Related Clues:
- Deep-space vehicle
- Do some digging
- Closely enquire into
- Start, as a meal
- Congressional investigation
- Quietly put on attire for exploration
- Look into closely
- Galileo, for Jupiter, e.g
- Deep dig of a sort
- Familiar issue beginning to encumber investigation
- Voyager 1, for one
- Ask searching questions
- Examine soft gown
- Supporting book, European, in thorough enquiry
- Expert attending live investigation