Lowell Observatory will reopen to general admission Monday. Guests will be able to visit, day or night, during regular business hours with new guest protocols. The return to general admission will take place in two parts and is the third and final phase of the reopening plan. In Phase 3A, guests 12 years and older will need to show proof of vaccination or a negative COVID-19 lab test within 72 hours of visiting the observatory. Kids two-to-eleven years old will need to wear masks while indoors. Observatory director Dr. Jeff Hall says “we look forward to Phase 3B, when we are once again fully open. As soon as the Delta numbers subside to the endemic level that all of us will live with for the rest of our lives, we will reopen fully without restrictions.” The reopening concludes a 20 month period during which the observatory has been closed, or offered limited programming due to COVID-19. The observatory initially closed its doors to the public, March 13th of last year.