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Planet-forming lifeline discovered in a binary star system: ALMA examines ezekiel-like 'wheel in a wheel' of dust and gas（图）
dust gas
2014/12/1
Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected a streamer of dust and gas flowing from a massive outer disk toward the inner reaches of a binary star system. Th...
Who discovered the expanding universe? Was it Hubble, or Lemaitre, or was it just the end result of a long series of investigations? In this article we summarise the main steps and contributions that ...