Starry starry night

Question 1

Define constellation.

Answer 1

A group of stars forming a recognizable pattern in the night sky.

Question 2

What is the Milky Way?

Answer 2

A barred spiral galaxy that contains our solar system.

Question 3

True or false: Planets emit their own light.

Answer 3

FALSE

Planets reflect light from stars, unlike stars that produce their own light.

Question 4

Fill in the blank: The North Star is also known as ______.

Answer 4

Polaris

Question 5

What is a telescope used for?

Answer 5

To observe distant celestial objects by magnifying their images.

Question 6

Define asteroid.

Answer 6

A small rocky body orbiting the sun, primarily found in the asteroid belt.

Question 7

What is a comet?

Answer 7

An icy body that releases gas or dust, forming a tail when near the sun.

Question 8

True or false: Stars are born in nebulae.

Answer 8

TRUE

Stars form from the gravitational collapse of gas and dust in nebulae.

Question 9

Fill in the blank: The sun is a type of ______.

Answer 9

Star

Question 10

What does light year measure?

Answer 10

The distance light travels in one year, about 5.88 trillion miles.

Question 11

Define galaxy.

Answer 11

A massive system of stars, stellar remnants, interstellar gas, dust, and dark matter.

Question 12

What is the Hubble Space Telescope known for?

Answer 12

Capturing high-resolution images of space, enhancing our understanding of the universe.

Question 13

True or false: Black holes can be seen directly.

Answer 13

FALSE

Black holes cannot be seen; their presence is inferred by their effects on nearby objects.

Question 14

Fill in the blank: The Earth’s rotation causes ______.

Answer 14

Day and night

Question 15

What is gravity?

Answer 15

The force that attracts two bodies toward each other, keeping planets in orbit.

Question 16

Define orbit.

Answer 16

The curved path of an object around a star, planet, or moon.

Question 17

What is a supernova?

Answer 17

A powerful explosion marking the death of a massive star.

Question 18

True or false: The moon has its own light.

Answer 18

FALSE

The moon reflects sunlight and does not produce its own light.

Question 19

Fill in the blank: Eclipses occur when one celestial body ______ another.

Answer 19

Obscures

Question 20

What is the solar system?

Answer 20

A collection of planets, moons, asteroids, comets, and the sun in orbit together.

Question 21

Define nebula.

Answer 21

A giant cloud of gas and dust in space, often the birthplace of stars.

Question 22

What is light pollution?

Answer 22

Excess artificial light that obscures the visibility of stars and celestial objects.

Question 23

True or false: Mercury is the hottest planet.

Answer 23

FALSE

Venus is the hottest planet due to its thick atmosphere, despite Mercury’s proximity to the sun.

Question 24

Fill in the blank: The Andromeda Galaxy is ______ from Earth.

Answer 24

The nearest spiral galaxy

Question 25

What is **stellar evolution**?

Answer 25

The process by which a star changes over time, from formation to death.

Question 26

Define **exoplanet**.

Answer 26

A planet that orbits a star outside our solar system.

Question 27

What is **dark matter**?

Answer 27

A form of matter that does not emit light or energy, detectable through gravity.

Question 28

True or false: **Asteroids** are larger than comets.

Answer 28

FALSE ## Footnote Asteroids are generally larger than comets, which are often smaller and icy.

Question 29

Fill in the blank: The **Pleiades** is a famous ______.

Answer 29

Star cluster

Question 30

What is the **Big Bang Theory**?

Answer 30

The leading explanation for the origin of the universe, stating it began from a singularity.

Question 31

Define **light spectrum**.

Answer 31

The range of different colors of light, from red to violet, visible to the human eye.

Question 32

What is **stellar parallax**?

Answer 32

The apparent shift in position of a nearby star against distant background stars.

Question 33

True or false: **Venus** rotates in the opposite direction of most planets.

Answer 33

TRUE ## Footnote Venus has a retrograde rotation, meaning it spins backward compared to its orbit.

Question 34

Fill in the blank: **Saturn** is known for its prominent ______.

Answer 34

Rings

Question 35

What is a **red giant**?

Answer 35

A late stage in a star's life cycle when it expands and cools.

Question 36

Define **cosmology**.

Answer 36

The study of the origin, evolution, and eventual fate of the universe.

Question 37

What is **space-time**?

Answer 37

The four-dimensional continuum combining the three dimensions of space and time.

Question 38

True or false: **Earth** is the only planet with liquid water.

Answer 38

FALSE ## Footnote Other celestial bodies, like Europa and Enceladus, also have subsurface oceans.

Question 39

Fill in the blank: The **Telescope** was invented in the ______ century.

Answer 39

17th

Question 40

What is **astrobiology**?

Answer 40

The study of the origin, evolution, and potential for life in the universe.

Question 41

Define **solar flare**.

Answer 41

A sudden eruption of energy on the sun's surface, releasing radiation.

Question 42

What is the **event horizon**?

Answer 42

The boundary around a black hole beyond which nothing can escape.

Question 43

True or false: **Neutron stars** are incredibly dense remnants of supernovae.

Answer 43

TRUE ## Footnote Neutron stars are formed from the collapsed core of a massive star after a supernova.

Question 44

Fill in the blank: **Gravity** is a force that pulls objects ______ each other.

Answer 44

Toward

Question 45

What is **planetary nebula**?

Answer 45

A shell of gas ejected from a star late in its life cycle.

Question 46

Define **quasar**.

Answer 46

An extremely bright and distant active galactic nucleus powered by a supermassive black hole.

Question 47

What is **space exploration**?

Answer 47

The use of astronomy and space technologies to explore outer space.