Any two particles in the universe attract each other through the gravitational interaction.


The Life of the Cosmos (ed. Oxford University Press, USA, 1999) - ISBN: 9780195126648


Any two particles in the universe attract each other through the gravitational interaction.

Any two particles in the universe attract each other through the gravitational interaction.

Any two particles in the universe attract each other through the gravitational interaction.

Any two particles in the universe attract each other through the gravitational interaction.