What powers life? In most ecosystems, sunlight is absorbed and converted into usable forms of energy via photosynthesis. These usable forms of energy are carbon-based. A primary example of this ...

When the last Apollo mission was on its way to the Moon four decades ago, one of the astronauts took a snapshot that is among the most famous in NASA history. It is known as the “blue marble ...

Photosynthesis, the process by which plants, algae and certain kinds of bacteria convert solar radiation into chemical energy ...