English Collins Dictionary - English synonyms & Thesaurus. 1 adj Something that is unique is the only one of its kind. Each person's signature is unique..., The area has its own unique language, Catalan. â¦ uniquely adv ADV group, ADV with v.
Solar flares are tremendous explosions on the surface of the Sun. In a matter of just a few minutes they heat material to many millions of degrees and release as much energy as a billion megatons of TNT.
A sunspot is a temporary dark spot on the photosphere layer of the sun that is caused by magnetic activity. The spots appear dark because that area is cooler than the surrounding photosphere. A solar flare is a sudden and tremendous eruption in the solar chromosphere.