Life on alien worlds may not be green, like many organisms on Earth, but instead may be purple. Microbes with purple-pigments may be better suited to survive on distant planets.

Purple bacteria that thrive in low-energy red or infrared light with a simpler method of photosynthesis could cover another planet, a new study says. Hotspots ranked Start the day smarter ☀️ ...

It’s unable to measure the reflected light from the planet’s surface. “The difficulty is to translate what we're studying in the laboratory to astronomical measurements,” agrees DasSarma.

The stellar display of purple-coloured lights on the red planet was shared on Instagram by the official handle of NASA. Since the video was captured and posted, it has mesmerised many people on ...

Mars isn’t a bright, fire-engine red, but the iron oxide in its rocks makes it appear redder than other planets, especially ...

Retinal, today found in the plum-colored membrane of a photosynthetic microbe called halobacteria, absorbs green light and reflects back red and violet light, the combination of which appears purple.