OPN Image Galleries



Image of the Week



After Image



Photo Contests


Submit an image to OPN.

Collision ahead

Optics and Photonics Image of the Week RSSRSS
Collision ahead

Collision ahead

Mark your calendar: Analysis of data from the Hubble Space Telescope shows that, about four billion years from now, our Milky Way galaxy is destined for a gigantic collision with the neighboring Andromeda galaxy, as shown in this illustration. —NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger

> Download hi-res image