Comets
What is the very core of a comet called?
Nucleus.
Mercury's diameter compared to Earths moon is
Larger than the moon.
How old is the Earth?
Approximately 4.5 Billion years old.
What are asteroids composed from?
Metal and Rock.
How far is Pluto from the Sun?
5.9 Billion Kilometers.
What does the magnitude tell about a comet?
How bright it is.
MESSENGER was the first space probe sent to Mercury to map its surface. (True or False)
False.
False, approximately 70%.
Where is the asteroid belt located?
Between the orbits of Mars and Jupiter.
When was Pluto disocvered?
1930.
At what star does the tail of a comet face?
The sun.
What was the name of the first spacecraft visit Mercury?
Mariner.
How fast does Earth travel our the orbit around the Sun?
67,000 MPH.
What's the difference between an Comet and a Asteroid?
Asteroids are made up of Rock and Metal while comets are made up of dust and ice.
The Hubble Space Telescope photographed Pluto in 1990. (True or False).
True.
What do comets orbit around?
The sun.
What was the first spacecraft sent to Venus to analyze the atmosphere?
Pioneer Venus.
How far is Earth from the Sun?
About 93 million miles.
66 Million years ago, the prehistoric Chicxulub impact.
Who discovered Pluto?
Clyde Tombaugh.
What is the name of the comet that hit Earth?
Tunguska.
Why is Venus so much hotter than Mercury?
The atmosphere is very thick, and traps the suns heat.
What is the most common element in Earths atmosphere.
Nitrogen.
What do we call an object smaller than a planet but with gravity too weak to form a spherical shape?
Where does Pluto reside in the Universe?
The Kuiper Belt.