5 of the Most Mysterious Objects in the Solar System

The darkness of space is filled with many mysteries and mysterious objects.

Here are 5 of the most mysterious objects that have been found in our solar system.

They include:

  1. Promising comet ISON gives perplexing performance en route to the Sun
  2. The mysterious Black Knight Satellite
  3. NASA—Suspected asteroid collision leaves odd X-pattern of trailing debris
  4. SETA & 1991 VG research [PDF]
  5. Planet X? New evidence of an unseen planet at the solar system’s edge

Many astronauts and cosmonauts saw objects they could not identify from their space capsules, which is the very definition of UFO.

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