On Sunday, Sept. 22, day and night will be nearly equal in length as Earth spins side-on to the sun and autumn officially begins in the Northern Hemisphere. When you purchase through links on our site ...

African venture capital firm Equator has raised $55 million for its first fund, which will back climate tech startups through one of the most difficult and often overlooked phases in their journey: ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The remains of a ...

Africa contributes less than 3% of the world’s energy-related carbon dioxide emissions but the continent will be one of the most impacted by the adverse effects of climate change. Some explanations ...