Printer Friendly

Browse Earth topic

Natural history subtopic


1-78 out of 78 article(s)
Title Author Type Date Words
Airglow: A Halo Around Our Earth! Nov 19, 2018 554
A Nebulous Existence: For both Venus and Earth, life's last refuge might lie in the clouds. Grinspoon, David Nov 1, 2018 590
Earth's Changing Magnetic Field. Naeye, Robert Mar 1, 2018 3115
What Is The Ring Of Fire? Feb 2, 2018 691
The Missing Element In Earth's Core. Jan 22, 2017 615
December 1966. Sinnott, Roger W. Brief article Dec 1, 2016 154
Evidence mounts for ancient comet: impact 56 million years ago may have kicked off warming. Sumner, Thomas Oct 29, 2016 343
Young, hot Earth kept gold in mantle: sulfur later ushered precious metals into core, study argues. Witze, Alexandra Oct 29, 2016 478
Methane didn't keep ancient Earth warm, new simulation suggests. Sumner, Thomas Brief article Oct 29, 2016 218
Storm unleashes rare seismic wave: tracking weak tremors could shed light on Earth's innards. Sumner, Thomas Oct 1, 2016 453
It's all relative. Brief article Aug 20, 2016 257
Falling through Earth would be a drag: air resistance, friction reduce velocity toward planet's core. Conover, Emily Aug 6, 2016 458
Earth's iron-lovers: geochemists explore platinum, gold and other rare elements to understand the planet's evolution. Witze, Alexandra Aug 6, 2016 2736
Supernovae: long-ago blasts littered earth. Hall, Shannon Aug 1, 2016 519
Earth is young at heart. Conover, Emily Brief article Jun 25, 2016 219
Relics of Earth's birth still linger: traces of ancient isotope give insight into planet's origin. Geiger, Beth Jun 11, 2016 359
Our Earth's Orbiting Junk Yard! Jan 28, 2016 620
Earlier origin for earth's center: innermost core formed soon after planet did, study finds. Sumner, Thomas Jan 23, 2016 561
Boring billions. Brief article Jan 23, 2016 277
Gooey mantle boundary discovered: region resists movement of magma plumes, sinking plates. Sumner, Thomas Jan 9, 2016 530
Free core nutation: new large disturbance and connection evidence with geomagnetic jerks. Malkin, Zinovy Report Jan 1, 2016 2574
Differentiation of the rotational movements of the European continent's Earth crust. Tretyak, Kornyliy; Vovk, Andriy Report Jan 1, 2016 4735
Magnetic poles not about to flip: earth's weakening field is a return to normal, study finds. Sumner, Thomas Dec 26, 2015 408
Moon might have formed in 2 stages: chemicals missing from lunar rocks may be under crust. Crockett, Christopher Dec 12, 2015 432
Origin of Earth's water questioned: deuterium levels in mantle suggest comets not the source. Sumner, Thomas Dec 12, 2015 570
Earth's (not so boring) boring billion: when the planet's oxygen was scarce, animals may have emerged under the radar. Sumner, Thomas Nov 14, 2015 2665
Spaceship earth. Peterson, Donald H. Essay Jun 22, 2015 1289
Earth: give-and-take origin for oceans? Beatty, J. Kelly Apr 1, 2015 562
Earth's crust shifts over slippery base: weak rock layer may help plates slide around planet. Sumner, Thomas Mar 7, 2015 666
New Secrets At The Center Of The Earth. Feb 12, 2015 511
Gamma-ray bursts bad news for life: Earth may have been zapped, leading to mass extinctions. Grant, Andrew Jan 10, 2015 439
Alternate way to make oxygen found: process may alter view of how Earth's atmosphere formed. Mole, Beth Nov 15, 2014 444
Impacts probably stifled early life: giant asteroids hit Earth until about 4.3 billion years ago. Sumner, Thomas Aug 23, 2014 586
Water permeates Earth's interior: blue mineral offers peek at conditions inside the mantle. Ehrenberg, Rachel Jul 12, 2014 589
Wee minerals may have shaped plates: damaged rock may explain origin of Earth's tectonics. Lubick, Naomi May 17, 2014 498
End of the earth's oceans? A billion years from now, solar radiation will have set the Earth's oceans aboil. Hetrick, Keturah May 1, 2014 372
Eye in the sky: NASA images show before-and-after scenes of Earth. Popkin, Gabriel Brief article Feb 8, 2014 216
Rise of oxygen on Earth pushed back: gas was present in the planet's atmosphere 3 billion years ago. Shugart, Jessica Oct 19, 2013 543
Cometlike crashes produce building blocks of life. Shugart, Jessica Brief article Oct 19, 2013 152
Exploring Earth's alien spaces. Witze, Alexandra Oct 5, 2013 593
Faint young Sun? No problem. Beatty, J. Kelly Brief article Oct 1, 2013 266
Day length changes every six years: cycles in rotation speed suggest Earth's core plays a role. Gelling, Cristy Aug 24, 2013 340
Earth and Moon shared water. Beatty, J. Kelly Brief article Aug 1, 2013 167
Buried crustal remnants last eons. Wayman, Erin Brief article May 18, 2013 171
Faint young sun: scientists struggle to understand how early Earth stayed warm enough for liquid water. Wayman, Erin May 4, 2013 2912
It all started with Mariner 2: fifty years ago this August, with the launch of Mariner 2 toward Venus, something profoundly new appeared around the Sun. Grinspoon, David Oct 1, 2012 565
Weighty matters. Goudarzi, Sara Brief article Aug 21, 2012 293
Earth's beating lasted longer: bombardment persisted over 2 billion years, analysis finds. Drake, Nadia Jun 2, 2012 401
Fast earthquakes reveal Earth is off centre. Shaw, David Brief article Mar 1, 2012 240
Comet water for a parched earth. Brief article Jan 1, 2012 303
How alien astronomers could find earth: we could make it easier for our counterparts on distant planets to find evidence of our existence. But it would be a massive undertaking for us. Lazio, Joseph Jan 1, 2012 3461
Earth. Dec 31, 2011 453
Structural, metamorphic and magmatic evolution of the SE Tibetan crust. Author abstract Dec 31, 2011 572
Cenozoic Bimodal Volcanic Rocks of the Northeast boundary of Tibet Plateau: implication for the collision-deduced mantle flow in Tibetan Plateau and the rifting genesis of North- south tectonic belt. Author abstract Dec 31, 2011 546
Earthly riches may be heaven-sent: meteorites possibly peppered planet with precious metals. Powell, Devin Brief article Oct 8, 2011 259
Planetary changes of the fourth kind: studying the terraforming of other planets can help us survive on Earth. Grinspoon, David Column Oct 1, 2011 564
Messenger pays a yearlong visit to Mercury. Cowen, Ron May 21, 2011 1347
Liguid acquisition: two new scenarios ramp up debate over how Earth got its water. Cowen, Ron Jan 15, 2011 2702
Where we're really going. MacRobert, Alan Brief article Aug 1, 2010 279
From the Big Bang to Baku: A Primer on the Beginnings of the Petroleum End Times. Essay Jun 22, 2010 7216
From the beginning. Flannery, Maura C. Column Feb 1, 2010 4052
Ocean of the future: an East African desert will one day become an ocean. Norlander, Britt Jan 1, 2010 692
Icy asteroid. Cowen, Ron Brief article Nov 7, 2009 84
Atmosphere took roller-coaster ride around time of Earth's oxygenation: minerals hint that levels of the gas rose, dipped, rose again. Perkins, Sid Oct 10, 2009 451
The new habitable zones; microbes could thrive in all sorts of "impossible" places on other worlds. Could larger creatures too? Impey, Chris Cover story Oct 1, 2009 2811
Monkeying with the world: for long-term survival, humans will need to be planetary engineers. Grinspoon, David May 1, 2009 548
Living dangerously: the same forces that make Earth hazardous also make it an abode for life. Grinspoon, David Feb 1, 2009 580
On the tidal evolution of the Earth-Moon system: a cosmological model. Arbab, Arbab I. Report Jan 1, 2009 3780
Aged crust. Perkins, Sid Report Oct 11, 2008 103
Tiny diamonds may set earlier date for first life: carbon isotope ratios suggest biological activity. Perkins, Sid Aug 2, 2008 448
And then there was life: our national parks trace life's evolutionary path. Lanting, Frans Sep 22, 2007 847
Astrobiology. Topic overview Jan 1, 2007 16041
Rocky road. Carswell, Lindsay Brief Article Sep 20, 2004 157
Ancient formation shows glacier activity. (Snowball Melting?). Marzuola, C. Oct 19, 2002 439
A Sunspot-Climate Link? Brief Article Nov 1, 1999 515
Crater chains on Earth? Jan 1, 1997 475
Plants: definitely for the better. Aug 19, 1989 190

Terms of use | Privacy policy | Copyright © 2021 Farlex, Inc. | Feedback | For webmasters |