Explore 19 English words about talking about astronomoy with pronunciation, definitions and example sentences.
a spacecraft with the purpose of cricling around a celectial obejct without landing on it
"The orbiter circles the planet."
"The orbiter sent back detailed images of the planet's surface, helping scientists learn more about its atmosphere."
the study of the movements of stars and planets that are thought to affect people and the world
"She reads astrology every morning."
"My friend believes in astrology and checks her horoscope every single day before making important decisions."
an object sent into space to travel around the earth and send or receive information
"The satellite sends data daily."
"A communication satellite was launched into orbit to improve television and internet signals across the entire country."
all that exists in the physical world, such as space, planets, galaxies, etc.
"The universe is very big."
"Scientists believe the universe is constantly expanding and contains billions of galaxies that we have not yet discovered."
a large number of star systems bound together by gravitational force
"Our sun belongs to the Milky Way galaxy."
"The Andromeda Galaxy is on a collision course with our own"
a huge round object that moves in an orbit, around the sun, or any other star
"Jupiter is the largest planet in our system."
"The search for a habitable exoplanet is a primary goal of modern astronomy."
the large, bright star in the sky that shines during the day and gives us light and heat
"The sun provides light and warmth."
"We sat outside and enjoyed the warm sun while having lunch in the garden."
the sun and the group of planets orbiting around it, including the earth
"Our solar system includes eight planets."
"The Voyager probes are now traveling beyond the boundaries of our solar system into interstellar space."
the path an object in the space follows to move around a planet, star, etc.
"The moon orbits around Earth."
"The International Space Station completes one orbit around the Earth approximately every ninety minutes at high speed."
a vehicle designed to travel in space
"The spacecraft docked with the space station."
"An uncrewed spacecraft was launched to explore the methane lakes of a distant moon."
clothing used by astronauts while traveling in space
"He wore a spacesuit today."
"Before stepping outside the spacecraft, the astronaut carefully put on his spacesuit to protect himself from the vacuum of space."
the universe, particularly when it is thought of as a systematic whole
"The cosmos is very mysterious."
"Looking at the stars at night reminds us how small we are compared to the vast and beautiful cosmos around us."
a US government agency responsible for space travel and the study of space
"NASA sends rockets into space."
"NASA's Perseverance rover is currently exploring the surface of Mars for signs of ancient life."
the circular object going around the earth, visible mostly at night
"The full moon illuminated the dark night."
"Ganymede is a fascinating moon of Jupiter"
a piece of equipment by which the far objects, particularly those in space, are made clearly visible
"He looked at the stars through his telescope."
"The Hubble Space Telescope has provided breathtaking images of the distant universe."
someone who is trained to travel and work in space
"She wants to be an astronaut."
"The astronaut spent six months living and conducting scientific experiments aboard the International Space Station in orbit."
the distance that light travels in a year (about 9.46 trillion kilometers)
"A light-year is a measure of distance."
"The nearest star to our sun is over four light-years away in the Alpha Centauri system."
a pale band of light seen in the sky at night that contains the solar system and billions of other stars
"Our solar system is in the Milky Way."
"The Milky Way appears as a hazy band of light arching across a dark night sky."
the explosion that, according to most scientists, caused the existence of the universe
"The big bang started everything."
"According to the big bang theory, the universe began from an extremely hot and dense point billions of years ago."
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