Site Glossary
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Browse the glossary using this index
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Natural satellitea naturally occurring satellite, such as a moon. | |
NebulaA giant cloud of gas and dust where new stars are born. | |
Negative accelerationAcceleration in the chosen negative direction. | |
Negative velocityMotion in the direction opposite to the chosen positive direction. | |
Net forceThe overall force resulting from all forces acting on an object. | |
Neutrinoan electrically neutral elementary particle that interacts very weakly with matter. | |
Neutron StarAn extremely dense stellar remnant produced after some supernovae. | |
Next-generation observatorya new or planned facility designed to provide capabilities beyond current instruments. | |
Nuclear FusionThe process in which hydrogen nuclei combine to form helium, releasing energy. | |