What is a Planet?
What is a Planet? - NASA Science
A planet as any of the large bodies that revolve around the Sun in the solar system. In 2006, the International Astronomical Union (IAU)
What Is a Planet? | NASA Space Place – NASA Science for Kids
What Is a Planet? The Short Answer: A planet must do three things: it must orbit a star, it must be big enough to have enough gravity to force a spherical shape ...
The Solar System has eight planets by the most restrictive definition of the term: the terrestrial planets Mercury, Venus, Earth, and Mars, and the giant ...
What is a Planet? - National Geographic Kids
A planet must orbit the sun, be large enough so that its own gravity molds it into a spherical shape, and it must have an orbit free of other small objects.
What Is a Planet? (And Why Pluto Doesn't Fit the Definition) | Space
Astronomers define a planet as an object that orbits the sun (but not another object), is round (or nearly so) and has cleared the area ...
What Is a Planet? | PBS LearningMedia
Learn about the debate over the definition of a planet in this video from NOVA scienceNOW. Historically, there has been no scientific definition for a ...
Planet | Definition, Characteristics, & Facts | Britannica
Planet, broadly, any relatively large natural body that revolves in an orbit around the Sun or around some other star and that is not ...
What Is A Planet? | The Planetary Society
“Planet” is a word used by the ancient Greeks to describe stars, visible to the naked eye, that moved in relation to the fixed, background stars.
Definition of planet - Wikipedia
A planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has cleared its neighbourhood of smaller objects ...
Scientific definition of a planet says it must orbit our sun. A new ...
The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into ...
What is a Planet? - American Geosciences Institute
In the solar system there are nine known planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn,. Uranus, Neptune, and Pluto. 2. One of the seven celestial ...
Planets: What Exactly is a Planet? | Science Trek - YouTube
How we've defined what a planet is has changed over time. Is Pluto a planet? Is Ceres? Find out the difference between a planet and a dwarf ...
What exactly is a planet? Scientists propose improved definition
The proposal refines current definitions that require planets to be round bodies which orbit our sun and have 'cleared' their ...
Video: Planet Definition, Acronyms & Types - Study.com
What is a planet? An official planet definition can be confusing, so learn what classifies a planet and facts about all the planets around our...
What is a Planet? - AAS Division for Planetary Sciences
A planet as an object orbiting a star which is large enough so that its gravity would pull it into an approximate sphere.
In our solar system, planets are the major bodies orbiting the Sun.
Historically, re- voking the planetary status of Pluto would not be unprecedented; the ranks of ex-planets include the sun, moon and asteroids. Nevertheless, ...
WHAT IS A PLANET? - IOPscience
Observations later revealed that Pluto resembles neither the terrestrial nor the giant planets. Pluto is smaller than seven moons in the solar system, and its ...
A planet is an end product of disk accretion around a primary star or substar. I quantify this definition by the degree to which a body dominates the other ...
How to Define a Planet – The Sequel - Sky & Telescope
A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces.
What is a Planet?
Men Are from Mars, Women Are from Venus
Book by John GrayMen Are from Mars, Women Are from Venus is a book written by American author and relationship counselor John Gray. The book states that most common relationship problems between men and women are a result of fundamental psychological differences between the sexes, which the author exemplifies by means of its eponymous metaphor: that men and women are from distinct planets—men from Mars and women from Venus—and that each sex is acclimated to its own planet's society and customs, but not to those of the other.