Mikko Takkunen

At the Mars Desert Research Station outside Hanksville, Utah, a group of scientists are taking advantage of Mars-like terrain to investigate the possibility of human exploration of the red planet. Crews of scientists, students …

The Hubble Telescope has been active for nearly a quarter of a century. Here are some of the telescope’s most striking images—a tiny fraction of the things it’s seen and the images it’s sent home in its long and productive life.