It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
Jupiter is bigger than all the other planets combined.
254
The light hitting the earth right now is 30 thousand years old.
163
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Sound doesn't travel in space.
255