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Geotimes May 2003 Lisa M. Pinsker |
Molten martian core The more researchers study Mars, the more similarities they seem to find between the Red Planet and Earth. The latest parallels come from the planet's enigmatic interior. |
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. |
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. |
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. |
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. |
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. |
Geotimes May 2007 Kathryn Hansen |
Deep Earth May Hold an Ocean Earth's deep interior, more than 1,000 kilometers below the surface in the mantle, could prove to be a watery place. That's the conclusion researchers drew from an anomaly uncovered by the first global map of Earth's lower mantle, using a new type of seismic analysis. |
Industrial Physicist Dec 2003/Jan 2004 Dawn Lenz |
Understanding and predicting space weather When streams of charged particles from the sun interact with the Earth's magnetic field, there can be serious consequences for electrical power grids, communications networks (radio, television, and telephone), and satellite operations. |
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? |
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 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 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. |
D-Lib April 2005 |
D-Lib Featured Collection April 2005: IMAGES Images acquired before and during a magnetic storm, showing the buildup of energetic particles surrounding the Earth during the storm's main phase. Courtesy of the IMAGE HENA Team and NASA. |
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 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. |
IEEE Spectrum August 2011 Mason Peck |
Exploring Space with Chip-sized Satellites The future of space exploration will include swarms of tiny spacecraft. |
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 June 2007 Carolyn Gramling |
Sun Cycle to Flare Back up in 2008 Although the new cycle is predicted to be moderate in intensity, scientists warn that it may still strongly impact space-based technologies. |
IEEE Spectrum December 2005 Bleier & Freund |
Earthquake Alarm Impending earthquakes have been sending us warning signals -- and people are finally starting to listen. |
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. |
Popular Mechanics June 17, 2009 Joe P. Hasler |
Do We Really Need Another Satellite Orbiting the Moon? It is a tale of two satellites, a shared destination, and two very different missions. |
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 July 2006 Kathryn Hansen |
Ship Logs Record Earth's Magnetism New information gleaned from old ships' logs is now leading to a better understanding of the magnetic field's past strength, which is turning out to be more erratic than some scientists previously thought. |
Geotimes August 2006 Carolyn Gramling |
Todd Hoeksema: A Flare for All Things Solar The researcher at the Wilcox Solar Observatory at Stanford University in California helped NASA create a new "roadmap" for future solar physics research. |
National Defense September 2010 Grace V. Jean |
Scientists Say They Are Closer Than Ever to Predicting Earthquakes Researchers have discovered that there are warning signs that can be detected in the weeks and hours prior to temblors. |
Chemistry World April 2006 Richard Corfield |
The Greenhouse in the Sky? Venus could be the ultimate example of what can happen when an atmospheric greenhouse effect runs away. The European Space Agency's Venus Express probe is focusing on understanding the planet's atmosphere. |
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. |
IEEE Spectrum October 2007 Saswato R. Das |
Military Experiments Target the Van Allen Belts The US armed forces will test whether RF injections into the ionosphere could halt geomagnetic storms. |
Scientific American November 7, 2005 Mark Alpert |
Red Star Rising Small, cool stars may be hot spots for life |
AskMen.com |
NASA Studying The Sun The most advanced solar observatory ever built rocketed into space Thursday on a five-year quest to shed light on Earth's star. |
Geotimes September 2004 Sara Pratt |
Solar Storms Strip Water Off Mars For the first time, scientists have observed a solar superstorm with an array of spacecraft scattered throughout the solar system providing data that may help to explain the disappearance of water from Mars. |
Science News August 12, 2000 |
TimeLine: August 9, 1930 A Fish With Hands... Little Eros on Way to Visit Earth... Birthplace of the Moon... |
Geotimes October 2005 Naomi Lubick |
Moon Soil, Earth Air? Apollo astronauts brought back samples of soil from the moon that contained unexpectedly high levels of nitrogen. New research is shedding light on the anomaly. |
IEEE Spectrum April 2007 Sandra Upson |
U.S. Earth-Sensing Satellites Left Out In the Cold The degree of precision needed to forecast hurricanes, and the future accuracy of climate modeling as well, may be in danger if recent trends in Earth-observing satellite programs persist. |
Geotimes November 2003 Helz et al. |
SAR: A Versatile New Tool for Earth Science Widespread availability of data from synthetic aperture radar has permitted the technology's application to a broad range of geoscience problems. The field has blossomed in the last decade. |
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. |
IEEE Spectrum November 2006 Justin Mullins |
The Case of Earth's Incredible Shrinking Field Data hidden in the logbooks of 16th, 17th, and 18th century ships have allowed geophysicists to build a picture of the Earth's magnetic field in the centuries before detailed measurements were possible. |
IEEE Spectrum April 2013 Jean Kumagai |
Protecting the Power Grid From Solar Storms New spacecraft will aid forecasts of space weather. |
Geotimes December 2003 Megan Sever |
A year of global ice observations Scientists are now getting the most accurate view ever of changes in the Antarctic and Greenland ice sheets. The new maps, using NASA's Ice, Cloud and Land Elevation Satellite, are shedding light on the processes controlling these ice masses, which comprise 75 percent of Earth's freshwater. |
AskMen.com |
Earth-Like Planet Found Astronomers have finally found a place outside our solar system where there's a firm place to stand -- if only it weren't so broiling hot. |
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. |
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. |
Wired March 24, 2008 Erin Biba |
Prepare for the Worst, Because Solar Storms Are About to Get Ugly Scientists discovered a signal that solar windstorms are on the way and some are predicting that at its peak (in about four years) things are gonna get nasty. |
IEEE Spectrum September 2007 Saswato R. Das |
Killer Electrons From Outer Space Accurate space-weather forecasts could come from knowing the cause of super-fast electrons in the Van Allen belts. |
Geotimes July 2004 Sara Pratt |
Core Compositions Scientists are working to explain the differences in composition between Earth and 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 |
National Defense February 2009 Grace V. Jean |
Getting to the Bottom of Global Warming -- From Space The first of several satellites designed to monitor Earth's greenhouse gases has reached orbit and will begin collecting data in the coming months. |
Geotimes June 2005 Naomi Lubick |
Double-Crossing the Core A team of scientists has taken the properties of a mineral from the Earth's lower mantle, together with seismic observations of the core-mantle boundary, to propose a new model that could elucidate the heat engine that drives Earth. |
National Defense October 2010 Eric Beidel |
Satellite System Rides the Solar Wind A new system for observing space weather is bringing scientists closer to making accurate forecasts for conditions beyond Earth's atmosphere. |
Chemistry World December 2009 Jon Cartright |
Reading between the lines Since its emergence in the mid 19th century, spectroscopy has become the most important tool in astronomy, and in recent years there has been no end to its new discoveries. |