General Science

Question 1

what is a lunar eclipse

Answer 1

occurs when the Moon moves into the Earth’s shadow, causing the Moon to be darkened, sometimes turning the lunar surface a striking red over the course of a few hours

Question 2

what is a solar eclipse

Answer 2

happens when the Moon passes between the Sun and Earth, completely blocking the face of the Sun

Question 3

stages in the life of the universe

Answer 3

1. Primordial Era.
2. Stelliferous Era.
3. Degenerate Era.
4. Black Hole Era.
5. Dark Era.

Question 4

what is the redshift

Answer 4

an increase in the wavelength, and corresponding decrease in the frequency and photon energy, of electromagnetic radiation