Hey YouTube, Jim here!
Welcome to Top10Archive!
Just because scientists can see, observe, and study something doesn't mean they're able
to fully explain it.
In this Archive, we're going to explore ten things that exist - though we can't figure
out how or why they do.
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10.
Why Do We Dream?
Have you ever woken up from a horrific dream and wondered why your brain did that to you?
Well, nobody has an answer, really.
We know that we do dream, but scientists aren't sure why we do.
Theories are thrown around involving forms of memory processing that consolidates short-term
to long-term memories, an extension of waking consciousness, the brain's response to biochemical
and electrical changes that occur during sleep, and the brain's means of preparing for threatening
events and dangers.
Have fun pondering over those concepts the next time you're lying awake, waiting for
sleep to take you.
9.
The Mars Hole We know that the surface of Mars is a cratered
mess, but there's a feature that was discovered in 2017 near the planet's South Pole that
has left NASA scientists perplexed.
Amidst the expected planet-wide pockmarks is a pit that's quite a bit deeper than expected.
Though it's known that meteorite impacts have altered Mars' terrain, there's no indication
of what caused the deep pit.
Imaging of the odd feature has shown that ice does form at its base, but that doesn't
help determine what caused the near 1,000-foot hole.
For now, it remains one of the many mysteries of space.
8.
The Tully Fish Look at this ugly thing.
It looks like something you'd create in Spore.
Nobody?
Eh, moving on.
The Tully Fish was an ancient sea creature that created a series of debates among scientists,
one that was thought to have ended in 2017 when it was classified as a vertebrate.
Unhappy with that answer, however, another group of researchers have stepped in to say
the aquatic creature could not have been a fish.
And so, we're back at square one.
There is only one species of Tully Fish, the T. gregarium, and the only fossils to be discovered
were in the Mazon Creek fossil beds of Illinois.
While scientists are still going back and forth, I'm sticking with Spore.
Okay, fine.
Nobody plays that anymore.
7.
Humpback Super-Groups The first important question to answer is
"what is a humpback supergroup."
In short, it's a large group of humpbacks, as many as 200, observed together in one location.
Fairly simple answer, but that doesn't answer the pressing question that remains - why are
they grouping together in regions they otherwise wouldn't?
According to a paper published in the journal Plos One, why the supergroups are forming
"remains speculative," but one of the more popular answers deals with a changing ecosystem
that's dwindling the presence of humpback prey.
A far less exciting reason is that this isn't really new behavior - we just haven't observed
it yet.
6.
The Great Pyramid of Giza Cavities In 2016, the ScanPyramids project, which scanned
the interiors of the Old Kingdom pyramids of Egypt using various technologies, uncovered
two unknown cavities in the Great Pyramid of Giza.
The team of researchers from Cairo University's Faculty of Engineering and a Paris-based non-profit
known as Heritage Innovation and Preservation, discovered one cavity 345-feet from the ground
on the northeastern edge of the pyramid and a second "void" located on the northern side
by the upper part of the entrance gate.
Further research provided them a 3D scan of the cavities for further study, but there
is still no answers as to what they were used for.
5.
Earthquake Booms We've covered them in prior Archives, the
unmistakable boom that sometimes happens before an earthquake hits.
They're nothing new and there are plenty of videos online about them, but why do they
occur?
According to the United States Geological Survey, these naturally occurring booms are
a mystery, but scientists predict they may be connected to shallow earthquakes that aren't
recorded by seismographs.
Whatever their cause, they are haunting noises that sound more like a signal of the apocalypse.
4.
Blood Types Why we have different blood types is a question
that probably hasn't crossed your mind yet.
We just kind of accept it.
In 1900, Karl Landsteiner first discovered blood types and, since then, it's been a battle
to uncover everything about them.
As University of California biologist Ajit Varki puts it, "We still don't know exactly
what they're for."
One proposed reason for their existence relates to diseases, specifically the prevalence of
Type O blood in regions with high cases of malaria.
Based on this research, it's believed that blood type was an evolutionary advantage intended
to ward off diseases as malaria has a hard time infected Type O blood cells.
It's not a definitive answer, however, and the question remains.
3.
The Space Roar In 2009, NASA's Goddard Space Flight Center
sent the Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE)
into space in search of radiation from the universe's earliest stars.
What it wound up picking up, however, was a large amount of radio noise that's become
known as the "space roar."
At six times louder than what scientists expected, the "space roar" is an anomaly, with several
theories in place to try and explain it.
Some scientists think it's a remnant from the earliest stars while others believe it's
coming from gases in large galaxy clusters.
Unfortunately, nobody thinks that it's aliens.
2.
Star Jelly On multiple occasions around the globe, gelatinous
blobs have been reported falling from the sky.
In Texas, Scotland, the United Kingdom - it's a worldwide occurrence that nobody can quite
get a grasp on.
Though scientists have studied samples of the jelly, they're unable to determine its
precise origin.
In the 18th century, Thomas Pennant believed it to be a material "vomited up by birds or
animals," such as frog spawn that amphibian-eating avian are gobbling up and regurgitating.
Problem is, the jelly is quite large for frog spawn.
The National Geographic Society even commissioned scientists to perform tests, but no traces
of DNA were found.
1.
The Light of KIC 8462852 Also known as Tabby's Star or Boyajian's Star,
the F-type main-sequence star in the Cygnus constellation, more than 1,470 light-years
away from Earth, has an unusual trait that researchers can't quite pin down.
At certain points in time, light from the star fluctuates, sometimes up to 22% dimmer,
and nobody really knows why.
There are several theories, including a circumstellar dust ring, a planetary debris field, a nearby
planet with oscillating rings, and the star's consumption of a planet; but our favorite
is the hypothesis of an artificial megastructure.
Maybe it's not the most popular theory - but it's definitely the most fun.
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