India launches cut-price mission to land on Moon

India launched a rocket on Friday carrying an unmanned spacecraft to land on the Moon, its second attempt to do so as its cut-price space program seeks to reach new heights.

Astronomers puzzled by 'planet that shouldn't exist'

The search for planets outside our solar system—exoplanets—is one of the most rapidly growing fields in astronomy. Over the past few decades, more than 5,000 exoplanets have been detected and astronomers now estimate ...

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