Moonwalk Crossword

He proposed elliptical orbits of planets
Periodic reversal in the motion of planets
Cooler, strong magnetic regions in sun's surface
It occurs when solar winds strike Earth's magnetosphere
Apparent elongation of wavelength due to drifting away of galaxies
Appearance of two full moons in a month
Subatomic particle having one up & two down quarks
William Herschel is credited with discovery of this first "invisible" light, initially named as Calorific Rays
Vernal Equinox is currently located in this constellation
Widest gap in Saturn's rings referred as "___" division
First ever systematic star atlas, produced by Johann Bayer
A famous Toy Story character; named after Edwin "__" Aldrin, second man to step on moon
"Head" of a comet, gaseous blanket surrounding its nucleus
Gravitational accumulation of particles around a massive object
Satellite made of silicates and thick water-ice crust
____ rays, stream of highly energetic atomic nuclei at approaching light speed