New Picture from Curiosity on Mars.

New Picture from Curiosity on Mars.

Each dot you see here, is a galaxy; and each galaxy has billions of stars. Do you really think we’re alone?

Each dot you see here, is a galaxy; and each galaxy has billions of stars.

Do you really think we’re alone?

Venus’s 2012 transit across the sun

Venus’s 2012 transit across the sun

In about four billions years from now, the Andromeda galaxy will collide with ours, The milky way, and it will take a few billions years for them to make one.

In about four billions years from now, the Andromeda galaxy will collide with ours, The milky way, and it will take a few billions years for them to make one.