The top speed was 8 mph. The first rover was used during the Apollo 15 mission, when David Scott andJames Irwin drove it on the moon on July 31, 1971.

第一部探险车在阿波罗15飞船航天飞行期间的7月31日，由大卫·斯科特和詹姆士·欧文在月球上驾驶。

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David Scott,Alfred Worden and James Irwin were the crew for Apollo Fifteen.

VOA: special.2009.07.29

At Wednesday's hearing, Tripp attorneys Joseph Murtha and David Irwin managed to get the women to concede that their testimony about what Tripp said may have been influenced by news media accounts of the Starr investigation and the impeachment proceedings before Congress.

CNN: Lewinsky to testify in Tripp wiretap case

Among the speakers were US actors Hayek and Matthew McConaughey, award-winning scientist and environmentalist Dr David Suzuki, Canadian astronaut Julie Payette and Bindi Irwin, the young daughter of the late Australian wildlife expert, Steve Irwin.

BBC: 'Space clown' hosts global show