The US space agency NASA entered the New Year with a historical discovery, publishing a photograph of the farthest object ever visited in the Solar System.
The New Horizons probe sent a photo of the Ultima Thule celestial body. Controllers at the Applied Science Laboratory at Johns Hopkins University celebrated the moment when the signal from the spacecraft was filmed on the ground.
"There are two things in Ultima Thule, but important for science. First, because it is so far from the sun, the sun's rays barely penetrate, the temperatures are at absolute zero. As a result, everything is frozen, so that the celestial body is preserved in the original state, "explains Alan Stern of NASA.
It is a 32-kilometer-long object, and the photo is made of about 800,000 kilometers.