Could the universe have a dark side, complete with its own force, a zoo of particles and even a shadow version of the Milky Way?
"Could there be a mirror world where interesting things are going on?
The way stars and galaxies move shows there is more mass present than we can see. To account for this, 80 per cent of the universe's matter must be dark. The trouble is the stuff stubbornly refuses to interact with ordinary matter, except through gravity, so has not been conclusively detected.
With an errant space rock heading this way, just how good are our asteroid defences – and how do we avert the cataclysm?
IT COULD easily be the plot for a Hollywood disaster movie. Last February, a young dental surgeon called Jaime Nomen was sailing along the Mediterranean coast of Spain, checking images on his laptop from an observatory 600 kilometres away. Suddenly he spotted a speck of light speeding through the constellation Boötes. Nomen knew exactly what it was.
He alerted the Minor Planet Center in Cambridge, Massachusetts, which collects information about asteroids and comets. Telescopes around the world swung into action, checking the new asteroid's orbit. The result was sensational: asteroid 2012 DA14 was on near-collision course with the Earth. (New Scientist; registration required.)
Shockingly, Earth – which used to be smack-bang in the middle of our sun's habitable zone – is now a scant million kilometres away from the warm edge, so almost too hot for liquid water. Of course, we know Earth is robustly life-friendly – the mismatch is probably because neither definition accounts for clouds, which reflect sunlight away from Earth.
As Earth shows, the Goldilocks zone is no ultimate judge of habitability, something exoplanet researchers have known for years. As well as clouds, volcanic activity or the location of other moons or planets in the solar system, may be important for life to develop on planets like Earth.
I just remembered a song n Mάνα μou used to listen to - Πιο Ψηλά Κι' Aπ' T' Άστρα
A missile carrying the bomb would have been launched from an undisclosed location on Earth and travel to the moon, where it would detonate on impact.
The project would have been carried out in 1959, but was reportedly abandoned by military officials due to fears that it would endanger people on Earth should the mission fail.
Found it on the beach, brought it home to take a photo and will put it back now. Might have done an Internet search, but I can’t really read it.
Updated January 06, 2012 01:09:56
A mineral brought back to Earth by the first men on the Moon and long thought to be unique to the lunar surface has been found in Australian rocks more than 1 billion years old.
Named after Apollo 11's 1969 landing site at the Sea of Tranquility, tranquillityite was one of three minerals first discovered in rocks from the Moon and the only one not to be found, in subsequent years, on Earth.
Australian scientist Birger Rasmussen said tranquillityite had "long been considered as the Moon's own mineral" until geologists discovered it, by chance, in rock from resources-rich Western Australia.
THE green flares of the aurora australis seen on Saturday night were the brightest they have been in seven years, says Astronomical Society of Tasmania spokesman Bob Coghlan.
Mr Coghlan said the natural light show was caused by photon oxygen emissions in the Earth's upper atmosphere reacting against strong solar winds, causing an eerie green glow.
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Cannons found in Panama believed to be from Sir Henry Morgan shipwrecks
Archaeologists have recovered six cannons from the ships of Welsh privateer Sir Henry Morgan, the first artifacts found in Panama to be linked to the man who remains a legend there...................
At the edge of the Lajas Reef, the team found what appeared to be a field of six cannons, all covered with layers of sedimentary rock that had built up over centuries...............................
At least two more guns are buried in the sand, along with an anchor, ceramics, bottles and other artifacts