Origin of Universe
Enormous and estimated to be between 13-14 billion years old
What is the Universe?
Spectra are black lines that astronomers can determine not only the element, but the temperature and density of that element in the star
What are spectral lines?
a regular, repeating path that one object in space takes around another one
What is orbit?
The number of planets that orbit the sun in nearly circular orbits
What is eight?
any substance that cannot be decomposed into simpler substances by ordinary chemical processes. fundamental materials of which all matter is composed.
What is an element?
Current widely accepted theory of the origin of our Universe, states the universe began as a tiny singularity and violently exploded
What is Big Bang Theory?
hydrogen atoms fuse together to form helium, and matter is converted into energy, how stars create energy
What is nuclear synthesis?
The 24 hour motion of Earth spinning on its axis
What is Rotation?
Celestial objects in our solar system include asteroids, comets and these rocks entering earth's atmosphere commonly known as shooting stars
What are meteors?
Mass divided by volume will calculate any objects
What is density?
a space cloud of gas and dust
What is a nebula?
the coming together and cohesion of matter under the influence of gravitation to form larger bodies
What is accretion?
the force of attraction between all objects
What is gravity?
These planets are small, rocky, and dense
What is terrestrial?
The smallest unit of matter
What is an atom?
Pertaining to the universe beyond the earth's atmosphere
What is celestial?
the intensity of light as it varies with wavelength or frequency
What is the spectrum?
Orbiting around a celestial object
What is revolution?
These planets are large, gaseous giants with a low density
What are Jovian Planets?
When the core of a massive star becomes primarily iron, fusion can no longer produce energy. The core collapses under its own gravity, leading to a
What is a supernova explosion?
What is the most widely supported theory of the origin of our Solar System?
What is nebular hypothesis?
the outer atmosphere of the Sun and marks the edge of the Sun's magnetic influence in space
What is the heliosphere?
The force of gravity between two objects depends on two key factors
What is mass and distance?
Our sun is a average sized star located with a spiral galaxy known as the
What is the Milky Way?
This phenomena provides evidence of earth's revolution
What are seasons or constellations?