Welcome / Help at Any Time

Welcome to this guide for Expos 20/Journey to Mars.  Take a playful attitude to research.  Make hypotheses.  Try them out.  See what works. Rinse. Repeat. Email George with questions or to set up an appointment to talk by Zoom.  

If you need  help fast, try the Ask a Librarian page.  There you will find a form to type email questions at any time of day. We aim to respond within 24 hours. Or try the Chat with a Librarian rectangle that you will see in the upper right corner of that page and the main HOLLIS page.  Chat is available only during certain hours:

Chat Schedule, Boston Time:


9:00 a.m. to 9:00 p.m.


9:00 a.m. to 7:00 p.m.


9:00 a.m. to 5:00 p.m.


12:00 p.m. to 9:00 p.m.