Is the premeditated, politically motivated attacks against information, computer systems, computer programs, and data which result in violence against noncombatant targets by subnational groups or clandestine agents.

Cyber-terrorism is the premeditated, politically motivated attack against information, computer systems, computer programs and data which result in violence against non-combatant targets by sub-national group or clandestine agents. A good example of cyber-terrorism is the July 2009 cyber attack in USA in which there was a series of coordinated attacks against major government websites, financial websites and news agencies.

Asolar eclipse occurs when the moon gets between earth and the sun, and the moon casts a shadow over earth. a solar eclipse can only take place at the phase of new moon, when the moon passes directly between the sun and earth and its shadows fall upon earth's surface.