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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 May 2005 Megan Sever |
Meteor Crater's Slow Impact New findings suggest that rather than one large meteorite striking the ground at a high velocity, a lower velocity, pancake-shaped swarm of meteorite pieces -- formed from the explosion a larger meteorite -- likely carved out Meteor Crater.  |
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 September 2006 Kathryn Hansen |
Opportunity Reaches Martian Crater Cameras aboard NASA's Mars rover Opportunity captured the vast expanse of Victoria crater.  |
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 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.  |
Geotimes October 2004 Megan Sever |
Mount St. Helens Alert Level Lowered On Wednesday morning, the U.S. Geological Survey lowered the alert level for Mount St. Helens in Washington from a Level 3 Volcano Alert to a Level 2 Volcano Advisory.  |
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 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.  |
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.  |
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 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.  |
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.  |
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 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 16, 2005 Barry E. DiGregorio |
Doubts on Dinosaurs Yucatan impact crater may have occurred before the dinosaurs went extinct.  |
Geotimes November 2005 Kathryn Hansen |
Comet Full of Fluff Investigations will turn up many clues as researchers have only started to sift through the data uncovered from the Deep Impact crater.  |
Geotimes October 2004 Sever, Pratt & Libick |
Mount St. Helens Activity Updates Updates on Mt. St. Helens activity from October 1 to October 14.  |
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.  |
Geotimes January 2004 John E. Warme |
The Many Faces of the Alamo Impact Breccia The Alamo impact 370 million years ago resulted in one of the best-exposed and well-dated impact deposits and a full-scale physical model for understanding wet impacts: the Alamo Breccia.  |
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.  |
Popular Mechanics January 18, 2008 Jennifer Bogo |
Inside NASA's Mega Flyby of Mercury's Dark Side NASA's new Messenger spacecraft will conduct a full scientific investigation of Mercury's surface.  |
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?  |
IEEE Spectrum January 2008 Barry E. DiGregorio |
No Asteroid Impact on Mars After All The expected asteroid impact would have let scientists study crater formation and underlying Martian geology.  |
Geotimes August 2007 Carolyn Gramling |
More on Mars The last few months have held many new discoveries on Mars, including new images of the planet's landslides, caves and polar geysers from the Mars rover, which are giving scientists a closer look at the red planet than ever before.  |
Geotimes October 2004 Pratt & Lubick |
Mount St. Helens Could Erupt in Days to Months In the next few days to a month, there's a 70 percent chance that a small to moderate eruption event will happen at Mount St. Helens, site of the violent and deadly eruption of May 18, 1980.  |
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 March 2004 |
NASA says Mars once drenched in water Scientists from NASA's Mars explorer projects announced today that they had found definitive evidence for "a lot of water" at some point in the planet's history.  |
Outside February 2005 Mark Sundeen |
Eruptus Interruptus Step right up, ladies and gentlemen! Thar she... might blow! When Mount St. Helens threatened to go erupt again, disaster groupies rushed to the crater--and hoped for the worst.  |
Chemistry World November 18, 2009 Jon Cartwright |
NASA data point to icy moon Scientists operating NASA's LCROSS (lunar crater observation and sensing satellite) mission, part of which impacted the moon on live television last month, say that shadowy lunar craters almost certainly contain water ice.  |