Astronomy Crossword

A widely used fluctuating point system in which numbers are expressed as products consisting of numbers
Each of the digits of a number that are used to express it to a recognized degree of accuracy, starting from the first nonzero digit
A unit of astronomical distance equivalent to the distance light travels in one year, approx. six trillion miles
A unit of distance used in astronomy, equal to about 3.26 light years
Measurement of angles or to which the extent to something happens or is present
Method of acquiring knowledge
Unit of work or energy, equal to the work done by the force of one Newton
Equal to the force that would give a mass of one kilogram
Every particle attracts every other particle equally in the universe
The minimum speed needed for a free, non-propelled object to escape from gravitational influence of a massive body
The strength or capacity for doing work
Strength or energy as an attribution of physical action or movement
Form of motion experienced by a launched object
The universal force of attraction between all matter
Quantity of a motion of a moving object, measured as a product of it's mass and velocity
Three laws describing the relationship between motion of an object and the forces acting on it
Laws regarding planetary motion