📄 61558
字号:
Path: cantaloupe.srv.cs.cmu.edu!das-news.harvard.edu!noc.near.net!uunet!digex.com!digex.net!not-for-mailFrom: prb@access.digex.net (Pat)Newsgroups: sci.spaceSubject: Re: Combo Propulsion System!?Date: 2 May 1993 15:08:02 -0400Organization: Express Access Online Communications USALines: 10Message-ID: <1s166i$803@access.digex.net>References: <1993May1.043916.1@aurora.alaska.edu> <C6DEMz.Bo9@zoo.toronto.edu>NNTP-Posting-Host: access.digex.netHow difficult would it be to do a solar sail mission to say mercury?Not much has been there and there is a 23?KM/s delta v to eat off.could a solar sail, handle say adiscovery bus, and drop it intomercury orbit, good enough for rockets to put it into someform of polar orbit?pat
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -