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Education for Life: self-empowerment; Creative, productive freedom; organic food, farming > biodiversity, ecology


astronomy, galaxies, dark matter, space, time

Astronomy research: galaxies, space, radio telescopes, exoplanets, spacetime, dark matter / energy


Related themes include physics, education and solar energy (photovoltaics).



recent astronomy, galaxies, dark matter, space, time posts

partial eclipse of the moon

A partial eclipse of the moon, last year, in Bude, Cornwall Nature photography meets physics, in Cornwall.

tags:
astronomy, Bude, Cornwall, photos, physics,
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In Search of the Edge of Time - John Gribbin

Gribbin sets out to explain how time travel is theoretically possible and looks at the various different ways which might allow it. He pays particular attention to the most likely time-machine: that provided by the concept of the "wormhole".  Like a tunnel through space and time, a wormhole could connect different regions of the Universe which occupy both different spaces and different times.

tags:
astronomy, books, John Gribbin, physics, relativity, space, time,
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cosmological standard model news

It's about time there was an upset in theoretical physics. Sadly, the cosmological standard model seems to have become dogma in much the same way as other theories over the millenia.  Several news stories, a positive flurry in fact, have emerged over the last few month:   Dark matter theory challenged by gassy galaxies result 25 February 2011 Dark matter may solve 'radio filaments' mystery

tags:
astronomy, cosmology, dark matter, galaxies, gardens, photos, physics,
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What Dark Matter?

quote: Theoretical physicists have discovered that we live in a universe where dark energy pushes things apart while dark matter tries to pull things together. from today's post  - http://bit.ly/1hfzcJq Have they? Mach's Principle states that only relative motion exists. So if the universe revolved around us (relative to what?) we would feel centrifugal force exactly as though we had revolved

tags:
astronomy, dark matter, photos, physics, relativity,
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Unusual black hole at centre of atypical galaxy

Unusual black hole at centre of galaxy. Astronomers using the Magellan II telescope in Chile and NASA’s Chandra X-ray Observatory have discovered the smallest supermassive black hole yet found at the centre of a dwarf galaxy. It is unusual  in two ways: 1. It's a very tiny black hole, given its position at the centre of a galaxy (such black holes usually called 'Supermassive Black Holes')

tags:
astronomy, black hole, galaxies, physics, space, telescopes, waveicles,
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aurora discovered in nearby constellation

Northern Lights times 1 million! Astronomers have reported seeing an aurora on a 'failed' star (a brown dwarf) 18 light years distant from Earth. This is in a distant (18 light years) constellation, within the Milky Way (diameter estimated at 100,000 light years). http://bit.ly/1UetJ3n Artists Impression To put the distances in perspective: Milky Way galaxy (our home!) diameter 100,000

tags:
astronomy, galaxies, miscellany 1, physics, popular science, space,
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