To the sun, the Earth is a tiny speck: its diameter is less than 0.01% of the Earth-sun distance.
CNN: The sun, the moon and the Titanic
Now only visible with the largest ground-based telescopes or from space, 1999 RQ36 currently lies about one earth-sun distance away.
FORBES: New Observations Signal NASA Mission's Target Asteroid Is Sample-Friendly Rubble Pile
In 1989, Pluto was as close to the Sun as it gets during its long year - less than 30 astronomical units (AU), or 30 times the distance between Earth and the Sun.
BBC: Scientists plan Pluto flyby
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