulations Clyde Tombaugh on your historic visit to Pluto!
Link to high-resolution image
https://www.nasa.gov/sites/default/files/thumbnails/image/crop_p_color2_enhanced_release.png
Link to high-resolution image
https://www.nasa.gov/sites/default/files/thumbnails/image/nh-charon-neutral-bright-release.jpg
NASA's New Horizons spacecraft captured the above high-resolution enhanced color images of Pluto and Charon on July 14, 2015. The Pluto and Charon images resolve details as small as 0.8 miles and 1.8 miles, respectively. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute.
The image below depicts every know planet in the solar system under 10,000 km in diameter (shown to scale), based on the geophysical definition of a planet proposed by Runyon et al., 48th LPSC, #1448 (2017). The known planets currently number ~110.
click on photo for a magnified view
