Math Archives — StarDate Online

Reflective Solar Cooker

This reflective solar cooker uses the Sun’s energy to cook marshmallows. The target cooking area is the space where the […]

One of the most stupendous discoveries in astronomy came with the recent application of supernovae — the explosions of massive

All of the stars, galaxies, and nebulae seen by telescopes make up only four percent of the contents of the

Astronomers use several different methods to date the universe. In recent years, results from these differing methods have been coming

How do astronomers find planets outside our solar system? The most successful search method used to date is called the

Are we alone in the universe? This question has captured the imaginations of scientists, theologians, and philosophers for millennia. And

If the Sun were compressed to a diameter of just four miles (6 km), its escape velocity would equal the

Astronomers have developed several techniques to indirectly measure the vast distances between Earth and the stars and galaxies. In many

Alignments of the fast-moving inner planets can occur as regularly as every few months or so, while groupings of the