What does crescent waning mean?

What is the future outlook for astronaut? Who was with Neil Armstrong when he landed on the moon? How are the inner and outer planets alike and different? How do scientists catch a tornado? Why does the pattern of stars in the constellations stay the same? What color is the CRF Star? Where those the sun rise first? What are methods for classifying clouds? Apollo would like to see? Are white dwarf stars bright? What challenges did Valentina Tereshkova encounter throughout her life? Most of the nitrogen found in the atmosphere is found in what form? Why was it good that annemarie did not know what was in the packet? Where did dr patricia bath invent the laserphaco probe? Which are the new planets? What is la lune brille in English? Why does the word month come from the word moon? What is the collection of ancient stars found in the center of the local group called? What address do you send letters to NASA to? How the moon appears to change its shape?