Science fiction has long imagined alien worlds inhabited by silicon-based life, such as the rock-eating Horta from the original Star Trek series.
READ MOREThe ‘UFO’ seems to float in one spot on the edge of the storm cloud for about three minutes and then simply vanishes.
READ MOREA strange tiny UFO was caught on the sights of a drone camera as it speeds off out of sight.
READ MOREEarth’s radiation belts, two doughnut-shaped regions of charged particles encircling our planet, were discovered more than 50 years ago, but their behavior is still not completely understood.
READ MOREMakemake, the second brightest dwarf planet in the Kuiper belt, has a moon that will help NASA tell more about it.
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