[Image: "The greenery on other planets may not be green," New Scientist reports. Indeed, alien vegetation may be orange and yellow – "so the foliage would wear bright autumn colours all year round" – or even black: flowers the color of charcoal blooming over electrically charged soil. But why not transparent vegetation...? Vast equatorial jungles full of transparent plantlife, rooted on blocks of quartz, glowing from within as twin suns set behind wooded plateaus in the distance. (Above illustration by Doug Cummings @ Caltech)].