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Nature 420, 38-39 (7 November 2002) | doi:10.1038/420038a

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Astronomy: Close encounters of the tidal kind

Tommy Wiklind

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Between the Magellanic Clouds, in a region swept with tides of gas, stars are forming. The detection of carbon monoxide shows gas is condensing, and further observations may reveal the ultimate fate of the clouds.

As giant galaxies merge, small galaxies may be born in the gaseous debris thrown out from the collision. This kind of 'tidal debris' is also seen in our own neighbourhood, as the Milky Way and two nearby galaxies, the Magellanic Clouds, act out a gravitational tug-of-war with each other.