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Geotimes
April 2003
Dave Lawrence
Microfossil lineages support sloshy snowball Earth Whether Earth's surface was completely frozen over during the glaciations about 900 to 540 million years ago (a hardball) or experienced open water near the equator (a slushball) is up for debate. Recent research now suggests that slushball conditions were more likely. mark for My Articles similar articles
Chemistry World
April 16, 2009
Jon Cartwright
Isolated microbes survive for millions of years Researchers in the US and the UK have found microbes in the Antarctic that appear to have survived in isolation, without sunlight or new supplies of nutrients, for more than a million years. mark for My Articles similar articles
Geotimes
August 2006
Jennifer Yauck
Microbes Reshuffle Earth's Early History Previously, scientists used microfossil evidence to date the earliest eukaryotes to about 1.8 billion years old, and the earliest cyanobacteria to about 2.1 billion years old. Now, geologists present new evidence suggesting both types of organisms existed as early as 2.45 billion years ago. mark for My Articles similar articles
Geotimes
February 2007
Sally Adee
Escape From Snowball Earth Early Earth didn't do things half-way: It may or may not have ever been a solidly frozen "snowball" in the deep geological past, but it was never a half-frozen ball of slush, according to a new study. mark for My Articles similar articles
Geotimes
April 2005
Sara Pratt
Space Dust and Snowball Earth Within the spiral arms of the Milky Way galaxy are thousands of giant clouds of dust. Some researchers now say that these clouds collide with Earth every 140 million years, possibly explaining the causes of two distinct periods of widespread glaciation in the planet's geologic past. mark for My Articles similar articles
Wired
April 2000
Oliver Morton
Ice Station Vostok The fast track to the moons of Jupiter - and the key to life on Earth - is a prehistoric lake nearly three miles beneath the Antarctic ice cap. mark for My Articles similar articles
Geotimes
November 2007
Nicole Branan
Water Pours Through Pores in Sea Ice Scientists have come up with a new model that describes how water moves through the Arctic sea ice beneath melt ponds, helping them to make better climate predictions. mark for My Articles similar articles
Chemistry World
August 28, 2007
Tom Westgate
Repairing DNA Could Let Frozen Bacteria Survive for Millennia An international team of scientists believe they have strong evidence that bacteria trapped in permafrost are able to survive for hundreds of thousands of years by repairing their DNA. mark for My Articles similar articles
Geotimes
April 2005
Geomedia Arctic Climate Change in Photos... Book review: Frozen Earth: The Once and Future Story of Ice Ages by Doug Macdougall... Mapping Sinkhole Risk in Maryland... mark for My Articles similar articles
Smithsonian
October 2006
Anne Bolen
Life in the Field - Frozen in Time Glaciers in the Pacific Northwest have recorded hundreds of years of climate history, helping researchers plot how quickly the planet is warming. mark for My Articles similar articles
Geotimes
March 2006
Powell et al.
Drilling Back to the Future Antarctica plays a fundamental role in sea-level change and ocean chemistry, and has the potential for important societal impacts over human timescales. mark for My Articles similar articles
Geotimes
April 2007
Carolyn Gramling
Ice Twists Under Pressure Confined inside tiny, hollow cylinders called carbon nanotubes, and subjected to high pressures similar to those found at a planet's core, water freezes into tiny ice spirals that resemble the DNA double helix, a new study shows. mark for My Articles similar articles
Geotimes
October 2007
Moran & Backman
The Arctic Ocean: So Much We Still Don't Know In 2004, the Arctic Coring Expedition team took three ships to the Arctic to drill a core near the Lomonosov Ridge. The team's results are teaching us more than we ever knew about the past 65 million years in the Arctic. mark for My Articles similar articles
Geotimes
August 2004
Naomi Lubick
Doubling the Ice Record A team of European researchers released their first round of results from the longest ice core ever to be recovered from a polar glacier. Measurements show some interesting temperature shifts that may cause climatologists to reevaluate their models. mark for My Articles similar articles
HHMI Bulletin
Fall 2012
Virginia Hughes
Dianne Newman: Connecting Cultures Medical and environmental microbiologists have separate scientific cultures, but the same he same methods geochemists apply to sediments and ice cores can be tweaked for cells, tissues, and organs. mark for My Articles similar articles
Scientific American
July 2008
Peter Brown
NASA Satellites Watch Polar Ice Shelf Break into Crushed Ice Ice is melting at the poles much faster than climate models predict. mark for My Articles similar articles
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. mark for My Articles similar articles
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? mark for My Articles similar articles
IEEE Spectrum
February 2013
Dave Levitan
Laser Eyes Spy a Big Melt in the Arctic Airborne altimeters yield a disturbing picture of polar ice loss mark for My Articles similar articles
Chemistry World
November 29, 2012
Jon Evans
Messenger spots Mercury performing organic chemistry Nasa's Messenger spacecraft has uncovered evidence that not only does water ice exist on the surface of the planet Mercury, but in many places this ice appears to be covered in a 10cm-thick layer of soot-like organic material. mark for My Articles similar articles
Popular Mechanics
December 16, 2008
Matthew Hutson
5 Projects Ask if Life on Earth Began as Alien Life in Space For years, scientists have considered the possibility of exogenesis, the idea that life arrived on Earth from another planet, and not just the building blocks of life, but organisms that were ready to rock and roll when they arrived. mark for My Articles similar articles
Geotimes
March 2005
Naomi Lubick
Paleo-Antarctic Puzzle Even though Antarctica was at the south pole around 35 million years ago, it was warm and relatively ice free. What exactly caused its shift to a deep freeze has long puzzled paleoclimatologists. mark for My Articles similar articles
Geotimes
January 2004
Naomi Lubick
Longer polar ice record Geoscientists have beefed up a dataset documenting ice cover at Earth's poles, revealing a longer and slightly different picture than painted in the past by satellite observations. mark for My Articles similar articles
Geotimes
June 2006
Katie Unger
Ancient Methane-Makers Researchers extracted methane gas from hydrothermal dikes in Western Australia and say that microbes produced the gas, which is evidence of some of Earth's earliest life. mark for My Articles similar articles
Chemistry World
January 23, 2013
Chemical climate proxies With the climate change debate as heated as ever, how do scientists reconstruct what the weather was like in the past? Jon Evans looks at the detective chemistry behind such environmental forensic work mark for My Articles similar articles
Chemistry World
March 2006
Katie Gibb
Extreme Analysis High pressures, cold temperatures and inaccessible samples all make analytical work challenging for chemists. Science still has a lot to gain from studying and working in extreme environments. mark for My Articles similar articles
Smithsonian
July 2007
J. Madeleine Nash
Chronicling the Ice Long before global warming became a cause celebre, Lonnie Thompson was extracting climate secrets from ancient glaciers. He finds the problem is even more profound than you might have thought. mark for My Articles similar articles
Geotimes
June 2005
Geomedia Selling Extreme Life on the Extreme Screen... Books: Earth: An Intimate History... On the Shelf: Climate Change Picks from Kim Stanley Robinson... Maps: New View of North America... etc. mark for My Articles similar articles
Popular Mechanics
March 15, 2010
Trevor Williams
Iceberg Forensics: Predicting the Planet's Future With Antarctic Ice Something new is happening with the ice streams and glaciers. They are getting thinner, and they are getting thinner because they are speeding up. mark for My Articles similar articles
Chemistry World
April 9, 2009
Lewis Brindley
'Nickel famine' caused ancient oxygen rise A crucial increase in atmospheric oxygen that occurred around 2.4 billion years ago could have been triggered by a shortage of nickel in the oceans, according to Canadian researchers. mark for My Articles similar articles
Wired
September 22, 2008
Damon Tabor
Scientists May Soon Outnumber Penguins at Earth's Poles Tens of thousands of scientists are zipping up their parkas for the latest International Polar Year initiative. mark for My Articles similar articles
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. mark for My Articles similar articles
Popular Mechanics
March 18, 2009
Andrew Moseman
Mars Researchers Take an Arctic Road Trip This trip is meant to be a dry run for an even more extreme environment -- the surface of Mars. mark for My Articles similar articles
Popular Mechanics
February 19, 2010
Trevor Williams
On Thick Ice: Live From An Antarctic Drilling Trip The Integrated Ocean Drilling Program is exploring the ocean floor around Antarctica to learn how the ice sheet reacted in warmer climates of the past and how they might respond to future warming. mark for My Articles similar articles
Chemistry World
November 10, 2010
Mike Brown
Sulfur story unearths oxygen environment Earth's atmosphere could have supported complex life 400 million years earlier than thought, according to sulfur isotope signatures found in some of the oldest rocks on Earth. mark for My Articles similar articles
Scientific American
September 2008
Krista West
Researchers hone seismic skills to peer inside glaciers Seismic data enable scientists to peer inside melting glaciers before they calve mark for My Articles similar articles
Geotimes
June 2005
Megan Sever
Odd Microbes at Yellowstone Researchers recently found in Yellowstone National Park what could provide clues to finding life on other planets: a thin layer of living and fossilized microbes just beneath a rock's surface. mark for My Articles similar articles
Outside
October 2002
Ian Frazier
Terminal Ice Hot enough for you? Go to the bottom of the planet -- or the top -- and you can't miss the warning signs of a warm apocalypse. And at the heart of the mystery, like broken shards of a colder climate, float the icebergs, ghost-white messengers trying to tell us something we can't fathom. mark for My Articles similar articles
Geotimes
May 2007
Kathryn Hansen
Martian Pole Boasts Icy Detail A new map of Mars' south pole revealed that the ice cap is composed almost entirely of water ice and measures up to 3.7 kilometers thick. mark for My Articles similar articles
Geotimes
March 2006
Naomi Lubick
Ice Hunter: Q&A With Lonnie Thompson An interview with glaciologist and Byrd Polar Research Center scientist Lonnie Thompson about what it mean to hunt ice and about some his current work. mark for My Articles similar articles
Geotimes
December 2004
Sara Pratt
Antarctic Ice Connections The West Antarctic ice sheet contains 3.2 million cubic kilometers of ice. Were it to collapse due to global warming, it would raise global sea level by 5 meters, catastrophically inundating low-lying areas. mark for My Articles similar articles
Geotimes
April 2004
Early volcanic living? Microbes thrive in unexpected places, including seafloor hotspots, where energy and nutrients from hydrothermal vents or volcanic activity make life easy. mark for My Articles similar articles
Outside
February 2004
Natasha Singer
Break On Through The dream of a Northwest Passage linking the Atlantic to the riches of Asia has driven explorers and visionary adventurers for centuries. With climate change in the air, The author braves the frigid 900-mile journey to find out if the old, mythic dream is becoming an epic new reality. mark for My Articles similar articles
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. mark for My Articles similar articles
IEEE Spectrum
September 2011
Paden et al.
A Next-Generation Ice Radar Scientists can now probe polar ice sheets better than ever using synthetic-aperture radar mark for My Articles similar articles
Chemistry World
February 13, 2014
Simon Poulton
The Earth as a cradle for life This enjoyable book by Stacey and Hodgkinson takes a long-term view of Earth's development as a habitable planet, incorporating physical, chemical and biological processes on the early Earth, to the modern world. mark for My Articles similar articles
Geotimes
May 2004
Naomi Lubick
Mineral-Making Microbes For the first time, researchers have found direct evidence that microbes can create templates for unique mineral growth. The discovery could inspire new avenues for materials research, as well as for the search for evidence of life on Earth and other planets. mark for My Articles similar articles
Geotimes
June 2007
Megan Sever
Antarctic Ice May be Grinding to a Halt Some of Antarctica's ice sheets may not be in as much danger as once thought. mark for My Articles similar articles
National Defense
December 2009
Austin Wright
Polar Ice Surveillance At Rock Bottom Prices University of Kansas researchers needed an unmanned aerial vehicle that could carry 120 pounds worth of radar equipment at low altitudes and over icy terrain to measure vital information for the Navy in Antarctica. mark for My Articles similar articles
Chemistry World
January 9, 2012
Simon Hadlington
A question mark over cubic ice's existence Chemistry textbooks may have to be rewritten after scientists in the UK showed that an exotic type of ice crystal formed from supercooled water has probably been misidentified and might not exist. mark for My Articles similar articles