What Observational Evidence Do We Have That Quasars Are the Centres

Q8: How does the unified model describe an

Q10: Suppose you want to know the distance

Q12: If the Hubble Space Telescope were used

Q14: When does gravitational lensing occur?<br>A)when light passes

Q15: Centaurus A is a radio galaxy that

Q16: Why were quasars so mysterious when first

Q17: Our galaxy is not a radio galaxy,but

Q18: What is the most important difference between

Q89: When two galaxies collide, they pass through

Q117: Why are there few quasars at low