More excellent #JWST news this evening: its Ka-band antenna is transmitting to the Deep Space Network 📡

7Mbps doesn’t sound like much … until you remember that they’re almost 1.5 million kilometres apart 😳

This is crucial to get down all the lovely mission science data 👍 https://t.co/nRQdy64OZi pic.twitter.com/GqGIG5TxGW

— Mark McCaughrean (@markmccaughrean) January 19, 2022