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The world's most populous nations will gaze skywards on Wednesday as the longest total solar eclipse of the 21st Century lays a carpet of darkness across India and China, from Mumbai to Shanghai.

A distant "sun" residing in the constellation Aquila has become the smallest star known to host a planet.

Scientists in California say they're trying to replicate the power of the sun by firing laser beams at a tiny pellet of hydrogen. Physicists at the National Ignition Facility in Livermore say the nuclear fusion experiments may offer the world a clean source of energy, The Times of London reported Sunday. The hydrogen pellet will be hit with 192...