Our Sun, the celestial body that has nurtured life on Earth for billions of years, is not eternal. This massive ball of gas ...

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...

All organisms on Earth ride upon a "ferrous wheel" made of different forms of iron that are essential for life. Aa Aa Aa Biogeochemical cycles describe pathways by which chemical elements move ...

life has a disproportionate affect on Earth's carbon cycle." Another aspect of the research is what is says about the absolute limits of life on Earth in terms of temperature, pressure ...