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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 |
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 January 2004 Richard P. Binzel |
Asteroid Futures The efforts to locate large asteroids that might impact Earth, and what could be done if a threat was found. |
Science News March 27, 2004 Ivars Peterson |
Pinpointing Killer Asteroids Astronomers have identified more than 230,000 asteroids in orbit around the sun, and the number is increasing daily. Some of these objects are on courses that could lead to a collision with Earth. If the asteroid is sufficiently large, the results could be catastrophic. |
Geotimes March 2005 Joseph Richard Gutheinz |
Marketing an Asteroid Threat NASA would prefer to market its successes, but with a mixed bag of successes and failures lately, they have opted for a new public relations ploy: fear -- whether it be fear of the environment or fear of asteroids. |
Geotimes June 2005 Sara Pratt |
Revising the Asteroid Threat Scale Although scientists still assign Torino Impact Hazard Scale values via the same method, the language used to describe some levels has now changed to better inform the public -- and the media -- of the risk without unintentionally scaring people. |
Popular Mechanics October 9, 2008 Thomas D. Jones |
Why the World Needs Asteroid Insurance: Resident Astronaut Meteors, or bolides, strike Earth routinely, part of the hundred tons or so of cosmic debris that rain down on us every day. We orbit the Sun in a cosmic shooting gallery |
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 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 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. |
Fast Company Pavithra Mohan |
NASA's New Office Wants To Save Earth From Asteroids In a move that could easily double as a plotline in a sci-fi flick, NASA has created a task force that will be charged with scouting for asteroids and other potentially devastating threats to planet Earth. |
Geotimes March 2006 Kathryn Hansen |
Young Planets Collide Size mattered, astronomers say, when it came to whether or not material in our early solar system stuck together to become today's terrestrial planets. New models suggest that collisions between large objects did not always result in those objects combining, as previously thought. |
Geotimes November 2003 |
Geophenomena New pursuit of near-Earth asteroids... Finding faults in Washington... |
Geotimes July 2007 Carolyn Gramling |
X-ray Eyes in the Sky Scientists are working on the next generation of low-orbiting satellites that they hope will see far past the Earth's surface and into its interior, to better understand the structure and composition of Earth's crust, mantle and core. |
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 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. |
IEEE Spectrum August 2007 Barry E. DiGregorio |
China Reaches For the Red Planet A joint project with Russia anticipates retrieving soil from the Martian moon Phobos. |
Wired December 2004 Patrick Di Justo |
Mysteries of the Cosmos The top 13 places to explore in outer space. |
Popular Mechanics December 2005 Aldrin & Noland |
Roadmap To Mars So far, NASA's plan to reach the red planet has been short on detail. Apollo astronaut Buzz Aldrin unveils his own step-by-step proposal for mankind's next giant leap. |
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 November 2007 Robert Zubrin |
Don't Wreck the Mars Program Devoting all the funding to just one mission would be a mistake. |
Geotimes July 2004 Jay Chapman |
Sliding into Saturn Late Wednesday night, the Cassini-Huygens spacecraft silently slipped through the outermost rings of Saturn and entered into orbit. By early Thursday morning, Cassini began transmitting strikingly elegant close-up images of Saturn's rings. |
Smithsonian July 2007 Eric Jaffe |
Life Beyond Earth An ocean on Mars. An Earth-like planet light years away. The evidence is mounting, but are astronomers ready to say we're not alone? |
Geotimes December 2005 |
Highlights 2005 -- Space Rovers still trucking... New "planetary" neighbors... Back to space... |
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. |
Military & Aerospace Electronics February 2005 John McHale |
The Moon, Mars and beyond... The Space Shuttle program is due to be replaced by the Crew Exploration Vehicle. |
Popular Mechanics March 2007 Jennifer Bogo |
NASA Mission Statement Q&A: Eyes on Earth Interview with a professor involved in a study to find out how Earth scientists view NASA's shifting priorities and how it may affect the study of the planet. |
Wired July 2003 Gregg Easterbrook |
We're All Gonna Die! But it won't be from germ warfare, runaway nanobots, or shifting magnetic poles. A skeptical guide to Doomsday. |
Geotimes July 2005 Lisa Pinsker |
Deep Impact Strikes Back The scientists at NASA's Jet Propulsion Laboratory (JPL) cheered yesterday as they received confirmation that the Deep Impact probe successfully hit its target, comet Tempel 1, after six months' and hundreds of millions of miles' worth of journey. |
Geotimes December 2006 |
Top Space News Stories of 2006 Titan's Earthly and Unearthly Features... Space Technologies Fly, Lift and Roll on...Deep Impact Still Impresses... etc. |
Salon.com June 29, 2001 Suzy Hansen |
We've got company Astronomer David Darling talks about the controversial science of astrobiology and the near-certainty that extraterrestrial life forms exist in our solar system... |
Popular Mechanics April 10, 2006 Benjamin Chertoff |
NASA Announces New Mission to the Moon NASA uses Lunar Reconnaissance Orbiter EELV launch vehicle as a lunar impactor in search for water ice in moon's poles. |
Smithsonian December 2006 Eric Jaffe |
Clues from a Comet The first mission to collect space matter from beyond the moon offers insights into the solar system's creation. |
Chemistry World April 28, 2010 Phillip Broadwith |
Frosty asteroid surprises astronomers Water and organic molecules on Earth could have been brought here by impacting asteroids and comets, say two groups of US astronomers. |
Geotimes August 2004 Naomi Lubick |
Slow Boat to a Small Planet For the first time in more than three decades, scientists are going to get a close-up view of Mercury, Earth's smallest neighbor and the rocky planet closest to the sun. |
Geotimes June 2005 Kathryn Hansen |
Orbital Shuffle for Early Solar System The solar system is now full of clues to its past, and astronomers, with the help of computer models, are finding new ways to link together previously unconnected observations to explain how the planetary system came to resemble what it is today. |
Popular Mechanics July 2007 Noah Shachtman |
How NASA's New Telescope Chases Planets NASA is launching its first-ever planet-hunting mission next year, sending the Kepler spacecraft on a quest to find 1000 more planets -- and 50 new Earths. |
Geotimes June 2004 Harrison H. Schmitt |
Space Exploration and Development: Why Humans? George Bush's new initiative places the president squarely in support of moving civilization into the solar system and "into the cosmos." |
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 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. |
Popular Mechanics May 27, 2008 Joe Pappalardo |
Phoenix Lander Doesn't Crash, Snaps Pix of Mars (With Gallery!) NASA's Phoenix Mars Lander successfully touched down on Sunday night in an unexplored region near the Martian north pole. |
Chemistry World August 25, 2011 Simon Hadlington |
Meteorites Are a Chip Off the Old Asteroid Block New findings confirm that the most common type of meteorite found on Earth derive from so-called stony or S-type asteroids. |
Science News January 17, 2004 Ivars Peterson |
Extreme Tides If Earth had been somewhat larger, it's possible that it would not have survived tides induced by its moon or even by an encounter with a passing asteroid. That's one scenario suggested by a recent investigation of a venerable equation that serves as a model for planetary tidal effects. |
Chemistry World November 10, 2011 Simon Hadlington |
All eyes turn towards asteroid for fly-by Asteroid 2005 YU55 passed within 325,000 km of the Earth, closer than the Moon, giving scientists an unprecedented opportunity to study the 400m wide lump of rock, which was traveling at more than 46,000 km per hour. |
Geotimes September 2006 Kathryn Hansen |
Opportunity Reaches Martian Crater Cameras aboard NASA's Mars rover Opportunity captured the vast expanse of Victoria crater. |
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 March 2004 |
Sedna: Newly sighted planetoid in the solar system At the edge of the solar system, astronomers have unexpectedly sighted an object slightly smaller and farther from the Sun than Pluto -- not quite another planet, but not a temporary visitor either. |
Wired August 2004 Erik Davis |
Mars Gone Wild Poring over pictures of the Red Planet, widely available online, millions of amateur astronomers are coming up with their own Martian theories. |
Geotimes June 2004 Sara Pratt |
Why the Wobble? A new study says that the shifting of masses of water and ice around the globe's surface primarily drives the seasonal wobbleon its axis. The finding could lead to new ways to monitor global change. |