SpaceX's Starlink campaign retains the company's wide lead in satellites launched per quarter, according to @BryceSpaceTech.

Q4 launches:

10—SpaceX🇺🇸
9—CASC🇨🇳
4—Roscosmos🇷🇺, Arianespace🇫🇷
3—Rocket Lab🇺🇸
2—ULA🇺🇸, ISRO🇮🇳
1—Northrop Grumman🇺🇸, Astra🇺🇸, MHI🇯🇵, Galactic Energy🇨🇳 pic.twitter.com/InKrBFY5tK

— Michael Sheetz (@thesheetztweetz) January 22, 2021

When @NASAPersevere lands on Mars, it’s bringing along Ingenuity. This experiment will attempt the 1st controlled flight on another planet. If successful, the helicopter could lead to more advanced tech. Here are six things to know: https://t.co/4hnjDZR7BP #CountdownToMars pic.twitter.com/SlFoN7aTqF

— NASA JPL (@NASAJPL) January 21, 2021

“Try not to become a man of success, but rather try to become a man of value."

-Albert Einstein- pic.twitter.com/BX6rhmNS8d

— Insta Science (@insta_science) January 22, 2021

8 times now the same rocket has been flown and landed and reused. Incredible engineering by @SpaceX, turning science fiction into reality 🤯 @elonmusk pic.twitter.com/NL1ho97Ln9

— Pranay Pathole (@PPathole) January 20, 2021

Happy birthday @TheRealBuzz! 🎂

Astronaut Buzz Aldrin, born on this day in 1930, was pilot of Gemini XII, and as lunar module pilot on Apollo 11, became the second person to ever set foot on the Moon. pic.twitter.com/id3OpR3Onz

— National Air and Space Museum (@airandspace) January 20, 2021

BREAKING: SpaceX now has over 1,000 Starlink satellites in orbit.

— Latest in space (@latestinspace) January 20, 2021

Hitching a ride on @NASAPersevere, the Mars Helicopter, Ingenuity, is a technology demonstration to test powered flight on another world for the first time. Learn more at https://t.co/mK9mCsVWpa #CountdownToMars pic.twitter.com/fyIPgvNlUR

— NASA Aeronautics (@NASAaero) January 19, 2021

Virgin Orbit achieved its first satellite launch success Sunday.

“We couldn’t have asked for a better flight,” says Dan Hart, Virgin Orbit CEO. "We hit all of our events right on the money. The performance of the rocket was exactly where we wanted it."https://t.co/1OVyW2obqb pic.twitter.com/acXI8mP5fl

— Spaceflight Now (@SpaceflightNow) January 18, 2021