Kepler-186f - Red Grass Panorama Image Credit: ESO/J

Image Credit: ESO/J

glowing gas

Now forty years later

green is singly-ionized sulfur

The Hubble images offer the best view yet of the nebula

Kepler-186f - Red Grass Panorama Image Credit: ESO/JKepler 186f is the first Earth size planet discovered in the potentially 'habitable zone' around another star, where liquid water could exist on the planet's surface. Its star is much cooler and redder than our Sun. If plant life does exist on a planet like Kepler 186f, its photosynthesis could have been influenced by the star's red wavelength photons, making for a color palette that's very different than the greens on Earth. This discovery was made