The letters G U T  from the GUT Era stand for Grand Unified Theory. This theory explains how 3 of the fundamental forces are indistinguishable. Which three forces does it describe?

Select the correct location for the dwarf planets in the solar system

The least dense planet in the solar system is

The composition of Saturn’s rings are

Why is Venus hotter than Mercury, even though Mercury is closer to the sun?

The asteroid belt exists between the following planets

Edwin Hubble believed that galaxies morphed from one type into another. What is the name of the scheme he developed?

What does the color of a star directly tell us about the star?

Edwin Hubble believed that galaxies morphed from one type into another. What is the name of the scheme he developed?

Which of the following lists contain all terrestrial planets?