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Comets May 3 2011
Description
Comets are small, frozen bodies composed of ice, dust, and rock, serving as ancient remnants from the formation of the solar system. As a comet approaches the sun, it heats up and releases gases and dust, creating a glowing coma and a magnificent long tail that always points away from the sun. The study of comets helps scientists understand the conditions that prevailed during the earliest days of our solar system.
Original title
כוכבי שביט (3 במאי 2011)
כוכבי השביט הם גופים קפואים קטנים המורכבים מקרח, אבק וסלעים, ומהווים שרידים קדומים מהיווצרות מערכת השמש. כאשר שביט מתקרב לשמש, הוא מתחמם ופולט גזים ואבק היוצרים הילה וזנב ארוך ומרהיב הפונה תמיד הרחק מהשמש. חקירת השביטים מסייעת למדענים להבין את התנאים ששררו בראשית ימיה של מערכת השמש שלנו.
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