What if a star emits a different color of light?

Jan Ingenhousz published the research on photosynthesis in 1779.

• He placed plants into a transparent container and submerged them in water
• Small bubbles appeared on the bottom of the plants
• The bubbles only appeared on the green parts
• He found that the bubbles s...

The earth's surface is covered with green plants and bacteria, which absorb a lot of red light and reflect a lot of visible and infrared light from the sun.

This leads to this really cool feature of life on earth: the red edge.

• satellites around earth use this to trace vegetation...

It might be blue, or not even visible light.

The researchers' goal was to figure out where future telescopes should look for a red edge, or whatever color it is.

These findings could help scientists find vegetation on other planets in the next few decades.

Until recently, blue-green algae were thought to be the first organisms to photosynthesize, about 2.7 billion years ago.

In a 2018 study, scientists found out that ancient microbes have been photosynthesizing 1 billion years earlier than thought.

• complex life would have been able...