I wrote Mr. Tyson on 2/25/2020 and received a pre-signed 5x7 photograph, along with a letter, a pamphlet on the Hayden Planetarium, and a sticker. Overall a wonderful success, and one of my most sought after autographs.
Address used:
Neil deGrasse Tyson
Hayden Planetarium & Department of Astrophysics
Central Park West at 79th. Street
New York, NY 10024