Earth-size planets are the target.

NASA directed Marvel to listen for a signal from Stark saying “Avengers, we have a problem.” #INQEntertainment
MANILA, Philippines — Tony Stark being stranded in space without food, water or air in the “Avengers: Endgame” trailer stirred the emotions of many Marvel fans.
The ISDApp was designed to communicate useful information to fishermen (such as real-time weather updates, sunrise and sunset times, wind speed, and cloud coverage) without the need for an internet connection. #SpaceApps #SpaceAppsPH
For the first time, a Filipino-made app was selected to join the global NASA Space Apps Challenge. Current latest trending Philippine headlines on science, technology breakthroughs, hardware devices, geeks, gaming, web/desktop applications, mobile apps, social media buzz and gadget reviews.
Do you like space? 🌌 A science team is presenting about their expedition to document a supercolony of penguins in Antarctica — which they found by using NASA Earth satellite imagery! 🛰️ Learn all about how to study penguins from space! https://go.nasa.gov/2rsoF4y
First #selfie! I’m feeling healthy, energized and whole. This is me on #Mars. http://go.nasa.gov/2Qn6Pi6&h=AT3Q6ffKt6_9qmkSPTO3bdwJ0GlGXlT…Qbo516oeGQ
There’s a cool doubleheader in outer space this week: In addition to the fly-by of comet 46P/Wirtanen over the weekend, the often spectacular Geminid meteor shower will also make its annual appearance Thursday.
With hundreds of meteors streaking across the night sky, the Geminids are often the best meteor shower of the year. “The reliable Geminid shower counts as one of the year’s best, peppering the nighttime sky with 50–120 meteors per hour at its peak,” noted EarthSky.org.
More good news: The crescent moon will set around 10:30 p.m., leaving the rest of the night moon-free, Astronomy.com said. Observers under a clear dark sky can expect to see an average of two per minute.
50 years ago this Christmas, we orbited the Moon for the first time. 1 out of every 4 people on Earth watched the crew’s broadcast on Christmas Eve. This is the story of Apollo 8:
Medical research has taken a leap into the future as Russian scientists have managed to grow a mouse’s thyroid in zero gravity using a 3D bioprinter on the International Space Station (ISS). And human organs may be next in line.
The breakthrough device dubbed Organaut was delivered to the ISS by a Soyuz MS-11 spacecraft on December 3 by Expedition 58.
In what is no longer a plot of a sci-fi movie, the innovative device created a mouse’s thyroid in zero gravity. And the result was a success. Invitro, whose subsidiary 3D Bioprinting Solutions built the printer, told Ria Novosti: “We received photos from space. The camera clearly shows a living construction of a mouse’s thyroid being assembled.”