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Star of the week: 61 Cygni, the Flying Star 27 Aug 2013 | 03:31 pm
This star, 61 Cygni is not among the brightest stars. In fact, it takes some effort just to find this star, because it is not much brighter than the faintest stars visible to the unaided human eye. Ho...
Milky Way in moonless sky 27 Aug 2013 | 02:12 pm
Photograph of the Milky Way as seen over the mountains in Brazil thanks to EarthSky Facebook friend Pedro Canovas Perez. With the moon gone from the evening sky, this is an excellent time to trek out...
Look toward the center of the Milky Way galaxy 27 Aug 2013 | 12:01 pm
Today’s chart (top of post) is aimed toward the galaxy’s center, which is located some 30,000 light-years away. Many people find it by locating the prominent asterism known as the Teapot in the conste...
Authenticating the world’s most expensive coffee 27 Aug 2013 | 01:12 am
The most expensive coffee in the world is called kopi luwak.. It fetches as much as $200 per pound, but, due to its high demand and soaringly high price tag, it has been plagued with fraudulent imitat...
Changes in river chemistry affect water supplies 26 Aug 2013 | 11:41 pm
Human activities are changing the basic chemistry of many rivers in the eastern U.S., with potentially major consequences for urban water supplies and aquatic ecosystems, a University of Maryland-led ...
Penn study finds earlier peak for Spain’s glaciers 26 Aug 2013 | 09:31 pm
The last glacial maximum was a time when Earth’s far northern and far southern latitudes were largely covered in ice sheets and sea levels were low. Over much of the planet, glaciers were at their gre...
Lowest temperature for life discovered 26 Aug 2013 | 07:56 pm
Photo credit: Anne Froehlich The study, published in PLoS One, reveals that below -20 °C, single-celled organisms dehydrate, sending them into a vitrified – glass-like – state during which they are u...
Bat-killing fungus continues to spread west through the US 26 Aug 2013 | 05:50 pm
The deadly fungus that causes white-nose syndrome in bats is continuing to spread west across North America. Wildlife officials confirmed on July 29, 2013 that the invasive fungus has spread to at lea...
Lunar fogbow over Finland 26 Aug 2013 | 03:10 pm
Photo credit: Thomas Kast. You can see more of his photos here. Thomas Kast had this to say about this beautiful image: Last night – August 24/25, 2013 – I was hoping for a great aurora show due to ...
Neptune comes closest to Earth for year on August 26 26 Aug 2013 | 12:01 pm
Neptune comes closest to Earth today – on August 26, 2013 – and reaches opposition a little more one-half day thereafter. Neptune is said to be at opposition – opposite the sun in Earth’s sky – whenev...
