Celebrating Earth Day in 2014
Apr22

Celebrating Earth Day in 2014

Me and milkweed fruit – my #NatureSelfie for #EarthDay. Nash Turley, a naturalist, photographer, musician, and PhD student in evolutionary ecology at the University of Toronto, snapped this shot in Ithaca, NY, in 2011. He tweeted, “Everyday is Earth Day; the fact that the calendar says today is ‘Earth Day’ doesn’t really mean anything to me. Sort of like how aboriginal cultures don’t have a word for ‘nature’ because they didn’t see themselves as separate from nature….the fact that we have a day for the Earth shows how disconnected modern societies are from ‘nature’.”
Earth Day started as a grassroots protest movement in 1970 and has solidified into an annual event. What does Earth Day mean in 2014?

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Landsat Data Continuity Mission launches
Feb19

Landsat Data Continuity Mission launches

Great day for a launch: all indications positive for Landsat 8. By Liza Lester, ESA communications officer.   AT 10:02am local time on Monday, February 11, 2013, the Landsat Data Continuity Mission (LDCM) launched from Vandenberg Air Force Base, California, into a clear blue sky atop an  Atlas V rocket. The latest USGS earth observatory satellite is a $855 million investment in the future of a 40-year continuous land imaging...

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Landsat 5 update: Thematic Mapper incommunicado
Jun05

Landsat 5 update: Thematic Mapper incommunicado

End of routine acquisitions for the Thematic Mapper, secondary sensor is still sending data. [update, March 2014: the Landsat 8 mission launched successfully last year and the new satellite is sending great data back home. USGS decommissioned Landsat 5 in 2013.] By Liza Lester, ESA communications officer. The US Geological Survey’s Landsat 5 Thematic Mapper has been a faithful friend to ecologists. Recoding image data in seven bands...

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Solutions for a nitrogen-soaked world

Overabundance of an essential nutrient is not always a good thing. - by Liza Lester, ESA communications officer. A tractor spreads manure. Excess fertilizer seeping out of fields has a host of consequences for ecological systems and human health. Credit, flickr user eutrophication&hypoxia, 2010.   NITROGEN is both an essential nutrient and a pollutant, a byproduct of fossil fuel combustion and a fertilizer that feeds...

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Goodbye, Landsat 5
Dec15

Goodbye, Landsat 5

This post contributed by Liza Lester, ESA communications officer Four hundred miles above the Earth’s surface, a satellite slides into lonely oblivion. After collecting and broadcasting earthly imagery for a remarkable quarter century past its expected 3-year lifespan, Landsat 5 is failing. Over the years, US Geological Survey engineers have contrived quite a few patches and work-arounds for malfunctions on board their distant charge,...

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