Since the beginning of celebrating Hanukkah on December 22, social networks have been flooded with congratulations and holiday-related photos, including numerous messages from international leaders and celebrities from around the world.

However, a unique congratulation on Hanukkah came from outside the Earth. On the first night of Hanukkah, NASA astronaut Jessica Meir tweeted a photo of her feet in some non-traditional but festive blue, neon green, and purple socks, completed with menorahs and representations of the Star of David.

"Happy Hanukkah to all those who celebrate it on Earth! #HappyHanukkah," Meir's tweet read.

With thousands of likes and retweets, people around the world appreciated Meir's holiday greeting, with many responding with "Chag sameach," which translates to "Happy holidays" from Hebrew.

Lighting candles every night is the main tradition of Hanukkah. But lighting a fire in outer space can be especially difficult, given that a flame can react to the absence of gravity in an uncontrolled manner. Perhaps, for this reason, Meir chose a photograph of her legs wearing these remarkable socks to be the message. She followed the tradition of putting the menorah close to the window. Outside the astronaut’s window, one could see our land thousands of kilometers away.

Meir arrived at the space station in late September and has already had an extremely eventful time working on the station. In October, she took part in her first spacewalk, which happened to be historic, as it was the first all woman-spacewalk.

Boeing's Starliner spacecraft was scheduled to dock with the space station on Saturday (December 21) and deliver cargo that included holiday presents. However, the craft had to make early landing back on Earth. But Meir thought ahead and brought holiday socks along with her to space.

It's never too early to get ready for the holidays.