General relativity
by Gemma Church
A theory of gravity that warps spacetime
AstronomyCosmologyPhysicsMarch 11, 2020
HomeAuthorGemma Church, Author at Science Is Simple
Special relativity
by Gemma Church
Physics is the same for every perspective and the speed of light is constant
Black holes
by Gemma Church
Objects so massive that even light cannot escape
Dark energy
by Gemma Church
Produces a repulsive force to repel (push away) things
Dark matter
by Gemma Church
Matter that does not absorb, reflect or emit light or energy
What is astronomy?
by Gemma Church
The study of objects in space and space itself
Electromagnetic Spectrum
by Gemma Church
A continuous band of energy that radiates (travels out) of an object
Photons
by Gemma Church
Particles that exchange the electromagnetic force (including light)