Space Junk
What is “Space Junk”?
Comets, Asteroids, and Meteoroids
What are constellations?
Groups of stars that form a pattern
When was NASA created and who created it?
Oct 1, 1958, Congress and the President of the U.S.
Geocentric theory is?
Earth centered universe
How many seasons are there?
4
Comets are made of what?
Ice, dust, and rocky particles
Why are they important?
Helps in locating objects in the sky
Which war did the Space Race occur in?
The Cold War
Heliocentric theory is?
Sun centered solar system
To what degree is Earth’s axis tilted?
23.5
Asteroids reside where?
Between Mars and Jupiter, The Asteroid Belt
What causes the cyclic motion of stars?
The motions of the Earth: Rotation, Revolution, and Precession
Which countries were competing against each other?
The United States and The USSR (Russia)
Who created the geocentric theory and heliocentric theory?
Ptolemy and Copernicus
What time period is the northern hemisphere most tilted towards the sun?
The summer time
Why does a comet's tail face away from the sun?
Solar winds
Why does our view of the stars change?
Earth revolving around the Sun
Names of the first launched unmanned satellites from the US and USSR
Explorer 1 and Sputnik 1
Did Galileo invent the telescope?
No, he improved it
When does the Vernal and Autumnal Equinox occur?
March and September 21
Difference between meteroid, meteor, and meteorite?
A sand or boulder sized space debris
visible path of a meteoroid that has entered Earth’s atmosphere(shooting star)
a natural object coming from space that survives an impact with Earth’s surface
What is the imaginary sphere surrounding the Earth where all objects in the sky can be located?
The Celestial Sphere
Difference between the Mercury and Gemini programs
1st manned flights and walks in space (space walks)
What did Galileo discover/observe with the telescope?
4 Jovian moons (Jupiter moons), craters of the moon, and the Milky Way Galaxy
How many times a year is day and night equal everywhere?