Site Glossary

A lens close to the specimen that provides magnification.

Information obtained by examining or measuring something.

A facility equipped with telescopes and scientific instruments for observing astronomical objects.

The tendency of atoms to achieve eight electrons in their outer shell through bonding.

A gene that can promote excessive cell growth when abnormally activated.

A collision in which motion occurs along a single straight line.

the curved path of one object around another due to gravity.

the time required to complete one orbit.

the speed of an object as it travels through its orbit.

the velocity required for an object to follow a particular orbit.