![]() Observations from space telescopes have revealed thousands of exoplanets of different of sizes, compositions, temperatures, and atmospheres, including seven rocky Earth-sized planets of the TRAPPIST-1 system, 40 light-years from Earth (artist’s illustration). Published on: MaAdvertisement If you want to get your hands on some NASA-approved PCs, you have a few different options. Download and print a high resolution poster or save the wallpaper to use as your computer desktop or mobile device virtual background. ![]()
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