Astronomy Flashcards
The region on the solar surface that appears dark because it’s cooler than the surrounding photosphere is _______________________
Sunspot
The planet that is named after the Roman goddess of love and beauty is _______________________
Venus
One of the brightest nebulae visible in the night sky is _______________________
Orion Nebula
The aura of plasma that surrounds the Sun and other celestial bodies is _____________
Corona
An icy small heavenly body that heats up and shows its tail when it passes close to the Sun is ______________________
Comet
It is also known as a shooting star or falling star: _______________________
Meteor
The sixth closest moon of Jupiter which was discovered in 1610 by Galileo Galilei is _______________________
Europa
A huge collection of stars, dust, and gas is _______________________
Galaxy
One of the four largest moons of Jupiter is _______________________
Europa
A big storm in the southern hemisphere of Neptune is _______________________
Great Dark Spot
The first spacecraft to orbit the planet Mercury is _______________________
MESSENGER
The largest planet in the solar system is _______________________
Jupiter
Who proposed the Big Bang theory?
Georges Lemaitre
Easily identifiable patterns of stars are _______________________
Constellations
Explosion of an old massive star after its fuel is exhausted is _______________________
Supernova
Dying stars that emit a white glow are _______________________
White Dwarfs
A cloud of interstellar dust or gas visible as patches of light or areas of darkness is _______________________
Nebula
The galaxy nearest to our own Milky Way is _______________________
Andromeda
Even light cannot escape from this region. _______________________
Black hole
This scientist proposed that planets move around the sun in elliptical orbits is _______________________
Johannes Kepler
A brief eruption of sudden rapid and intense radiation from the sun’s surface is _______________________
Solar Flare
This planet is named after the Roman messenger of God is _______________________
Mercury
Evening star is _______________________
Venus
The first visit to the moon was made by this Soviet spacecraft _______________________
Luna 1
The distance travelled by light in one year is _______________________
Lightyear
This theory states that our universe was formed 20 million years ago from a violent explosion is _______________________
Big Bang Theory
The scientific study of the origin and development of the universe is _______________________
Cosmology
