Why is the Webb Telescope Optimized to Observe Infrared Light?

What are the Main Science Goals of the Webb Telescope?

What is the James Webb Space Telescope?

What is the Hubble Space Telescope?

Why Do We Put Telescopes in Space?

What is Meant by Spiral Nebula?

What is the Big Crunch?

What are the Basic Properties of Astronomical Objects?

What is the Local Group of Galaxies?

What Does it Mean to “Know” Something in Science?

How Can Atoms and Thus Matter be Mostly Empty Space?

What are Interacting Galaxies?

How do the Sun and Other Stars Shine?

What are Giant Molecular Clouds?

How do We Know that the Milky Way Galaxy is Spiral in Shape?

What is Meant by the 21 Centimeter Radiation of Hydrogen?

How are Neutron Stars and Pulsars Related?

What is a Neutron Star?

What is a White Dwarf Star?

How do We Know the Ages of Stars?