Word of the Day
Word of the Day
Word of the Day
Word of the Day
Word of the Day
100

____________:a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars, that is occupied by a great many solid, irregularly shaped bodies, of many sizes but much smaller than planets, called asteroids or minor planets. 

asteroid belt 

100

____________:originating in and characteristic of a particular region or country; native 

indigenous

100

_____________:is a microscopic organism, which may exist in its single-celled form or a colony of cells. 

microbes 

100

_______________:is one of the four fundamental states of matter,  It consists of a gas of ions – atoms which have some of their orbital electrons removed – and free electrons. 

plasma

100

___________: is the innermost and third-largest of the four Galilean moons of the planet Jupiter. It is the fourth-largest moon in the Solar System, has the highest density of all of them 

IO

200

_____________:also known as the Seven Sisters and Messier 45, are an open star cluster containing middle-aged, hot B-type stars in the north-west of the constellation Taurus.

Pleiades

200

__________: is a colourless,oderless, flammable, very toxic gas compound with the chemical formula PH3, classed as a pnictogen hydride. 

phosphine

200

_______________: convex at both edges, as the moon when more than half full. 

Gibbous

200

____________:is a star-forming microcosm that exhibits, within a relatively small area, all of the classic manifestations of stellar birth 

Natal cloud

200

___________:consisting of, indicating, or involving two.

binary

300

______________:any of various groups of stars to which definite names have been given 

constellation

300

_____________: gets its name from the Native Americans, according to the Farmers Almanac. This moon was an indicator that it was time to harvest the corn.

corn moon

300

______________:the temperate or tepid climates of Earth occur in the middle latitudes, which span between the tropics and the polar regions of Earth. 

temperate belt

300

___________:are generally any chemical compounds that contain carbon-hydrogen bonds. 

organic compounds

300

____________: is a form of electromagnetic radiation with wavelength from 10 nm  to 400 nm, shorter than that of visible light but longer than X-rays. 

ultraviolet light

400

___________:Gravitational waves are disturbances in the curvature of spacetime, generated by accelerated masses, that propagate as waves outward from their source at the speed of light.

gravitational radiation

400

_________: is the first major optical telescope to be placed in space, the ultimate mountaintop. 

hubble

400

________________:a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space.

galaxy 

400

____________: is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons 

ionized

400

___________: is an extremely luminous active galactic nucleus (AGN), in which a supermassive black hole with mass ranging from millions to billions of times the mass of the Sun is surrounded by a gaseous accretion disk.

quasar

500

_________________: flow is fluid motion characterized by chaotic changes in pressure and flow velocity. 

turbulent

500

___________: is an event that occurs when one object is hidden by another object that passes between it and the observer. 

occulation

500

___________: A visible, thinly spread cloud of interstellar gas and dust. 

nebula

500

__________: is a dark feature on Mars. It was once called "Oculus" and is still commonly called "The Eye of Mars" because with the surrounding light area called Thaumasia it resembles the pupil of one. 

Solis Lacus

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