Among the millions black holes in the Milky Way Galaxy are massive black holes with the greatest potential for destruction.
Scientists use Stephen Hawking's theory about the decay of black holes to determine when all matter and energy in the universe will finally dissipate.
Pete Conrad and Alan Bean make humanity's second trip to the moon and return with rocks holding valuable scientific secrets.
Astronomers study stars and ultra-dense objects near the centre of the Milky Way Galaxy to learn more about the black hole at its heart.
Exploring Venus' history and how it diverged from Earth in its formative years to become a hot, acidic, lifeless world.
A run-down of increasingly powerful energy events from frigid clouds of gas to the hottest places in the universe and powerful black holes.
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