The Comet Pan-STARRS may be a challenge to spot in the evening sky, but it still dazzled stargazers around the world when it paired up with the moon Tuesday (March 12). Comet Pan-STARRS is currently appearing low on the western horizon just after sunset, making it hard to pick out in the bright evening twilight for some observers. But on Tuesday evening, a slender crescent moon served as a celestial guide for those stargazers with clear, dark skies. Just northwest of Rio Rancho, N.M., astrophotographer Josh Knutson and his 8-year-old daughter Aurora were amazed at the sight of Comet Pan-STARRS...