Relationship Among Common "Objects" in the Universe
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The Universe
Worth Watching
(comedy & science).
Worth Watching
(comedy & science).
Relationship of Objects in the Universe
Introduction
The Universe
Solar System
A galaxy is a large body made up of millions, sometimes billions, and even trillions of stars
and star systems. Simply stated, a galaxy is a huge rotating body of stars, star systems,
gases and interstellar dust. This rotation occurs around some central point, a center of
gravity. It is believed that there is a black hole at the center of many galaxies, including our
own galaxy, the Milky Way.
There are billions of galaxies. Of these, most have been given 3 classifications: spiral
galaxies, elliptical galaxies, and peculiar or irregular galaxies. For more information on the
three types of galaxies, visit the Web-Science Galaxy web page.
and star systems. Simply stated, a galaxy is a huge rotating body of stars, star systems,
gases and interstellar dust. This rotation occurs around some central point, a center of
gravity. It is believed that there is a black hole at the center of many galaxies, including our
own galaxy, the Milky Way.
There are billions of galaxies. Of these, most have been given 3 classifications: spiral
galaxies, elliptical galaxies, and peculiar or irregular galaxies. For more information on the
three types of galaxies, visit the Web-Science Galaxy web page.
Relationships among the different objects that make up our universe become increasingly difficult to
describe the farther we get from the Earth and our own solar system. The Universe is the most
difficult to define because we are dealing with times, distances, and quantities beyond our limited
imaginations. Size-wize, the universe is the largest of physical things we know.
Listed below are several "objects" that are shown in increasing order of size.
describe the farther we get from the Earth and our own solar system. The Universe is the most
difficult to define because we are dealing with times, distances, and quantities beyond our limited
imaginations. Size-wize, the universe is the largest of physical things we know.
Listed below are several "objects" that are shown in increasing order of size.
The universe is a big place. Its size is beyond the comprehension of most of us. It contains all the
known matter and energy. Just a galaxy is made of possibly trillions of stars, the universe is thought to
contain billions, possibly trillions of galaxies. Scientific measurements show us that these galaxies are
moving away from a central area. It is an expanding universe. A Catholic priest first proposed the
notion of the universe beginning as a "primeval atom." Edwin Hubble, a physicist, provided initial
evidence to support what has now been deemed "The Big Bang." Numerous other data points in a
similar direction, toward an initial moment of intense energy and expansion.
Some scientists think there may be more than one universe. Multiverse is the term that is used for the
concept of many possible universes similar to ours.
known matter and energy. Just a galaxy is made of possibly trillions of stars, the universe is thought to
contain billions, possibly trillions of galaxies. Scientific measurements show us that these galaxies are
moving away from a central area. It is an expanding universe. A Catholic priest first proposed the
notion of the universe beginning as a "primeval atom." Edwin Hubble, a physicist, provided initial
evidence to support what has now been deemed "The Big Bang." Numerous other data points in a
similar direction, toward an initial moment of intense energy and expansion.
Some scientists think there may be more than one universe. Multiverse is the term that is used for the
concept of many possible universes similar to ours.
Hubble Gallery!
HubbleSite's
exceptional set of
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HubbleSite's
exceptional set of
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movies, and info.
From Smallest to Largest:
Earth
Distance from Earth to Moon
Distance from the Sun to the Earth
Distance from the Sun (center) to the outer rim of our Solar System
Galaxy
Universe
Earth
Distance from Earth to Moon
Distance from the Sun to the Earth
Distance from the Sun (center) to the outer rim of our Solar System
Galaxy
Universe
At the center of our solar system is the Sun. It has more mass than all the other objects in
the solar system combined. It is a medium-size star orbited by eight planets and their moons,
Pluto and other dwarf planets, asteroids, and other smaller objects.
We use miles or kilometers when we are referring to distances on Earth or between the Earth
and the Moon. Distances in space, however, become very large numbers when we use miles
or kilometers. In our solar system we use Astronomical Units, abbreviated AU. One
Astronomical Unit is the distance from the Sun to the Earth.
The following link will take you to Science Monster's website. It illustrates the size
relationships of various objects in our solar system.
Science Monster Solar System webpage.
the solar system combined. It is a medium-size star orbited by eight planets and their moons,
Pluto and other dwarf planets, asteroids, and other smaller objects.
We use miles or kilometers when we are referring to distances on Earth or between the Earth
and the Moon. Distances in space, however, become very large numbers when we use miles
or kilometers. In our solar system we use Astronomical Units, abbreviated AU. One
Astronomical Unit is the distance from the Sun to the Earth.
The following link will take you to Science Monster's website. It illustrates the size
relationships of various objects in our solar system.
Science Monster Solar System webpage.
Web-Science.net
A Middle School Level Website