Synonyms and antonyms of Planets, stars and other objects in space in American Thesaurus

antimatter (noun)

particles (=the smallest pieces that make up all substances) that are the exact opposites of all the particles in the universe

asteroid (noun)

a mass of rock that moves around in space. Most asteroids are found between the planets Jupiter and Mars, a region of space known as the asteroid belt.

the Big Dipper ()

a constellation (=group of stars) made up of seven stars that can be seen in the northern half of the world. The British word is the Plough.

black hole (noun)

astronomy an area in outer space where the force of gravity is so strong that light and everything else around it is pulled into it

celestial object (noun)

something in space, such as a star or planet

Ceres ()

a dwarf planet in the asteroid belt between Mars and Jupiter

cluster (noun)

astronomy a lot of stars that are close to each other

comet (noun)

a bright object in space that has a tail of gas and dust

constellation (noun)

astronomy a group of stars that form a particular pattern in the sky. Most of the constellations we know have been given names, for example Orion the Hunter and the Great Bear.

cosmic dust (noun)

extremely small pieces of matter found in space, often in clouds

dark matter (noun)

a substance that scientists think exists out in space, but for which they have no direct proof

dwarf (noun)

science a very small star that does not shine brightly

dwarf planet (noun)

a very large round object that moves around the Sun or a star. It is similar to a planet but without some of a planet's features.

Earth (noun)

the planet on which we live

exoplanet (noun)

a planet which is outside the Earth’s solar system

falling star (noun)

a shooting star

the Galaxy (noun)

an extremely large group of stars and planets

the Galaxy (noun)

the large group of stars and planets that the Earth and our sun are part of

gas giant (noun)

a large planet such as Jupiter or Saturn that consists mainly of hydrogen and helium

heavenly body (noun)

mainly literary a star, planet, or moon

Jupiter ()

the fifth planet from the Sun and the largest in the solar system

lodestar (noun)

the North Star

Mars ()

the fourth planet from the Sun and the second smallest in the solar system

Mercury ()

the small planet that is closest to the Sun

meteor (noun)

a large piece of rock from space that passes into the Earth’s atmosphere and appears as a bright light in the sky

the Milky Way ()

the group of planets and stars that the Earth belongs to and that you can see at night as a band of pale light across the sky

moon (noun)

an object similar to a planet that goes around another planet

the moon (noun)

the object similar to a planet that goes around the Earth and that you can see shining in the sky at night

nebula (noun)

a very large cloud of dust and gas that exists in outer space

Neptune ()

the eighth and furthest known planet from the Sun

the North Star ()

the bright star that you can see almost directly over the North Pole

nova (noun)

a star that unexpectedly becomes very bright and then returns to its normal brightness over a period of months or years

orb (noun)

the sun or the moon

planet (noun)

a very large round object that moves around the Sun or another star

plough ()

the British spelling of plow

the Plough (noun)

the Big Dipper

Pluto ()

a dwarf planet in the Kuiper belt beyond Neptune. It is the largest of the dwarf planets and was formerly classed as a planet.

pulsar (noun)

a type of star in space that produces a regular radio signal

quasar (noun)

a very bright object in space that looks like a star and produces a lot of energy

red giant (noun)

a very big red star

satellite (noun)

a natural object such as a moon that moves around a planet

Saturn ()

the sixth planet from the Sun and the second largest in the solar system

shooting star (noun)

a meteor that makes a line of light as it falls through the sky

solar system (noun)

a star and the planets that go around it, especially the Sun and the group of planets that includes the Earth

star (noun)

a very large hot ball of gas that appears as a small bright light in the sky at night

sun (noun)

any very bright star, especially one that a planet travels around

the Sun (noun)

the star in the sky that provides light and warmth to the Earth

supernova (noun)

an exploding star that produces an extremely bright light

Uranus ()

the seventh planet from the Sun, between Saturn and Neptune

Venus ()

the second planet from the Sun

white dwarf (noun)

a star that does not shine very brightly and is at the end of its life

world (noun)

any other planet