NASA says that small space rocks hit Earth every day. The larger the rock, though, the less often Earth is struck. Many kilograms of space dust pitter to Earth daily. (Pixabay)

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Hubble Space Telescope snaps asteroids out in space (Pixabay)

In the featured image, one such asteroid -- shown by the long blue streak -- was found by chance in 1998 by the Hubble Space Telescope, NASA revealed. (NASA, ESA, Hubble; R. Evans & K. Stapelfeldt (JPL))

A collision with a massive asteroid, over 1 km across, is more rare, occurring typically millions of years apart, but could have truly global consequences. (Pixabay)

Larger bits appear initially as a bright meteor. Baseball-sized rocks and ice-balls streak through our atmosphere daily, most evaporating quickly to nothing as they enter Earth's atmosphere. (Pixabay)

An object this size could cause significant tsunamis were it to strike an ocean, potentially devastating even distant shores. (Pixabay)

Worryingly, many asteroids remain undiscovered by space agencies. (Pixabay)

A collision with a large asteroid would raise dust that would affect Earth's climate. (Pixabay)

However, asteroids of around 100 meters in diameter pose serious danger to earth. These strike the Earth roughly every 1000 years. (Pixabay)

One likely result is a global extinction of many species of life. (Pixabay)

However, this asteroid strike would not affect Earth's orbit. (Pixabay)