Learn about the diversity of living things from the tiniest microbes to the largest plants and animals. Discover the role genetics plays in that diversity and in human health.

Meet astronomists both young and old, read an interview with the Sun, or explore a geological glossary. Learn about the events and forces that shape the Earth, other planets, and the stars.

Explore ways that heat energy interacts with matter, from the formation of rocks and climate change here on Earth to the creation of sunspots, solar flares, and coronal loops on the Sun.