精选75MarketWatch（RSS）股市
中国民营火箭公司实现火箭一级回收，追赶SpaceX
The space race is on as China takes a big step toward rivaling SpaceX
A Chinese company demonstrated controlled recovery of a rocket’s bottom portion, which is critical in helping to drive down launch costs.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力