Phil Plait on Abell 2744:

… by taking the data from a fleet of telescopes on and above the Earth, telescopes that see across the electromagnetic spectrum well beyond what the eye can perceive, we can piece together a history of an object with hundreds of trillions of stars spanning quintillions of kilometers of space and hundreds of millions of years in time.

And that, my friends, is what scientists do. And that’s pretty cool.