Thursday, April 3rd, is National Find a Rainbow Day. Hawai'i, the "Rainbow Capitol of the World," is known for its vibrant Ānuenue (rainbows), but climate change threatens their future. A ...

Enter MAROON-X, an instrument mounted on the Gemini North telescope in Hawaii that’s designed ... it takes Earth to complete one orbit around the sun. The outermost planet takes less than ...

MAROON-X measures the "radial velocity" — the slight wobble back and forth of Barnard's Star as it revolves around the center of mass shared between itself and the four orbiting planets.