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Earth-size planets are the target.

While space mining is still a decade or so off, next year the industry is ramping up their efforts.

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

http://go.nasa.gov/2Qn6Pi6&h=AT3np_oMoCPYbhx9QJX-8XPwlEEXDwA…yHFVXA4jcw

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: