Hailey Alvarez
Astronomy teacher | Tutor for 6 years
Passionate about unraveling the mysteries of the cosmos, I hold a degree in Astronomy from the University of Nevada, Reno. As a dedicated educator, my mission is to make the wonders of the universe accessible to all. With a profound love for teaching, I'm here to answer your questions across all subjects. Let's embark on a journey of discovery together!
Questions
What is the purpose of the sun?
How much bigger is the Sun compared to the Earth?
If a black hole swallows the earth, would we still be pulled by earth's gravity or would we be pulled by the black hole's gravity?
How do massive stars end their life cycle?
What are supermassive black holes?
How do we have pictures of our own milky way galaxy if we live in it?
What stops the stars that make the galaxy from just straying off on their own? How does eveyrthing stay together?
What is the closest star to Earth besides the sun?
How do scientists know what colors to use when enhancing space images? Or do they take educated guesses?
How do observations of distant supernovae show that the expansion of the Universe is accelerating?
How is the universe organized?
An asteroid is three times as far from the Sun at aphelion than at perihelion. At perihelion the orbital speed of the asteroid is 25 km/s. What is the orbital speed of the asteroid at aphelion?
How did scientists come up with the Theory of the Big Bang?
What lies at the center of the Milky Way?
Stellar parallax measurements are used in astronomy to determine which properties of stars?
What does light refraction refer to?
How many parsecs is the sun from earth?
Does weak nuclear force cause radioactivity?
What telescope was launched in 1990 and takes very detailed pictures of the universe?
What is electromagnetic radiation composed of?