The Cytherians are extremely intelligent beings who explore the galaxy from their home planet by launching probes which contain instructions on how to reach their homeworld at the centre of the galaxy.
	Sensor scans used by shuttlecraft include passive high-resolution, neutron densitomiter and positron emission.
	The Argus Array is an unmanned subspace telescope on the very edge of Federation space.
	The Enterprise was going to take the probe for analysis at science station 402 in the Kohlan system.
	The Enterprise has an arboretum. Barclay claims that the zalnias should be in bloom.

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