
ALT An artist's concept of the Voyager spacecraft, with its long antenna pointing down and to the right in the direction of Earth. Earth isn't visible in the image, but Voyager is among the stars. In the background, there is also a long, deep blue ribbon of gas and dust stretching from the bottom of the image to the top.

ALT A face-on spiral galaxy whose orientation gives us an unobstructed view of its disk. X-ray emissions from Chandra (magenta) detail energetic X-ray binaries and supernova remnants scattered across dust lanes in an optical image (white, blue and gold) from Adam Block with Mt. Lemmon Observatory. Face-on orientations are important for galactic studies because they provide the most unobstructed views of a galaxy’s stars and gas. Credit: X-ray: NASA/CXC/SAO; Optical: Adam Block/Mount Lemmon SkyCenter/University of Arizona; Image Processing: NASA/CXC/SAO/L. Frattare
























