According to our HST deep surveys, which of the below are NOT less common now than in the early universe?
A) irregular galaxies
B) spiral galaxies
C) quasars
D) active galaxies
E) elliptical galaxies
B
You might also like to view...
An observer on Earth's geographic north pole would find
a. Polaris directly overhead. b. Polaris 40° above the northern horizon. c. that the celestial equator coincides with the horizon. d. celestial equator passing directly overhead. e. that the ecliptic coincides with the horizon.
What is the lowest frequency that will resonate in an organ pipe 1.00 m in length, closed at one end? The speed of sound in air is 340 m/s
a. 42.5 Hz c. 170 Hz b. 85.0 Hz d. 680 Hz
The simplest scope design, by Isaac Newton, uses only a primary mirror
Indicate whether the statement is true or false
In a polyethylene long-chain molecule, the carbon-carbon and hydrogen-carbon bonds are all ______________bonds.
Fill in the blank(s) with the appropriate word(s).