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Geotimes July 2007 Carolyn Gramling |
Mercury's Gooey Center Mercury, the closest planet to the sun, has a large core, which scientists now know is partially molten and therefore could create a magnetic field around the planet. |
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. |
Science News September 20, 2003 |
More Mars -- Better than Ever On Aug. 27, Mars and Earth were closer to each other than at any other time in the last 50,000 years. Even as Earth and Mars slowly draw apart, the Red Planet remains a dazzling sight in the night sky. There's still time to take in the view. |
Geotimes July 2004 Sara Pratt |
Core Compositions Scientists are working to explain the differences in composition between Earth and Mars. |
Chemistry World April 6, 2011 Mike Brown |
Mars chemistry reveals how red planet cooled The chemistry of volcanic rock on Mars offers a picture of the thermal history of the planet, according to scientists in France. The findings could provide a reference point for the evolution of other planets, they say. |
Geotimes May 2004 Sara Pratt |
Deciphering Planetary Magnetism Neptune and Uranus both have unusual magnetic fields that tilt at a 60-degree angle toward their equators. Scientists are now able to model the processes that shape the planets' magnetism. |
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? |
Fast Company Neal Ungerleider |
NASA: "There Is Liquid Water Today On The Surface Of Mars" This is huge news for space agencies worldwide, and could make it easier to look for signs of life on the red planet. |
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 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. |
Chemistry World December 19, 2008 Lewis Brindley |
Carbonates Confirmed on Mars New snapshots of Mars appear to show large outcrops of carbonate-bearing rocks, indicating that regions of the Red Planet could once have been an ideal environment for life to thrive. |
Popular Mechanics September 2008 Joe Pappalardo |
30-Ton Metal Sphere Spins for Magnetic Fields (With Video!) Building a test planet takes serious engineering. Researchers at the University of Maryland have constructed a 30-ton sphere that spins at more than 90 mph to generate magnetic fields. |
Chemistry World May 13, 2014 Tim Wogan |
Chemistry calculations reveal Earth's inner core Theoretical calculations have confirmed that the Earth's core contains a significant proportion of oxygen. |
Geotimes January 2007 Nicole Branan |
Heat Flow Causes Magnetic Reversals Earth's magnetic field has done hundreds of somersaults over the last few billion years. A new study sheds some light on what causes the geomagnetic field to flip. |
Chemistry World May 25, 2011 Simon Hadlington |
Mars is the planet that never grew up Scientists in the US have analysed isotopes in meteorites that resemble Martian geology and have discovered that the planet stopped growing while its solar system siblings carried on developing. |
Popular Mechanics December 3, 2008 Glenn Harlan Reynolds |
Why I Hope There's No Life on Mars If Mars is lifeless, that will make exploring -- and later settling -- the planet much easier. |
Geotimes July 2003 Lisa M. Pinsker |
Challenging core ideas Earth's core has never been so popular -- first plastered over billboards to advertise the recent movie The Core, and now in press worldwide discussing David Stevenson's "modest proposal" to send a grapefruit-sized probe thousands of kilometers into the planet's mysterious core. |
IEEE Spectrum November 2007 Saswato R. Das |
Terraforming Mars The renewed focus on Mars has rejuvenated the idea of terraforming Mars, which once belonged to the realm of science fiction, but is becoming increasingly possible today. |
Scientific American November 2007 Robert Zubrin |
Don't Wreck the Mars Program Devoting all the funding to just one mission would be a mistake. |
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 November 2005 Sara Pratt |
Super-Rotation for Earth's Core A new earthquake study supports the 1996 finding that Earth's inner core is spinning faster than the planet's mantle and crust -- at a rate detectable on human timescales, but about one-third of the rate first suggested. |
T.H.E. Journal June 2006 |
Online Learning Students in grades 5-12 can explore the surface of Mars this summer with World Book's special online feature, "Exploring the Red Planet," dedicated to the 2003 series of missions to Mars. |
Scientific American September 2008 David Appell |
The Sun Will Eventually Engulf Earth--Maybe Researchers debate whether Earth will be swallowed by the sun as it expands into a red giant billions of years from now |
Science News March 10, 2001 Ivars Peterson |
Mayan Mars Mayan astronomers developed their own model to describe the motion of Mars with uncanny accuracy. Anthropologists from the U.S. have recently described evidence supporting the Mayan model... |
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? |
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. |
Wired July 2001 Tom McNichol |
The New Red Menace Robert Zubrin has a grand plan to turn the fourth planet into humanity's new frontier - within the next 10 years! Welcome to hell on, um, Mars... |
PC Magazine December 20, 2006 Sebastian Rupley |
A Toastier Mars Mars may currently be too chilly for human colonists, but a University of Arizona student named Rigel Woida is out to change that. |
Geotimes September 2005 Naomi Lubick |
Supercomputer Models Earth's Magnetic Field A team of researchers has made a step toward modeling the Earth's chaotic magnetic field behavior using one of the largest supercomputers on the planet to run the most realistic model yet. |
Geotimes May 2003 |
Martian Field Trips on Earth Many researchers look to Earth for examples of or contrasts to what we're seeing of the Red Planet. |
T.H.E. Journal April 2005 |
JASON Expedition: Mysteries of Earth and Mars This program challenges students and teachers in grades 5-8 to learn about Earth and Mars by investigating comparisons between the two planets. |
Chemistry World September 28, 2015 Matthew Gunther |
Flowing salty brine found on Mars Scientists in the US have discovered the presence of salty brine in a network of streaks that grow and fade with the seasons on the hilly terrain of Mars. |
Geotimes October 2003 Naomi Lubick |
Water clues from martian carbonates For the first time, scientists have convincingly detected small yet possibly widespread amounts of carbonate minerals in the dust on Mars' surface. The findings provide new hints about water on Mars, as well as the history of the planet's atmosphere. |
Chemistry World September 30, 2011 Jon Cartwright |
Messenger Sheds Light on Mercury's Formation NASA's Messenger spacecraft is bringing new understanding to the question of how Mercury formed. The new information looks set to rewrite theories about the birth of the solar system's smallest planet. |
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 March 2006 Naomi Lubick |
Starry Lens A newly discovered planet may be the most Earth-like planet found to date outside our solar system. The discovery confirms the value of a relatively new detection method known as gravitational lensing. |
Chemistry World October 16, 2012 Simon Hadlington |
Cheers as Mars x-ray spectrometer delivers rock data Space scientists are celebrating the arrival of the first set of data from the Mars Curiosity Rover's alpha-particle x-ray spectrometer -- APXS -- which has analyzed the chemical composition of a small triangular wedge of rock on the surface of the planet. |
IEEE Spectrum August 2006 Stephen Cass |
Summer Reading Hollow Earth: The Long and Curious History of Imagining Strange Lands, Fantastical Creatures, Advanced Civilizations, and Marvelous Machines Below the Earth's Surface by David Standish... Kids to Space: A Space Traveler's Guide by Lonnie Jones Schorer... etc. |
Geotimes March 2006 Kathryn Hansen |
Closing in on Mars A camera aboard NASA's Mars Reconnaissance Orbiter spacecraft returned its first four images to Earth, and astronomers say they were "thrilled" with the results. |
Military & Aerospace Electronics January 2006 |
Orbiter Tracks Changes on Mars NASA's Mars Global Surveyor, which this month began its ninth year in orbit around Mars, continues to observe the Martian landscape. |
Chemistry World September 12, 2008 Hayley Birch |
Q and A: The hunt for water on Mars The Phoenix Lander has been digging for water on Mars since late May 2008. Yet despite the best efforts of the NASA scientists at the controls, the solar-powered robot has hit nothing but ice. |
Popular Mechanics October 15, 2008 Andrew Moseman |
As Phoenix Mission Ends, Project Leaders Chart Mars Future The Phoenix is now racing against time to complete more of its groundbreaking research before the harsh martian winter brings its death, said the project's science leader, Peter Smith of the University of Arizona. |
Chemistry World April 16, 2015 Tim Wogan |
Early Earth collision could clear up two geological mysteries Two seemingly unconnected geology problems -- the unexpected ratio of two neodymium isotopes in terrestrial rocks and the energy source for the dynamo that creates Earth's magnetic field -- could be solved by a new theory. |
Popular Mechanics July 2, 2009 Andrew Moseman |
The Truth About Water on Mars: 5 New Findings Phoenix reveals much about water, but there's a lot left to learn -- especially about the big question: the possibility of life in Mars. |
Wired December 2004 Kim Stanley Robinson |
Taming the Red Planet Terraforming Mars - grafting an Earth-like atmosphere and ecology onto that rocky and poisonous planet - remains a great idea that is likely to become one of the supreme engineering projects of humankind. |
Geotimes April 2003 Christina Reed |
Watching The Core: A movie review Geotimes went to the movies with four geophysicists from the Carnegie Institution of Washington to see the new blockbuster movie The Core. With Hollywood blaming its newest apocalypse on Earth's core, we couldn't resist. |
Chemistry World July 3, 2015 |
Getting the measure of Mars Sophisticated analytical chemistry is studying the history -- and habitability -- of our neighboring planet, as Andy Extance discovers. |
Geotimes June 2007 Kathryn Hansen |
So, When Did Earth Become Attractive? Ever since Earth's protective field was discovered in 1958, scientists have been wondering when did the planet grow up and become attractive? |
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. |
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. |