Jared talks 2024 YR4 Asteroid and its increasing chance of hitting Earth

TMRO Space News
221 followers
88 Video Views·Feb 13, 2025
In our last live show Jared Head took a moment to talk about asteroid 2024 YR4. In the week prior it had a 1.4% chance of hitting Earth. As telescopes focused on it and we ran new numbers it jumped up to 2.8% before dropping back down a bit.
In this live show snippet Jared talks about what this could mean for Earth, the actual chances of an impact, the ways we can track this and all the latest info we have on the asteroid itself.
If you would like to see the whole live episode where this aired you can check that out here: https://www.youtube.com/watch?v=raLyTOo9jT8
2024 yr4 is a asteroid that was
discovered in late December of last year
it's somewhere on the order we think
it's probably about 50 to 60 Metter
across it is a asteroid that has the
potential for hitting the Earth we're
keeping a very close eye on it because
right now we have so little observation
data of it that we cannot remove Earth
from the area of uncertainty or
basically the big space where we expect
the asteroid to travel through as it
goes by the Earth in December of 2032 so
we've got eight uh eight is less than
eight years now to kind of look at and
gather what we can about this asteroid
and see what we can do so back last
Sunday the chance at that time the
probability was 1 in 71 or 1.4%
throughout the week it has actually
increased which is I don't want to say
like unexpected but also like huh look
at that there there it goes up um
yesterday it was at its peak which was
one in 42 chance or a 2.4 ch% chance of
hitting the Earth today it's dropped
just a little bit but it's still
elevated compared to where it was for
our last show today it's a 1 and 145
chance which is
2.2% so we're I guess we're up almost a
full perc % on on where we were last
week but it's it's important to remember
that we still have observations to do so
at the moment we cannot obviously so we
can't really rule out an impact event at
the moment there's still enough time
that we can like figure this out and
have the time to maybe build a deflector
if need be basically build a dark
Mission and hit it really hard
with enough time out so we're just going
to we're going to kind of have to do
this the really big issue with it is
that this is not a big asteroid and
asteroids are really dark if you go out
and you look at like the tarmac of the
road imagine something that's four to
five times darker than that and that's
what we're trying to look at from
millions of kilometers away
so yeah this is uh this is this is
really tough we're really only we really
we have about 6 to 8 weeks left for
observations even with the biggest
telescopes here on Earth and even then
we're still having issues seeing it
because of how far away it is how small
and how dark it is because that's just
the nature of asteroids they're dark by
the way just to let everybody know this
is not to scale oh my God it's totally
to scale look at that that's an
Extinction that's a planet hitting our
planet that would that would blow the
crust off and all the way down to the
that that would destroy the Earth even
before impact just the gravitational
field ripping us apart it just would end
well yeah this is not that's bigger than
our moon have a pre the ring system of
our oceans first by the way um this this
actually I I don't know where this
simulation came from but this actually
is pretty close um to the the actual
areas it would impact on the earth we're
talking going all the way to the West
through uh the Middle East through
Africa into the Atlantic Ocean just off
of South America there that's your
potential impact area here on the earth
and just to just to emphasize this this
is about 60 we think it's about 60
meters if it were to hit this is what we
call a city killer so basically anything
within a 50 kilometer radius would be
obliterated by it and if it were to land
in the ocean it's actually not big
enough to generate a tsunami of of
substantial size obviously it would
still make you know waves that would be
a couple meters in height either at at
both the Western shores of South America
or the Eastern shores of South America
and the Western shores of Africa but it
wouldn't be something that would if it
were to hit in the middle of nowhere it
wouldn't like it like this is not going
to end all life on Earth or this isn't
going to cause a nuclear winter or
anything like that but obviously still
we don't want this to hit we want to
prevent it from hitting the Earth if we
can because one that's just a good it's
just good to do that right this would be
a really great way to test out the
technology and our ability to respond to
it and we actually already are you know
we have this thing called the Torino
scale which is what we use to measure
the sort of Threat Level of near Earth
asteroids and potentially hazardous
objects we're we're at Torino level
three with this object which basically
means hey astronomical Community we we
have something on our hands and we need
to take a a look at this so right now
every telescope that we can use is
dedicating their free time to trying to
observe this asteroid so that way we can
get a better idea with it in a couple
months it's going to be positioned well
enough that we should be able to use
jdub to take a look at it as well and
get more information out of it and get
better positional data with it as well
but even then there's still
that's probably going to be a
significant enough margin for error that
you need to kind of figure it out and
2028 is when it comes by again when it
comes by again in 2028 it's going to be
you know several million kilometers away
so it's not a very close pass like this
year was so it's not really going to
help us out yeah this this is this is an
interesting situation that's happening
right now it's definitely not don't
don't panic but do know that the right
people at the right places are doing all
the right things to try to figure out
what they need to do next can we send up
a giant parachute just like a solar sale
to slow it down uh so that doesn't work
also something that won't work um as
well uh Sharpies you can't put a sharpy
and draw where you want it to actually
be at for it to work um with it oh Dy
you said solar seale I'm sorry I heard
Parish did you say parachute or solar
sale I said both both okay so parachute
not going to work right cuz like air and
everything but a solar sale if you got
it up there with enough time yeah you
very well could but at the same time
like that solar sale would probably have
need to have been on there like now
something else I find really interesting
about this one in particular is there's
only one other object that has been this
risky uh since we've been tracking this
stuff apus APO yeah apus hit actually
level four on the Areno scale before
which was basically like hey we need to
really take a look at this but it was
only that way for a couple of days
before it dropped back down it was so
far and that was the risk of it hitting
in 2029 there's still a risk that it
could hit you know farther in the future
but not as big of a risk as they thought
for those couple of days yeah I think
it's in like the 22nd century when they
think that it got risk of hitting or
something so we'll let Starfleet deal
with that we're going to you know keep
an eye on it and try to figure it out
and see what we need do but also I I am
fairly confident that they'll be able to
figure uh figure it out so I mean that's
it's what they do we know from Dart that
a kinetic impactor will work like we did
that with dart Dart was supposed to
change the orbit of dioros the the moon
of didos that we hit by like 30 seconds
like that was the target goal and they
did it by something like half an hour in
that in that impact so we know that that
not only does the kinetic impactor work
it works really really well so we'll
have to see and just just to let you
know about how like confident we are
that something like Dart would work this
asteroid 2024 yr4 is smaller than diddos
was or is like we didn't blow up diddos
it's still there uh right or no excuse
me dioros so we think that with like a
kinetic impactor like Dart we would
actually be able to hit it even harder
and and move it with even more velocity
at that point but there's also something
that comes with that too that I was
actually talking with about someone at
Griffith yesterday which is that you got
to make sure that you hit it in a way
that is sort of like politically okay
because you don't want to knock it in a
way that causes it to that like you can
knock it and you can make sure that it
doesn't that it ends up missing the
Earth like hit it with enough that it
really does hit the Earth but like what
if it what if that imp that line of
potential impact has to go through China
and then through Russia before it
finally is like off of the surface of
the Earth or what if you have to send it
like down through Australia or something
like that like do we have to ask the
permission of these countries to be able
to do something like that we were like
huh like politically you have to think
about that too this is going to be an
interesting couple of years if we can
going to be fun to see the uh the space
race and we have five different probes
from different
nations yeah and then also like you know
like what a great what a what a great
start to a Sci-Fi story you know the
this Rogue Nation decides to knock an
asteroid in the wrong direction after
it's already been knocked to you know
try and steer it towards their enemy or
something you know like that that would
be pretty funny so EA asks is is this a
hard rock uh Hard Rock Hard Solid Rock
or block of metal it spins too fast to
be a rubble pile so that's a great
question ea uh it is too small for us to
determine whether it's a solid object or
a rubble pile but you did bring up the
fact that it does spin fast it is it is
a fast what we call a fast Rotator which
means that it rotates very fast it
literally goes around once every I
believe it's 19 and a half minutes which
is really fast for an asteroid so most
of them take you several days if not at
least a vast majority of the day for it
to go around so we'll have to we'll have
to see jdub may be able to to look at it
and figure that out but right now we
don't know just because of the fact that
it's outbound and it's tiny and it's
really tough to tell we we do know that
looking at the way the light curve is or
basically how much light we see coming
from it as it's rotating we do have a a
solid guess that it is actually
elongated so that it's not like a
spherical shape it's actually maybe like
a like sort of like a baguette or
something like that that's really the
only shape I could think of to describe
it as but again uh the really the only
ways to do this are to get radar info on
it so basically aim a big radio
telescope at it blast it with some radio
waves and get that back like radar or
fly a spacecraft out directly to it and
as as I was told by a cooworker
yesterday the only time that it's going
to get close enough to get radar data
from it will be when it is inbound in
2032 so basically when it's you know
would it would be months away from
Impact or basically too late if you want
to fly something direct with it then you
know you gotta you got to launch that to
actually go get it and I I mean I think
we could do it if we really wanted to
that that requires the the political
will to pull that off so so airbo was
pretty big right it was it was what 1,00
feet across and then fast uh which is in
China their massive radio telescope that
they have those are still not big enough
because of the fact that this is such a
small object this is 60 meters this is
not big you know this is not this not
even the size of a of a soccer field or
excuse me football pitch this is really
tough to find so yeah we got to we got
to there's a lot of work that needs to
be done that's why everybody who can is
doing the work right now to try to knock
everything down as best we can and I
will say that that people have already
put in papers or excuse me proposals and
have had them approved four time on jdb
so it's not like oh we might point jdb
at it and and see what we can get no
like that time has been set aside and we
are going to do observation of it so
that that will tell hopefully give us
better idea as to what it's made out of
better idea as to what shape it is
better idea as its size and better idea
of its position as well that will really
help out so probably going to have to
wait until later this year for the
statistics to get a bit better
