Offer them publicity. If you're a journalist in the middle of preparing a piece on their field of study (while carefully making sure to get the facts right, unlike many science reporters), some of them will jump to the chance of having their replies quoted.
Previous open thread
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.