191. Doppler is a crater located in:
192. What is the line that separates earth's atmosphere and outer space?
193. What is the percentage of dark energy in the observable universe?
194. Which is tidally locked to Tau Boötis b?
195. Recognize the image.
196. How big is the star NML Cygni?
1,980 times the Sun
1,650 times the Sun
1,460 times the Sun
2,180 times the Sun
197. What is a Grand design spiral galaxy?
Multiple spiral galaxy
A very dense spiral galaxy
A very large spiral galaxy
Has well-defined spiral arms
198. Abell 2667 is a:
199. Which was the first man-made object to reach the surface of Mars?
200. Hillary Montes is a mountain in: