Hailey Alexander

What is the life cycle of a star that becomes a white dwarf?

Where are heavier element produced?

What do cosmologists work on during their day to day job?

What are black dwarfs made of?

How did Galileo conceptualize that the earth rotates around the sun and not the other way around?

Sirius has a parallax of 0.377 arc seconds. How far is it away?

How long (in seconds) does it take for a radio wave of frequency 8.94 × 106 s–1 to reach Mars when Mars is 8.2 × 107 km from Earth?

What force acts on the earth perpendicular to the force of the sun which causes the tangential accelerations characteristic of an ellipse?

What star Will emit more light a bright star or a fairly dim star?

What is the relationship between the earth's axial tilt and the temperature patterns around the globe?

What was the Universe before the Big Bang happened?

What is a planetary nebula made of?

In what direction does the earth revolve around the sun?

If Earth was the size of Jupiter, would humans be able to survive?

Why do stars pulsate and how does the pulse tell us the distance to the star?

Why is cosmic background radiation a microwave?

Which of the nuclear fuels does a one solar mass star use over the course of its entire evolution?

What is the big bang theory and how does it explain the formation of the universe?

Why do some astronomers think that Pluto should not be called a planet?

Do the planets ever align?