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Dark Matter (May 3, 2010)
Description
Dark matter is a mysterious component of the universe that does not emit, absorb, or reflect light, making it impossible to observe directly with telescopes. Its existence is inferred from its gravitational effects on the movement of galaxies and galaxy clusters throughout space. Understanding the true nature of dark matter remains one of the greatest challenges in modern physics and astronomy today.
Original title
חומר אפל (3.5.2010)
חומר אפל הוא מרכיב מסתורי ביקום שאינו פולט, סופג או מחזיר אור, ולכן לא ניתן לצפות בו ישירות באמצעות טלסקופים. קיומו מוסק מהשפעותיו הגרביטציונית על התנועה של גלקסיות וצבירי גלקסיות במרחב. הבנת מהותו של החומר האפל היא אחד האתגרים הגדולים ביותר בפיזיקה ובאסטרונומיה המודרנית כיום.
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