Space
Millions of these are in our galaxy, and billions are in our universe. The sun is one of these.
Stars
Which law describes the motion of light as it reflects off a surface.
Snell's Law
The negatively charged particle orbiting an atom
Electron
Famous physicist who came up with the concept of gravity, made 3 laws to explain the motion of objects, and invented calculus.
Isaac Newton
Name of the new satellite telescope that recently took off into space.
James Webb Telescope
Galaxy closest to our galaxy (Milky Way)
Andromeda
Theory that attempts to explain the odd behavior of gravity in galaxies with a new undiscovered particle which barely interacts with baryonic matter.
Dark Matter
Boson that carries the electromagnetic force (light)
Photon
Physicist who came up with the theory of relativity, also helped in developing the theory of quantum mechanics
Albert Einstein
Hottest planet in our solar system
Venus
Densest object in our universe that is not a black hole.
Neutron Star
Theory in 2 parts: one explains gravity and its effects while the other describes phenomena in the absence of gravity, formulated by Albert Einstein.
Relativity
Positively charged quark. Protons are made up of 2 of these, neutrons are made up of 1.
Up quark
Recent physicist who came up with the idea of black holes emitting radiation.
Stephen Hawking
First person in space
Yuri Gagarin
Luminous and energetic objects powered by black holes that are found in the center of galaxies.
Theory that tries to explain the accelerating expansion of the universe
Dark Energy
Particle that is similar to the electron in size and mass, but carries no charge. Only interacts via weak force and gravity.
Neutrino
Physicist who theorized the heliocentric model (the Earth orbits the Sun), which replaced the earlier geocentric model of the solar system.
Objects in space theorized by general relativity that spew out objects and cannot be entered from the outside.
White hole
Radiation that fills up all of space, which does not come from any specific object in space. Glows strongest in the microwave region of the light spectrum, and serves as evidence for the Big Bang.
Cosmic Microwave Background Radiation
Theory that states that every particle in existence can be explained by a series of vibrating one dimensional objects.
String Theory
Particle which explains the phenomenon of mass. Theories state that there is a field around us filled with these that gives objects their mass.
Higgs Boson
Astrophysicist who discovered that the universe expands beyond the Milky Way and that redshift increases with distance. Provided evidence that the universe is expanding, the theory is now named after him.
Edwin Hubble
Stars stop the process of nuclear fusion once they create this element (most stable element; no more energy can be created by fusing this element).
Iron