But the desire of businesses to sample Texas trail dust pre-dates Rick Perry.
WSJ: Henninger: The Perry Paradox
We immediately launched down the jungle trail at top speed, leaving a stream of dust and mud behind us.
BBC: Tracking Nepal��s endangered rhino
It already has a 64, 000km-long tail of dust and gas that will become visible to the naked eye later in the year - a trail scientists will study closely.
BBC: Comet Ison caught on film by Deep Impact craft
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