"The arc of the Milky Way seen from a truly dark location is part of our planet's natural heritage," said Connie Walker, and astronomer from the U.S. National Optical Astronomy Observatory in Tucson, Arizona. Yet "more than one fifth of the world population, two thirds of the U.S. population and one half of the European Union population have already lost naked eye visibility of the Milky Way." In these areas, people are effectively living in perennial moonlight. They rarely realize it because they still experience the sky to be brighter under a full moon than under new moon conditions. "Reducing the number of lights on at night could help conserve energy, protect wildlife and benefit human health," astronomer Malcolm Smith of the Cerro Tololo Inter-American Observatory in Chile. One study found an increased risk of breast cancer for women living in areas with the most light pollution (abstract). Some communities are embracing their dark skies, such as the New Zealand community of Tekapo, possibly home to first "Starlight Reserve," waiting on UNESCO's official approval. Not sure where to look in the vast night sky? Follow some guidelines, or check the view in Chile, Queensland, Australia, or Texas.
posted by filthy light thief on Jun 13, 2009 - 74 comments

A time lapse video of the night sky as it passes over the 2009 Texas Star Party in Fort Davis, Texas. The galactic core of the Milky Way is brightly displayed.
posted by Effigy2000 on May 19, 2009 - 67 comments

Astronomers searching for amino acids in space have discovered something unexpected -- the center of our galaxy tastes like raspberries and smells like rum. [more inside]
posted by EmpressCallipygos on Apr 22, 2009 - 41 comments

The Milky Way Transit Authority. [Via]
posted by homunculus on Jan 8, 2009 - 18 comments

Time to turn off the lights. "Cities needlessly shine billions of dollars directly into the sky each year and, as a result, a fifth of the world's population cannot see the Milky Way. Malcolm Smith explains why a dark sky has much to offer everyone." [Via]
posted by homunculus on Jan 1, 2009 - 47 comments

A sixteen year long astronomical study, led by Dr. Reinhard Genzel of the Max-Planck-Institute for Extraterrestrial Physics, has provided what is considered to be the best empirical evidence yet of the existence of supermassive black holes, specifically one a relatively cozy 27,000 light years away.... "The stellar orbits [QT] in the Galactic Centre [QT] show that the central mass concentration of four million solar masses must be a black hole, beyond any reasonable doubt." [more inside]
posted by Kronos_to_Earth on Dec 13, 2008 - 43 comments

The AKARI mission has produced the first infra-red sky map in over 20 years.
posted by nthdegx on Jul 19, 2007 - 20 comments

Hubble harvests 100 new planets during a 7-day sweep of the bulge of the Milky Way.. If confirmed it would almost double the number of known planets to about 230. "I think this work has the potential to be the most significant advance in discovering extra-solar planetary systems since the first planets were discovered in the mid-1990s."
posted by stbalbach on Jul 1, 2004 - 17 comments

Nearer, My Galaxy, to Thee. The only thing I find more surprising than the discovery of a galactic collision-in-progress is the fact that a similar nearby galaxy had already been found last decade. I need to get up to date and throw out all my astronomy books which still cite the Magellanic Clouds as being our closest neighbors.
posted by brownpau on Nov 4, 2003 - 9 comments

A computer aided simulation builds a spiral galaxy from its beginning. In all, 390,000 particles were placed in an arrangement similar to a newborn galaxy. The end result after three months is an event that is believed to take billions of years to occur. (animation)
posted by samsara on Aug 7, 2002 - 7 comments

Feeling small or feeling big? 39 orders of magnitude that take you from the Milky Way to the proton in an oak leaf.
posted by Chief Typist on Jun 20, 2002 - 9 comments

Power of Ten View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons.
posted by Tarrama on Jan 30, 2002 - 19 comments