After a Two-Year Trek, NASA’s Mars Rover Reaches Its Mountain Lab

This story had much attention here a few days ago: https://news.ycombinator.com/item?id=8307790.

You can find whether a story has already appeared by using the Search box at the bottom of most HN pages. Reposts are ok after about a year. If a story hasn't had much attention on HN yet, it's also ok to repost.