🗓️ Mark your calendars for one of the biggest space events of the year: the launch of @NASAWebb this October.

As we start our countdown, here are 2️⃣1️⃣ ways to learn about Webb in 2021: https://t.co/pCci4ZhH0b pic.twitter.com/Jck5UFKh64

— NASA Goddard (@NASAGoddard) January 12, 2021