Coldness and loneliness of spece
D. Anton

Absolute zero, also called zero Kelvin, occurs when the particles that constitute matter have no motion. Measured in degrees Celsius 0 Kelvin takes place at -273.15 (degrees Celsius below zero).
The average temperature at the Earth's surface is 287 degrees Kelvin or 14 degrees Celsius above zero. The average temperature at the surface of Mars is 213 degrees Kelvin or minus 60 degrees Celsius. Pluto, which is much further away, shows very low temperatures of 44 degrees Kelvin or 229 degrees Celsius below zero.
The Horizons probe that was sent to Pluto had to cross enormous distances. In them, without internal heating systems, the temperature of the probe would have dropped to 270 degrees centigrade below zero or about 3 degrees above the absolute 0.
So the interplanetary space is cold, VERY COLD.
But in addition to being cold, it is fundamentally empty space, VERY EMPTY. A spacecraft, such as New Horizons, destined for the planet Pluto (about 6,000 million km away from Earth) traveled 9 years (yes, more than 3,300 days) at a speed of 30,000 to 15,000 kilometers per hour, without finding any particles of visible dimensions . Only the loneliness of space. THE GREAT LONELINESS OF SPACE.
It only came to Pluto because it was directed in that direction. In any other direction I would have followed long into interstellar space.
But the New Horizons story did not end there.
From Pluto, the spacecraft was redirected to a small asteroid a hundred kilometers of diameter, distant about 2,000 million kilometers from Pluto, which will arrive in about three more years, continuing its march through the empty space.
Cold and empty. The greatest of the solitudes. Only the faint light of distant stars.
Incomprehensible to us, little human beings, on this hospitable planet, accompanied only by ourselves.

Cold and lonely. Such is the universe.