Since its creation in late April 1999, NASA Earth Observatory has published more than 15,000 image-driven stories about our planet: natural- and false-color satellite images, data maps, and aerial or space-based photos. In honor of our 20th anniversary, we offer a selection of some of the most beautiful, newsworthy, interesting, and scientifically important images from the past 20 years — one for each day of the calendar year. Check this page each day for a new blast from EO’s past.
An image from the remote South Sandwich Islands shows how volcanic emissions can create clouds, while the islands themselves deform those clouds.
January • February • March • April • May • June • July • August • September • October • November • December