On this Earth Day, we reflect on how 50 years of climate change has transformed our planet, as captured in iconic satellite images. NASA invites everyone to join in the celebration by writing their names in satellite images and exploring the wonder of Earth through innovative observation technologies. Various resources, including posters and virtual backgrounds, are available to enhance the appreciation of our planet. Happy Earth Day from NOAA Satellites and NASA, as we look forward to discussing the environment and our shared responsibility in preserving it.