Solar System
If water is found on Mars and sufficient energy is available from sunlight, this molecule is the final thing needed to support life.
H2O
By studying how much of each wavelength is emitted by a star, scientists can discover the star's ____
Temperature
This instrument helps scientists learn how inner planets form and if they could support life.
Probe
These types of EM wave reaches Earth's surface.
Visible light, radio waves, microwaevs
Sending probes to the Sun is an important step leading to further MANNED space exploration in the solar system because...
High energy charged particles can be harmful to astronauts.
Planets & moons do NOT emit light because...
They do not make their own energy
This type of energy is emitted by stars.
Radiant
This instrument is used to gather military information, transmit TV signals, and monitor weather.
Satellite
This instrument studies EM waves that are 300 m long.
Radio telescope
This technique would be used to study the terrain of an outer planet.
A space probe
These planets and moons show signs of the possibility of water.
Mars, Europa (and Titan)
Stars twinkle because...
Gases in Earth's atmosphere bend the light
This force helps power missions to the outer planets.
Gravity
This type of telescope would be best used on top of a mountain.
Optical telescope
This states that 15-20 billion years ago, the universe began expanding out of an enormous explosion.
Big Bang Theory
This is a region so dense that nothing, including light, can escape its gravity field.
Black hole
A sequence of star colors from hottest to coolest is...
Blue, yellow, orange, red
The first planet studied by use of a space probe was...
Venus
This type of telescope would be used best in the center of the Sahara desert.
Radio telescope
A galaxy that has a shape similar to a football.
Elliptical
The basic shape of every planet's orbit.
Ellipse
This is a huge collection of stars.
Galaxy
Rockets are used to overcome this force.
Gravity
These waves are used by space probes to send messages to Earth.
Radio waves
The distance Earth is from the Sun
1 Astronomical Unit (AU)