Explore the cosmic origins of gold, from its creation in supernovae to its presence on Earth. Discover the science behind this precious metal's journey through space and time.
Explore how astronomers measure the vast distances to stars and galaxies using light-years, trigonometric parallax, Cepheid variables, and Type 1a supernovae, allowing us to peer back in time and understand the universe's history.
Explore the fundamentals of space-time, the unification of space and time into a single, four-dimensional concept crucial for understanding the universe.