The age of the universe is about 13.75 billion years. The diameter of the observable universe is estimated at about 28 billion parsecs (93 billion light-years). As a reminder, a light-year is a unit of length equal to just under 10 trillion kilometres (or about 6 trillion miles).
The Observable Universe consists of the galaxies and other matter that we can, in principle, observe from Earth in the present day—because light (or other signals) from those objects has had time to reach the Earth since the beginning of the cosmological expansion.
NASA Releases New Amazing Images Of Mars – Surreal Montage
Soaring Over Titan: Extraterrestrial Land of Lakes
Titan Touchdown
Voyager Images from the Odysseys (NASA Space Photos)
Amazing Aliens Planets
A Colorful ‘Landing’ on Pluto
Jupiter: The Largest Planet
A 3D Atlas Of The Universe – Carter Emmart
Journey to Mars / Exploration Zones
We are not alone – Messages from the Universe
Amazing Alien Planets That Could Host Life
Great things are achieved through continued persistence and dedication
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