Exoplanets are the celestial bodies orbiting stars other than our Sun. Their small size makes them difficult to detect from Earth, particularly as they appear much dimmer than their parent stars ...

Isolated Planetary-Mass Object SIMP 0136 This striking wallpaper illustrates the isolated planetary-mass object SIMP 0136, as imagined from recent James Webb Space Telescope data. With a mass about 13 ...

May - Cool as Ice Every winter, a layer of carbon dioxide frost (dry ice) forms on the surface of Mars. At its greatest extent in midwinter, this frost reaches from the poles down to the middle ...

This is a collection of illustrated posters in NASA's annual celebration of Earth Day. High resolution printable PDF files are available for download by clicking on each image.