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It's a bird it's a plane
It's a meteor we're training our eyes on
the sky this friday on CNN 10.
I'm Carl Azuz here's what's up this week
there were more than 400 reports of fire
in the sky
they were mostly concentrated in and
around alberta canada
though the meteor was also visible in
other parts of that country and in the
u.s state of montana
thanks in large part to surveillance and
doorbell cameras the american meteor
society received more than 100 videos of
this
the thing was so bright it was
classified as a fireball
according to nasa that means the rock
could have been bigger than three feet
in diameter
it's a shocking celestial sight that
looks really cool as long as it doesn't
hurt anything
and as far as we know it didn't
scientists believe it was just a meteor
not a meteorite what's the difference
there are a lot of small rocks that are
zinging through space they're called
meteoroids
if one of these rocks hits the earth's
atmosphere it becomes a meteor that's
also known as a shooting star
the streaks you see across the sky are
the result of meteors burning up in our
atmosphere
researchers say more than 90 percent of
them burn up completely
if they don't do that though if part of
the rock survives its entry and smacks
into the earth's surface
it's then classified as a meteorite
thousands of tiny meteorites strike the
earth every year
but as far as we know the one scene this
week in canada wasn't one of them it's
believed to have been a meteor
there haven't been any fragments
reported from the earth's surface
initially scientists didn't know how big
it was how fast it was moving and what
it was made of
but they're able to piece together some
information about it based on the
multitude of different recordings
taken from different cameras in
different locations
10 second trivia today how many cities
have hosted both the summer
and winter olympic games 5 3
1 or none
no single city has hosted both seasonal
olympics before
but beijing china is set to become the
first next year
the chinese capital hosted the olympic
summer games in 2008
it's set to host the 2022 winter
olympics next february 4th
looking ahead the events will return to
paris france in 2024
milano cortina italy in 2026 los
angeles california in 2028 and the
international olympics committee just
announced yesterday that brisbane
australia
is the preferred host for the 2032
summer olympics this is a new process
for olympic organizers they haven't
announced the venue for the 2030 winter
games yet
and brisbane's bid to host the 2032
games isn't a done deal
the ioc still has to vote on this to
make it final
but because hosting the olympics takes
years to plan for
and because of the uncertainty that
still surrounds the 2020 games
which were delayed by the coronavirus
pandemic the committee's trying to
devise a stable and predictable way to
determine future host cities
in another sign that the olympic and
paralympic games will likely take place
this summer
on thursday tokyo 2020 organizers laid
out their plan
for the torch relay starting in exactly
one month the torch will begin its 121
day
journey in fukushima before making its
way through all of japan's prefectures
fukushima was one of the hardest hit
areas during the 2011
great tohoku earthquake and tsunami
which caused a nuclear meltdown
starting the relay in the region allows
japan the opportunity to highlight the
reconstruction
and recovery effort that has taken place
since the devastating day nearly 10
years ago
now ten thousand torchbearers will take
part in the relay
and perhaps a sign of things to come
during the olympic and paralympic games
summer mast spectators will be allowed
to line the relay route but have been
asked not to cheer and instead to show
support
by clapping officials have also asked
spectators to avoid contact with people
close spaces in crowded areas temporary
suspensions of the relay could take
placeif a large crowd forms now the format of
the relay could also change
depending on covet 19 restrictions in
each prefecture
blake essig cnn tokyo
next story is about eurasian beavers on
the river otter
let's explain the otter is the name of a
river in devon
england these wild eurasian beavers are
some of the first to live there in about
400 years
these animals were hunted to near
extinction before the 20th century
in part because they were prized for
their fur used in felt hats
but conservation efforts have helped the
species recover even though their
relationship with people still isn't
perfect
what people didn't realize is how
important beavers are to the landscape
the dams they build regulate water flow
increase biodiversity
and even drive down pollution in short
beavers are what are known as ecosystem
engineers
beavers build dams and canals for their
own protection the dams raise the
surrounding water
which helps them escape from predators
but wetting the landscape has a greater
impact
it also slows the water flow reducing
floods downstream in the wet season
and drought in the dry season experts
warn that areas like devon are expected
to see more flooding
but a recent study on beavers in england
showed that their dams can reduce
average flood waters by up to 60 percent
the organization behind reintroducing
beavers to devon
is the devon wildlife trust but before
they released any beavers into the wild
ecologists ran a trial and how beavers
might change the landscape
so this is a three hectare enclosure
that was built in 2010
what can you see that's right that's the
dam there that goes all the way across
so it's about
40 meters long when we put them in here
and started to see what they did to the
watercourse
it was really profound you know we all
suddenly became
much more conscious of just how powerful
this animal was
the trust received permission to release
beavers into the wild in 2015.
it was the first license in england to
do so and the effect on the river otter
basin was
dramatic this pond has been created by
the beavers so they've built a small dam
that has increased the water level in
this area
that's enabled them to build a lodge on
this island
beaver lodge is the home of beavers the
entrance to the lodge is
underwater and right now we've probably
got the adult pair
in this island along with kits from this
summer
and the previous summer so there might
be eight beavers in that lodge right now
there's also been a huge increase in
biodiversity as the wetland habitat
attracts water voles
otters amphibians and bird life
but beavers can cause trouble for one
they're big
beavers like pink tag can weigh up to 30
kilograms or 66 pounds
that's quite a big dog we've had
fishermen telling us stories that
they've been a bit scared whilst fishing
close to beavers
they also can water log farmland and eat
orchard trees so a big part of
chantinellia's job
is working with local landowners to make
sure everyone is happy
but overall beavers are a huge benefit
to ecosystems and society
nations across europe are working to
restore them to their original range
it's been a hugely successful
conservation story beavers were reduced
to around 1200 back in the 1920s and now
there are over a million beavers within
europe
we've heard of the eye of the tiger the
roar of the tiger paper tigers and
a neon tiger but this is the first time
we've heard of a
singing tiger
fascinating let's hear more
i think we need to work on your pitch
has cat got your tongue well i think you
can advance but you'll be working with
lionel richie
so this is what's being called a singing
tiger he's an eight-month-old male cub
at a siberian zoo
who's able to hit high notes that other
tigers can't
officials say he's not in pain this is
just what he does to get attention
tiger tiger burning bright in the music
calls of night it's not in roars that
you delight or persian furs that others
might
you're a cat of different stripes
hitting high notes with your pipes
on the prowling cajun meadow from the
pitch of your falsetto you're a rebel
without cause
lifting voice through open jaws singing
not just for applause but just because
you can
entertaining beast and man apologies to
william blake
shout out to waterville senior high
school in waterville maine
what do you think of fridays they're
awesome I'm Carl Azuz for CNN