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Black Holes
Description
Black holes are celestial bodies with gravity so immense that nothing can escape them, not even light. They are formed when massive stars collapse into themselves at the end of their life cycles, compressing a colossal amount of mass into zero volume. Surrounding the black hole is the "event horizon," a boundary beyond which the laws of physics as we know them change beyond all recognition.
Original title
חורים שחורים
חורים שחורים הם גרמי שמיים בעלי כבידה כה חזקה, שדבר אינו יכול להימלט מהם, אפילו לא אור. הם נוצרים כשכוכבים מסיביים קורסים לתוך עצמם בסיום חייהם ודוחסים מסה אדירה לנפח אפסי. סביב החור השחור נמצא "אופק האירועים", הגבול שממנו והלאה חוקי הפיזיקה המוכרים לנו משתנים לבלי היכר.
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