The orbits of the over 1,000 known Potentially Hazardous Asteroids (PHAs).
Although none of them will strike the Earth in the next 100 years, not all PHAs have been discovered, and past 100 years, many orbits become hard to predict. Of course rocks and ice bits of much smaller size strike the Earth every day, usually pose no danger, and sometimes creating memorable fireball and meteor displays. (Source)

The orbits of the over 1,000 known Potentially Hazardous Asteroids (PHAs).

Although none of them will strike the Earth in the next 100 years, not all PHAs have been discovered, and past 100 years, many orbits become hard to predict. Of course rocks and ice bits of much smaller size strike the Earth every day, usually pose no danger, and sometimes creating memorable fireball and meteor displays. (Source)

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