How Big is the Universe

how big is an atom

How Big is an Atom?

The size of an atom is almost impossible to measure because the Atom contains 20 different particles. Electrons, for instance, …
how big is a particle

How Big is a Particle?

Particles of all different shapes and sizes are less than 0.5 nanometers (µm)
  • Polymeric Particles 0.5µm
  • Metal Particles 0.5µm

how big is the brightest star

How Big is the Brightest Star

Sirius is the brightest star in the winter night sky of the ‘Northern Hemisphere’. Sirius is easily confused with Jupiter as …
how big is the universe

How big is the Universe

As a keen astronomer, I am still amazed at how vast and apparently endless the Universe appears to be. NASA …