So many submissions, so little comment. Does no one have anything to say?<p><a href="https://news.ycombinator.com/item?id=10105003" rel="nofollow">https://news.ycombinator.com/item?id=10105003</a><p><a href="https://news.ycombinator.com/item?id=10095595" rel="nofollow">https://news.ycombinator.com/item?id=10095595</a><p><a href="https://news.ycombinator.com/item?id=10093968" rel="nofollow">https://news.ycombinator.com/item?id=10093968</a>
>near supersonic speeds<p>Just to nitpick I think they refer to supersonic speeds in standard pressure. The speed of sound in very low pressure ("vacuum") is much lower and they probably far above that.