Spiral and Irregular Galaxies Have Active Star Formation

Q60: Gravitational lensing is caused by _.<br>A) refraction

Q61: Gravitational lensing can be used to detect

Q62: Spiral galaxies are mostly found _.<br>A) in

Q63: Which types of galaxies would contain very

Q64: Gravitational _ can be used to detect

Q66: Which types of galaxies lack an ordered

Q67: A standard candle is an object with

Q68: The Milky Way galaxy has collided with

Q69: The rotation curve of a galaxy is

Q70: The Hubble law is one of the