A star-forming region in the Large Magellanic Cloud, an irregular galaxy. Astronomy (from Greek: á¼ÏÏÏÎ¿Î½Î¿Î¼Î¯Î±) is a natural science that studies celestial objects and phenomena. It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects and phenomena and their evolution.
2015-02-25T12:30:07-05:00. A former pro-US leader in Iran was Shah Mohammed Reza Pahlavi. HIs regime was overthrown in 1979 by the Islamic Revolution and Ayatollah Khomeini came to power. Comments
Quick Answer. The Iran hostage crisis occurred when Mohammed Reza Pahlavi, a domineering Iranian ruler who was recently expelled from his country, was granted access into the United States by President Jimmy Carter to receive cancer treatment.