aurora

• ظاهرة جوية ضوئية تظهر في السماء قرب القطبين على شكل أقواس أو ستائر أو أشرطة مضيئة، وتحدث عندما تصطدم الجسيمات المشحونة القادمة من الشمس بالمجال المغناطيسي للأرض وتتفاعل مع الغازات في الغلاف الجوي العلوي.

A noun referring to an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force.

1. Dawn or first lightB2formal

   The initial appearance of light in the sky before sunrise; the beginning of day.

   الفجر

   • The aurora of the morning painted the sky in soft hues.
   • He rose with the aurora to begin his journey.
   • The poet described the aurora as a herald of hope.

   المرادفاتbreak of daycockcrowdawndawningdaybreakdaylightdayspringfirst lightmornmorningsunrisesunup

   الأضدادduskeveningnightfalltwilight

2. Atmospheric light displayB1formal

   A natural light display in the sky, especially in polar regions, caused by the collision of charged solar particles with Earth's magnetic field.

   الشفق القطبي

   • The aurora borealis lit up the Arctic sky with green and purple ribbons.
   • Tourists travel to Norway to witness the aurora.
   • Scientists study the aurora to understand solar activity.

   المرادفاتnorthern lightssouthern lights