There’s a big mystery under the Antarctic ice:
Scientists believe a massive object that could change our understanding of history is hidden beneath the Antarctic ice.
The huge and mysterious “anomaly” is thought to be lurking beneath the frozen wastes of an area called Wilkes Land. The area is 151 miles across and has a minimum depth of about 2,700 feet.
Some researchers believe it is the remains of a truly massive asteroid more than twice the size of the Chicxulub space rock that wiped out the dinosaurs.
If this explanation is true, it could mean this killer asteroid caused the Permian-Triassic extinction event, which killed 96 percent of Earth’s sea creatures and up to 70 percent of the vertebrate organisms living on land.
That would be news, wouldn’t it? Even though it would have happened about 252 million years ago.
That extinction event is also called “The Great Dying”:
…[The event occurred] between the Permian and Triassic geologic periods, as well as the Paleozoic and Mesozoic eras. It is the Earth’s most severe known extinction event…It is the only known mass extinction of insects. Some 57% of all families and 83% of all genera became extinct. Because so much biodiversity was lost, the recovery of life on Earth took significantly longer than after any other extinction event, possibly up to 10 million years.
There is evidence for one to three distinct pulses, or phases, of extinction. Suggested mechanisms for the latter include one or more large bolide impact events, massive volcanism, coal or gas fires and explosions from the Siberian Traps, and a runaway greenhouse effect triggered by sudden release of methane from the sea floor due to methane clathrate dissociation or methane-producing microbes known as methanogens; possible contributing gradual changes include sea-level change, increasing anoxia, increasing aridity, and a shift in ocean circulation driven by climate change.
In other words, we don’t know. A fascinating topic, though.
One thing we do know is that it wasn’t caused by humans.
[NOTE: I call your attention to a poem I knew and loved as a child:
By Langdon Smith (1858-1908)
When you were a tadpole and I was a fish
In the Paleozoic time,
And side by side on the ebbing tide
We sprawled through the ooze and slime,
Or skittered with many a caudal flip
Through the depths of the Cambrian fen,
My heart was rife with the joy of life,
For I loved you even then.
Mindless we lived and mindless we loved
And mindless at last we died;
And deep in the rift of the Caradoc drift
We slumbered side by side.
The world turned on in the lathe of time,
The hot lands heaved amain,
Till we caught our breath from the womb of death
And crept into life again…
You can find the entire poem at the link.]