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Astronomers have captured light echoes of the historic supernova of 1572, which overturned Aristotle's theory of the universe.
Despite the environmental now being a mainstream topic, green campaign groups are still as relevant as ever.
Two studies show the first direct images of planets outside our Solar System, including a three-planet system.
Astronomers shed light on how stars can form around a massive black hole, defying conventional wisdom.
Two old stars appear to be generating planets long after the normal period, astronomers say.
Sea erosion brings an urgency to archaeologists' work, as bodies emerge on the shoreline of northern Alaska.
BBC Middle East correspondent Tim Franks continues his Jerusalem diary.
Astronomers using the Spitzer telescope detect a torrent of water-ice pelting an embryonic star system.
A large telescope funded and led by the UK nears completion on a mountain-top in Chile's Atacama desert.
Collisions between comets may be kicking up copious amounts of dust observed around a dead star.
Astronomers find evidence of a supermassive black hole at the heart of a tiny galaxy in the Virgo Cluster
The London Stock Exchange, which has fended off a series of possible suitors, reports strong half-year profits.
Computer modelling sheds new light on why Mercury is a very dense planet for its small size.
Nasa says samples from the Stardust mission show cometary material must have been made in hot as well as cold environments.
The ex-prime minister urges Tory right-wingers to back David Cameron, saying he is the party's best chance of winning the next election.
UK-based Standard Chartered announces it is spending $3.3bn to buy one of South Korea's main retail banks.
The American author Bill Bryson wins the prestigious Aventis Prize for popular science books for A Short History Of Nearly Everything.
Nasa's Spitzer telescope finds evidence for a planet around a distant star that may be less than one million years old.
Observations made by satellites have detected a wind of particles blowing away from black holes in the centres of galaxies.
If the ice hidden just below the Martian surface were to melt, it could create a planet-wide sea 13 cm deep, scientists say.
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