DICTIONARY LOOKUP
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Our Star
The sun is a star, a hot ball of glowing gases at the heart of our solar system. Its influence extends far beyond the orbits of distant Neptune and Pluto. Without the sun's intense energy and heat, there would be no life on Earth. And though it is special to us, there are billions of stars like our sun scattered across the Milky Way galaxy.

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  News Features People Extreme Facts Dictionary

 
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facula

A circular to subcircular region which is brighter than the surrounding area.

filament

A strand of cool gas suspended over the photosphere by magnetic fields, which appears dark as seen against the disk of the Sun; a filament on the limb of the Sun seen in emission against the dark sky is called a prominence.

Filament on the fiery surface of the sun.
fireball

A bright meteor.

fissure

a narrow opening or crack of considerable length and depth.

fluctus

Flow terrain.

fossa

A long, narrow, shallow depression.

fracture

A break or crack.

friction

The rubbing of one surface or thing again another.

 
Can't find it? Don't understand it? Ask us.
Q
facula

A circular to subcircular region which is brighter than the surrounding area.

filament

A strand of cool gas suspended over the photosphere by magnetic fields, which appears dark as seen against the disk of the Sun; a filament on the limb of the Sun seen in emission against the dark sky is called a prominence.

Filament on the fiery surface of the sun.
fireball

A bright meteor.

fissure

a narrow opening or crack of considerable length and depth.

fluctus

Flow terrain.

fossa

A long, narrow, shallow depression.

fracture

A break or crack.

friction

The rubbing of one surface or thing again another.