From: utzoo!decvax!duke!CSvax:Pucc-H:Physics:crl@pur-ee.UUCP Newsgroups: net.space Title: Re: Pioneer 10 leaves solar system - (nf) Article-I.D.: pur-phy.751 Posted: Mon May 2 13:05:12 1983 Received: Tue May 17 07:15:51 1983 Relay-Version:version B 2.10 delta 4/26/83; site burl.UUCP Path:burl!spanky!ihnp4!ixn5c!inuxc!pur-ee!CSvax:Pucc-H:Physics:crl Message-ID:<751@pur-phy.UUCP> Date:Mon, 2-May-83 13:05:12 EDT #R:utzoo:-292900:pur-phy:11400001:000:343 pur-phy!crl May 2 09:39:00 1983 I disagree with the statement that a craft is interstellar when it reaches the sun's escape velocity. It could always brake to go into some planetary orbit couldn't it? Analogously, would we consider the APOLLO missions interplanetary just because they exceeded earth's escape velocity? Charles LaBrec pur-ee!Physics:crl purdue!Physics:crl