Holiday decap of a tiny chip that plays Christmas songs. The UM66T melody chip looks like a transistor but contains a 64-note ROM and drives a speaker directly. It was designed for greeting cards and toys. Let's see what's inside this chip.🧵 pic.twitter.com/eTvbG1kt1n

— Ken Shirriff (@kenshirriff) December 18, 2021

NASA's Parker Solar Probe plunged deep into the Sun's corona & passed directly through streamers of solar plasma. The view out the window was...staggering. https://t.co/LLy8fB2dmZ pic.twitter.com/4fWkHIgmlA

— Corey S. Powell (@coreyspowell) December 15, 2021

My general mood at this stage and I know I’m not alone. pic.twitter.com/WT4JPiNUcn

— Erin V. (@erininnashville) December 17, 2021

Fuck around and find out. 🇺🇸 https://t.co/buuFM7GBtm

— Ruben Gallego (@RubenGallego) December 15, 2021

UPDATE: @NASAWebb is now targeted to launch no earlier than Dec. 24 to allow teams to work a communications issue between the observatory and its launch vehicle system: https://t.co/ZdpvYvdXxO pic.twitter.com/wN1wb7nuGn

— NASA (@NASA) December 14, 2021