GGW! Normally that accronym would be reserved for late-night commercials about incredibly inexpensive DVD-sets with future women that will sue Joe Francis.
But not this time.
This time GGW refers to NASA’s celebration of the Hubble Telescope being launched 18 years ago! And so they’ve put together a site of awe-inspiring images that Hubble has captured of galaxies that are “merging”. They wanted to put up photographs of galaxies that were “in love” since they are “in love” with Hubble. Truly touching, isn’t it?
“As this astonishing Hubble atlas of interacting galaxies illustrates, galaxy collisions produce a remarkable variety of intricate structures.”
Source: Merging Galaxies.