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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	Extinction debate continues Did the Chicxulub impact off the Yucatan coast in Mexico kill the dinosaurs 65 million years ago?
Scientific American May 16, 2005 Barry E. DiGregorio	Doubts on Dinosaurs Yucatan impact crater may have occurred before the dinosaurs went extinct.
Geotimes January 2004 Megan Sever	Charcoal clues in dinosaur debate While new research is intriguing, say some geochemists, it is premature to throw out the whole global fire hypothesis that has been developed to explain evidence at the Cretaceous-Tertiary boundary.
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 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 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.
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 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.
Chemistry World March 11, 2014 Tim Wogan	Dinosaur mass extinction may have been triggered by acid rain Most scientists accept the principal cause of the Cretaceous -- Tertiary mass extinction was a 10km asteroid hitting the Yucatan peninsula, but the precise mechanism by which this caused the extinction remains controversial.
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.
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 August 2004 Sara Pratt	Burrowing K/T Survivors When it comes to the mass extinction that marked the Cretaceous/Tertiary (K/T) boundary 65 million years ago, what it all came down to, researchers say, is that only those who hid had a chance to survive.
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.
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.
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.
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 2003 Sara Pratt	Tertiary acid rain survivors Now geochemists Teruyuki Maruoka, of Washington University in St. Louis, Mo., and Christian Koeberl, of the University of Vienna in Austria, have revisited the longstanding question of how some freshwater species could have survived rain with a pH potentially as low as battery acid.
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 June 2004 Jay Chapman	Evidence for Impact Winter at K/T Boundary Scientist and co-workers hope their research will revitalize interest in the impact-winter hypothesis and help resolve some of the questions swirling around the Cretaceous-Tertiary (K/T) mass extinction theory.
Geotimes September 2006 Kathryn Hansen	Opportunity Reaches Martian Crater Cameras aboard NASA's Mars rover Opportunity captured the vast expanse of Victoria crater.
Geotimes September 2006 Carolyn Gramling	All Aboard the School of Rock The JOIDES Resolution, a 143-meter drill ship originally designed for oil exploration and converted for scientific exploration of the ocean floor, now has another new gig: It doubles as a floating classroom for earth science educators.
National Defense February 2016 Stew Magnuson	Planetary Defense: A New Hot Market With little fanfare, NASA in January opened up its planetary defense coordination office with a mandate to identify potential chunks of rock hurdling toward Earth and to stop them if possible.
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.
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 December 2004 Naomi Lubick	Evidence for Water on Mars Flows Scientists have further confirmed the presence of water on Mars, almost a year after the Mars Exploration Rovers landed on the fourth rocky planet from the sun. And exploration continues to see further signs of water on Mars, from the ground to the sky.
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 March 2006 Kathryn Hansen	Cancun and Beyond Look beyond the typical vacation of lounging on the resort beaches of Cancun and be sure to venture south and explore some Maya ruins as well as the region's remarkable system of caves and sinkholes.
Popular Mechanics November 13, 2009 Jeremy Jacquot	NASA Confirms There is Water on the Moon--But Where Did It Come From? By obtaining core samples like the ice cores collected by scientists in the Antarctic, it will be possible for scientists to study the climatic record of the moon and draw comparisons with the Earth's.
Geotimes January 2005 Joshua Zaffos	Honeybee Survival Stings Impact Theory The buzz over the causes of the mass extinction 65 million years ago is getting louder. Now, a paleontology graduate student has found evidence in the survival of tiny honeybees that could be another sting to that theory.
Geotimes March 2004	The Global Lakes Drilling Effort A long history of research on relatively young lake basins illustrates the utility of studying lake sediments for information on such diverse topics as past climate, landscape modification, biological evolution, regional tectonics and hydrocarbon formation.
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.
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 March 2003 Matthew Shindell	Pictures of snow from the Red Planet Exactly how you carve gullies in the Martian environment is the million dollar question. Planetary geologist Phil Christensen of Arizona State University proposed that snow is the answer.
Wired September 2002	Destination: Mars Where would you stake your claim on the great desert planet? Oliver Morton, author of the new book Mapping Mars, asks the experts.
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.
Scientific American March 13, 2005 Mark Alpert	Lunar Science NASA's plan to establish a permanent lunar base and use the program's technology to prepare a human mission to Mars hinges on a risky prediction: that astronauts will find water ice in a permanently shadowed crater basin at one of the moon's poles.
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.
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.
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.
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.