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Geotimes
January 2006
Megan Sever |
Sizing up a Crater New modeling of the impact of an Eocene extraterrestrial projectile in what is now the Chesapeake Bay shows that it was smaller than previously thought, and could help better predict the effects of future potential impacts.   |
Geotimes
January 2004
Megan Sever |
Unraveling the Chicxulub Case On the Yucatan Peninsula in Mexico, geologists are drilling one of Earth's three largest impact structures, hoping to reveal clues about a devastating event linked to the extinction of the dinosaurs 65 million years ago. |
Geotimes
January 2004
Lisa M. Pinsker |
Impacts in Space and on Earth: An Interview with Carolyn Shoemaker Carolyn Shoemaker has discovered more comets than anyone else alive today. Under the tutelage of her late husband, Carolyn learned how to identify these objects both in the sky and on the ground. |
Geotimes
July 2004
Megan Sever |
Possible P/T Impact Crater A group of scientists now says they have uncovered a crater that may be responsible for the mass extinction at the end of the Permian, and their results are inciting a new flurry of controversy. |
Scientific American
May 16, 2005
Barry E. DiGregorio |
Doubts on Dinosaurs Yucatan impact crater may have occurred before the dinosaurs went extinct. |
Chemistry World
April 11, 2008
Richard Van Noorden |
Seawater Osmium Sizes up Meteorites Osmium isotopes in seawater sediment can be used to reveal ancient meteorite strikes, US-based scientists say. |
Geotimes
January 2005
Naomi Lubick |
Bombing a Comet Yesterday at 1:47 p.m. EST, NASA successfully launched a rocket from Cape Canaveral, Fla., carrying the Deep Impact spacecraft toward its rendezvous with a comet. |
Scientific American
May 8, 2006
Graham P. Collins |
Chaos in the Crater Welcome to the Vredefort Crater, a real Bermuda Triangle about 100 kilometers southwest of Johannesburg. It is the oldest and largest impact remnant on the planet, created by an asteroid about two billion years ago. |
Geotimes
January 2006
Kathryn Hansen |
Mammoth Meteorite Unearthed A meteorite hunter and broker pulled from a depth of 2 meters a rare Brenham meteorite from a Kansas farm field. The 650-kilogram find is the largest of its kind discovered anywhere in the world. |
Geotimes
October 2006
Kathryn Hansen |
Debate Continues Over Dinosaur Demise Analysis of new core samples support previous research from that the Chicxulub meteor struck about 300,000 years prior to the K/T extinction event and, therefore, did not cause extinction of the dinosaurs. |
Chemistry World
April 15, 2010
Lewis Brindley |
Mars meteor gets a boost of youth A Martian meteorite that has played a pivotal role in our understanding of the Solar System has been found to be half a billion years younger than previously thought, say US researchers. |
Geotimes
February 2006
Kathryn Hansen |
No Lake on Mars? NASA's Mars Exploration Rover team says that the presence of standing water in Mars' geologic past can account for the geologic features and chemistry found in some places there. A group of geologists, however, is now challenging that idea. |
Geotimes
January 2004
C. Wylie Poag |
Coring the Chesapeake Bay Impact Crater An extraterrestrial impact 36 million years ago left a lasting impression in the Chesapeake Bay and continues to affect the region's environment today. |
Geotimes
March 2004
Megan Sever |
Wisconsin crater revealed In 1942, mappers doing reconnaissance work first noticed an anomalous geologic structure in western Wisconsin. Now geologists have determined that the feature is a 430- to 445-million-year-old meteorite impact structure. |
Geotimes
November 2004
Jay Chapman |
Impacting the Origin of Life Impact events and meteorite strikes are often associated with mass extinctions and widespread devastation. But, despite this destructive reputation, impact events may have played a role in the evolution of life, according to several new studies. |
Geotimes
September 2006
Kathryn Hansen |
Opportunity Reaches Martian Crater Cameras aboard NASA's Mars rover Opportunity captured the vast expanse of Victoria crater. |
Geotimes
December 2005
Kathryn Hansen |
No Lake on Mars? A group of geologists is contesting the idea that the landing location of the Mars rover Opportunity is the site of an evaporated lake, a debate that will not dry up anytime soon. |
Popular Mechanics
December 2006
David Noland |
The Threat is Out There More than 100,000 asteroids hurtle past our planet. But only one -- that we know of -- may hit us in the next 30 years. |
Geotimes
July 2005
McFadden & Schultz |
Collision Course: Deep Impact The Deep Impact project will shed light on some fundamental scientific questions about comets, including what they are made of and how they formed. |
IEEE Spectrum
April 2012
Gregory L. Matloff |
Deflecting Asteroids A solar sail could use light to nudge an earthbound rock into an orbit we could live with |
Geotimes
October 2004
Naomi Lubick |
Traveling on Mars Over the past nine months, Mars' twin rovers have delivered amazing photographs and data to Earth, and now the first published science findings have appeared. |
Wired
January 2007
Ben Paynter |
The Meteor Farmer Using a souped-up metal detector, a shovel, and a treasure map, Steve Arnold combs the flat Kansas wheat fields for rocks from outer space. |
Geotimes
July 2004
Lisa Rossbacher |
Manna from the Heavens? Most geologists have multiple opportunities to identify rock samples collected by the public. And the more valuable the finder believes the materials to be, the less he wants to believe it is pyrite or quartz or a bovine femur. |
Geotimes
December 2006
Sally Adee |
Meteorite Pre-Dates Solar System A team of NASA researchers recently reported finding organic material in Tagish Lake meteorite fragments that pre-dates the solar system. |
Chemistry World
December 8, 2008
Hayley Birch |
Meteorites hitting oceans may have kick-started life Japanese scientists have done laboratory experiments to test the idea. |
Geotimes
May 2004
Joshua Chamot |
Big Impact for a Small Moon Mineral Researchers have identified a new mineral from the moon, revealing new details about space weathering processes and offering a better understanding of remote observations of the moon and its brethren. |
Popular Mechanics
September 24, 2009
Joe Pappalardo |
Water Found on Moon These images show a very young lunar crater on the side of the moon that faces away from Earth, as viewed by NASA's Moon Mineralogy Mapper on the Indian Space Research Organization's Chandrayaan-1 spacecraft. |
Popular Mechanics
September 2006 |
Scientists Are Finding Life In Earth's Coldest, Hottest, Weirdest Places By creating an alternative life chemistry in the lab, astrobiologist Steven Benner hopes to uncover a formula for alien microbes. How five big questions about life on our planet are shaping the search for it on other worlds. |
Chemistry World
February 15, 2010
Hayley Birch |
Decades-old meteorite gets holistic treatment A new technique used to analyse samples from a meteorite that hit Australia more than 40 years ago could help scientists understand more about the chemical complexity of the early solar system. |
Smithsonian
May 2005
Carl Zimmer |
Life on Mars? It's hard enough to identify fossilized microbes on Earth. How would we ever recognize them on Mars? |
Popular Mechanics
January 5, 2010
Jeremy Jacquot |
The Top 4 Sites to Land on Mars and Their Biggest Mysteries Scientists at the Pasadena based NASA research center will decide within the next two years where to send the Mars Science Laboratory rover after it launches in the fall of 2011. |
Geotimes
November 2005
Kathryn Hansen |
Earthly Origin for Desert Formation The Richat Structure in the Maur Adrar Desert is frequently photographed from space. The formation resembles an impact crater, but researchers now say that the famous feature may be the result of magma fluids dissolving sedimentary rocks about 100 million years ago. |
Geotimes
April 2003
Lisa M. Pinsker |
Seeing Chicxulub A new map of the Yucatan from NASA shows for the first time the 180-kilometer wide crater left behind after a giant impact that researchers believe killed the dinosaurs 65 million years ago. |
Geotimes
February 2004
Naomi Lubick |
Mars update: a pixel at a time The two rovers on Mars are on the move. Spirit, after 10-day lapse in memory, now functions again after efforts by Jet Propulsion Lab (JPL) scientists. Its twin explorer, Opportunity, has been traveling in its own crater, halfway around the planet. |
Geotimes
January 2007
Sally Adee |
Meteorite Pre-Dates Solar System When the Tagish Lake meteorite crashed to Earth in 2000, researchers suspected that it would provide one more clue to the origin of life, but instruments were not yet sophisticated enough to confirm a connection. That connection could soon turn up. |
Geotimes
March 2004
Megan Sever |
Extinction debate continues Did the Chicxulub impact off the Yucatan coast in Mexico kill the dinosaurs 65 million years ago? |
Science News
April 16, 2005 |
From the April 13, 1935, Issue Giant Meteorite Found in Southwestern Kansas... Good Antiknock Gasoline Made From Coal in Germany... Elastic Rock Layers Found 35 Miles Down in Earth... |
| AskMen.com |
Water On The Moon NASA says a spacecraft that was intentionally crashed into the moon has turned up the best evidence yet of water. |
