An asteroid strike may not only account for the demise of ocean and land life 65 million years ago, but the fireball's path and the resulting dust, darkness and toxic metal contamination may explain the geographic ...
Mar 01, 2010
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Scientists still puzzle over how Earth emerged from its last ice age, an event that ushered in a warmer climate and the birth of human civilization. In the geological blink of an eye, ice sheets in the northern ...
Jun 25, 2010
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(Phys.org)—Humanity has landed a rover on Mars. Now, say scientists, it's time to land a boat on Titan. This outlandish scenario could become reality, according to engineers presenting their proposals at ...
Sep 28, 2012
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(Phys.org) —Comets visible to the naked eye are a rare delicacy in the celestial smorgasbord of objects in the nighttime sky. Scientists estimate that the opportunity to see one of these icy dirtballs advertising ...
Mar 08, 2013
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(PhysOrg.com) -- Comet McNaught is quickly approaching the sun this week, but it is visible with binoculars or telescopes in the early hours before dawn. The best views are away from city lights, according ...
Jun 21, 2010
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(PhysOrg.com) -- A team of scientists studying Antarctic ice cores have found surprising evidence of a fluctuating pattern of carbon monoxide concentrations in the Earth's atmosphere caused by biomass burning in the Southern ...
Dec 02, 2010
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At this time of year, after dark we in the northern hemisphere are able to see the mighty constellation of Orion rise high in the sky with a very bright companion in a nearby constellation: Sirius – The ...
Jan 17, 2012
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(Phys.org) —According to a newly-published NOAA-led study in Geophysical Research Letters, as the globe warms from rising atmospheric concentrations of greenhouse gases, more moisture in a warmer atmosp ...
Apr 05, 2013
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(PhysOrg.com) -- If past records regarding periods of warming and cooling climate are an accurate indication of weather patterns, then the southwestern United States is likely headed into a period of severe long-term drought ...
Jan 25, 2010
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(PhysOrg.com) -- Look out below! That's the warning a University of Alberta geophysics researcher has for hydrocarbon and water drillers after discovering uncharted land forms beneath the surface of the province. Deep valleys, ...
Oct 14, 2009
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Increasingly, the Earth's climate appears to be more connected than anyone would have imagined. El Nino, the weather pattern that originates in a patch of the equatorial Pacific, can spawn heat waves and droughts ...
Jun 17, 2010
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The annual Perseid meteor shower -- dubbed "the tears of St. Lawrence" in honour of a martyred Christian saint -- reaches its peak this weekend, astronomers said on Friday.
Aug 11, 2012
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(PhysOrg.com) -- NASA scientists analyzing 30 years of satellite data have found that the amount of ultraviolet (UV) radiation reaching Earth's surface has increased markedly over the last three decades. Most ...
Mar 16, 2010
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