ALT A magnified view of a nearly translucent Calanus finmarchicus zooplankton, showing its segmented body, antennae, and internal structures. Credit: Cameron Thompson

ALT A North Atlantic right whale, partially submerged, swims in dark blue ocean water, creating white foam around its head and back. Credit: New England Aquarium, taken under NMFS permit # 25739

ALT Image Description: An image of Iceland. White clouds cover most of the image. In the middle a white Iceland appears. Around it is a blue ocean with green swirls of phytoplankton.

ALT Graphic of a farmer holding a tablet with data on it while standing by a field. The field has rows of yellow wheat and a tractor. Another field on the right of the image has crop circles. Above, satellites orbit Earth, collecting data about the ground below.

ALT “Earth Day” is spelled out by satellite views of Earth features in the middle of the image. The “letters” are colorful, represented by views of water and land in shades of blue, brown, green, and even red. Underneath are the words “Earth Day” and “Celebrate Earth from space with NASA.” The “day” is written in a vibrant blue, while the rest of the words are white. The background of the poster is black. “National Aeronautics and Space Administration” is written at top left, “nasa.gov” is written at bottom left, and the NASA “meatball” logo appears at top right in black and white. Credit: NASA/USGS

ALT This image shows a navy blue circle with a logo in the center that reads “NASA’s Curious Universe” in white letters with stars in the upper left and bottom right. Surrounding the circle, there are panels of shades of alternative reds and blues with red icons floating. The icons include a plane, planet Saturn, an asteroid with smaller rocks surrounding, a satellite, a question mark, a telescope, molecules, and part of a visualization of a black hole.