astronomy Crossword

greek word for star law
moon
vast expansion of space filled with this energy
dense and hot state and continues to expand today
an event that occurs upon the death of certain types of stars.
types of neutron stars; the dead relics of massive stars
colliding body
a light phenomenon caused by solar winds interacting with the Earth's magnetic field.
the study of life in the universe.
deals with measurements (as of positions and movements) of celestial bodies.
named patterns of stars.
a large, round object in space that moves around a star
an interstellar cloud of dust, hydrogen, helium and other ionized gases.
a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.
a subatomic particle found in the nucleus of every atom.
astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
National Aeronautics and Space Administration.
neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen
Around 150 AD Claudius Ptolemaeus wrote the great handbook of astronomy
International Astronomical Union
can briefly outshine entire galaxies and radiate more energy than our sun will in its entire lifetime.
the negatively charged particles of atom.
the second planet from the sun and our closest planetary neighbor.
the fifth planet from the Sun and the largest in the Solar System.
Cosmic Background Explorer
"the scientific study of the large scale properties of the universe as a whole."