Japan lost a 5-ton navigation satellite when it fell off a rocket during launch
via arstechnica.com
Short excerpt below. Read at the original source.
If you’re in the space business long enough, you learn there are numerous ways a rocket can fail. I’ve written my share of stories about misbehaving rockets and the extensive investigations that usually—but not always—reveal what went wrong. But I never expected to write this story. Maybe this was a failure of my own imagination. […]