What happened to the Lunar Gateway project? Is China catching up to NASA in space? Will Vera Rubin find new Earth-threatening asteroids? And in Q&A+, which missions can we expect from the Canadian Space Agency?
00:00 Start 00:26 [DJ UnclePhill] Is the Lunar Gateway still happening? 06:07 [Santiago T] How do we know 3I/ATLAS is interstellar? 08:18 [IARRCSim] Is China catching NASA in space? 13:16 [Silas Miller] Will Vera Rubin find new Earth-colliding asteroids?
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What happened to the lunar gateway
project? Is China catching up to NASA in
space? Will Ver Rubin find new
earththreatening asteroids? And in Q&A
plus, which missions can we expect from
the Canadian Space Agency? All this and
more in this question show. It's time
for the question show. Your questions,
my answers as always, wherever you are
across my channel. If a question pops in
your brain, just write it down. I'll
gather them up and I will answer them
here. All right, let's get into the
questions. Dr. or Uncle Phil, is the
lunar gateway still a mission? That is a
great question and we don't know right
now. So, I need to sort of walk through
alternative timelines. I need to walk
the multiverse here to be able to figure
out what's the state of the lunar
gateway. So, lunar gateway is going to
be the next big project that NASA is
going to be undertaking as part of the
Aremis mission. So Artemis 1, 2, and 3
are going to return humans to the moon
by Artemis 3. But then Artemis 4 was
going to begin the construction of the
lunar gateway. And there's about five
chunks of the lunar gateway that are
going to be coming together, different
modules, and those modules are already
in varying levels of completion. Some
are already pretty much ready to go and
in the testing stages, others are are
quite a ways away. And the goal with the
lunar gateway is that you put this space
station into a halo orbit
around the moon, a high altitude lunar
orbit. And so it's going to maintain
this orbit around the moon that puts it
sort of in view of the earth at all
times and yet occasionally brings it
close to the moon so that they can then
make landing attempts on the moon. And
so the way this will work is that you
will launch astronauts from Earth.
They'll fly to the lunar gateway.
They'll dock with the lunar gateway.
They'll switch to their landing system
and either that'll be like a onepart
lunar lander or maybe there'll be some
kind of ferry system. So it takes them
close to the moon and then it detaches
and comes back to the lunar gateway and
then they go down to the lunar surface
and then they come back from the lunar
surface and they meet with the ferry and
it brings them back. And so every chunk
of this process is going to be reusable.
You'll probably have a reusable rocket
that's taking you to the lunar gateway.
You'll have a reusable ferry that's
taking you to and from the moon, landing
system, all of this will be reusable and
eventually you'll just be refueling all
of the parts of your of your mission. So
that's the goal and that's why they're
trying to do it because, you know, back
in the Apollo era, you just had
footprints on the moon. You had people
go land on the moon and then they didn't
go back for 50 years. And so it' be
great if there was now this ongoing
sustainable exploration, lunar base,
mining for water, learning to live in
the lunar environment. eventually we get
some larger station on the moon. And so
until
this year, this was the plan. The fourth
Artemis would launch the beginning part
of the lunar gateway and then they could
start using it for future human landings
on the moon and they would just keep
building it out until it was a a safe
harbor on the way to the moon. So, uh,
the White House put in their budgetary
request, uh, a few months ago, and they
slashed a lot of the budget of NASA.
They cut it by about 25%. They wanted to
cut about 40 missions from NASA. Either
missions that were already operational
like Juno, New Horizons, as well as
missions that are in development, Nancy
Grace Roman, as well as missions that
are sort of in the planning stages right
now like the Mars sample return mission
and things like that. So they put in
that budget request and and that
included cancelling the lunar gateway as
well as sort of scaling back parts of
Artemis while growing other parts of
Artemis and trying to accelerate the
exploration towards Mars. Um and then
Congress pushed back against the budget
that had been put together by the White
House and wanted to have pretty much the
exact same funding. and for most of the
missions that were going on with NASA to
be sort of continued. And that was so
that was a relief because it meant that
we were going to get the lunar gateway.
We were going to not get a cancellations
of all of these missions. And then the
government shutdown happened. And so
where we are now today, the time that
I'm recording this, we are 20 days into
the government shutdown. And a lot of
the cuts and changes that the White
House wanted to make are just kind of
happening by default. So, uh, like 10%
of the workforce at NASA JPL has has
been let go. Um, you're seeing a lot of
missions that are being shut down right
now. And depending on how long the
shutdown lasts,
we don't know sort of what the results
are going to be. In the best case
scenario, the shutdown ends. There's a
compromise. People come back. It follows
the Congress funding. There's smaller
teams because people have left, but
they're able to put it all together and
hire new people and continue on. Worst
case scenario, the shutdown lasts for
months. People have to go get new jobs.
The brain drain is sort of decays huge
chunks of NASA expertise and NASA is a
shattered version of what it was before.
So, so right now the time that I'm
recording this, there's there's so much
uncertainty, which has just been the
case for the entire year. There's just
been so much uncertainty, and that's
just going to continue. We're going to
just get unc certainty on top of
uncertainty on top of uncertainty. And
I'm sure for certain kinds of fields,
that's super fun. Everyone loves
uncertainty. But for long-term
sustained exploration, science projects,
things that require slow and steady
achievement towards the goals, that's
anathema. That is uh very very bad. And
so I think right now, unfortunately, um
sort of US space exploration, space
science is in shambles. And we're going
to have to sort of wait and see what's
going to happen and whether all these
pieces can be put back together again.
Santiago T. Is it possible that three
Atlas came from the or cloud and not
another star system? How are we so sure
is an interstellar object? So objects
falling from the or cloud follow a uh
elliptical orbit. So they are following
this giant ellipse where they go around
the sun and they go back out into the or
cloud and then theoretically they do the
same thing. And all you have to do is
calculate the shape of the trajectory by
the comet and you can tell whether or
not it's going to be captured by the
solar system or not. While the
interstellar objects are following a
hyperbolic orbit. So they brought them
in from outside the solar system and
they're going to continue on an escape
trajectory out of the solar system.
Right now uh 3 atlas is going 58
kilometers/s
and so that is much beyond well beyond
the escape velocity of the sun. And so
uh we know that it's going to pass
through and then just keep going. And
it's going very fast like it's going
faster than Borosov or Omu. and you just
calculate the orbit and you know and so
if it is on an escape trajectory back
out of the solar system it'd be very
weird that it um well so like think of a
swing right you take a swing and you
take it back to your face and then you
let go and the swing goes all the way
out then it comes all the way back and
then it just stops right at your face
and doesn't touch you and then goes all
the way back and then all the way back.
Right? It can't go faster than just
coming back to where its starting point
was. And so any comet that is dropping
down from the or cloud can't go any
farther than where it started. But the
interstellar objects there, they could
go much much faster because they started
with a velocity that is moving them
outside of the solar system. It's time
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today. ISIM, how much is China's space
program creating a feeling of
competition with NASA. NASA seems far
ahead of China, but is the feeling that
China could catch up with NASA helping
it get more funding? So, right now, NASA
is
very much ahead of China. um in terms of
technology, in terms of knowledge, in
terms of missions, right? There are
multiple space telescopes operated by
NASA, they're building a giant moon
rocket. There's like a lot of technology
that NASA has worked on and a lot of
institutional knowledge and expertise.
And then they have a partner with SpaceX
that has a lot of experience as well in
launching rockets and now is building a
completely reusable rocket platform. So
there's a lot of momentum going on at
NASA, but China's catching up quickly.
And so their budget is about half of
NASA's budget, maybe a third of NASA's
budget, but they have like 35 year plans
for everything. And they're sort of
following their plan
beat by beat. You know, they've they've
sent a mission to Mars and they put a
rover on the surface of Mars. They've
retrieved multiple samples from the moon
and brought them back. They've also
retrieved a sample from the far side of
the moon for the first time. They're on
their way to retrieve a sample from an
asteroid and they're preparing to send
humans to the moon by 2030. Now, they
may make it, may not make it. Um, and I
think up until this point with the
development of the Aremis mission,
everyone just kind of assumed NASA was
still going to get back to the moon
before the Chinese make it to the moon.
But there was a meeting a couple of
months ago where people are seriously
saying, "Okay, actually, if there's any
more problems, any more delays with
Starship, any more delays with the
Aremis 3 mission, NASA might not
actually get to the moon faster than the
Chinese." And so then, right, the
Chinese will be operating the only space
station at this point after 2030 when
the International Space Station comes
down. They'll have the Chinese space
station. uh they'll be the sort of not
only the first people to return to the
moon in 50 years, but they will be
returning to the moon on a regular
basis. They've got a whole plan
eventually leading to a a like a
permanently inhabited base on the moon.
Uh they're building international
partnerships with a lot of other nations
who aren't flying with NASA groups of
the Middle East, uh India, uh Pakistan,
like a bunch of other countries. They're
building these partnerships with them.
like India's got a really good space
exploration uh sort of system and
they're getting better and better and
better and they're probably going to
send humans to the moon in the 2030s. So
I think it's one of these these things
that is right now NASA is still vastly
more capable than the Chinese space
agency but it's distracted. It's having
its funding cut. Like this is it is not
healthy right now. It is not operating
on all of the cylinders that it can
operate on, which is heartbreaking
because NASA is the best. NASA is the
greatest space exploration culture and
technology and system that the world has
ever seen and it's being dismantled
right now and who knows what's going to
survive, what's going to be left. So I
think that there will be this sort of
constant pressure coming from the
Chinese and that you will possibly see a
resurgence of NASA
or you will just sort of see this slide
towards smaller and smaller projects and
less and less involvement over time. But
right now we do it does feel like we're
approaching this turning point for for
both nations. But like China has
problems of its own. They have
demographic issues. They have economic
issues. Like, you know, I think people
feel like China is like just this
monolithic inevitable
success story, right? And they've got
all kinds of problems that they're
having to deal with. And so, I think
that we're going to find it's going to
still be very interesting with a lot of
players. It's a lot more vibrant. Europe
has got a lot of stuff that's really
interesting and happening. And like I
said, the Indians have one of the most
dynamic uh space exploration uh groups
out there. They're able to talk about
punching way above their weight. You
know, they produced a mission to Mars.
They've got a lot of really interesting
work in and and are pl, you know,
they're planning their own space station
and eventually to send humans to the
moon. So, I think it's just like it's
going to go from, you know, back in the
70s, right? It was there was NASA and
there was the Soviets. And now you've
just got this sort of weird collection
of all these different countries,
private agencies within various
countries. You know, there's something
like 70 rocket companies in China. Uh
you've got SpaceX, which is, you know,
developing a fully reusable two-state
rocket. So I don't think it's really
easy to just give it this like US is
going to win or China's going to win.
It's going to look very different in a
few decades from now. Silus Miller, will
Ver Rubin find a bunch of new Earth
colliding asteroids?
Yes, Ver Rubin will be the perfect
instrument to find asteroids moments
before they hit us. And this is a thing
that's fairly new. In about the last 10
years or so, astronomers have developed
these all sky surveys, things that are
scanning the sky every night. That's how
you get Atlas. Atlas is one of these sky
scanning telescopes. It's kind of like a
precursor to Ver Rubin. and it finds a
lot of objects like Atlas is the object
that we're all familiar with, but there
are a lot of other objects that have
Atlas in their name because they were
found by this telescope. Every night
it's scanning the sky. It's identifying
new objects and turning them up. And so
now there is this asteroid early warning
system that's come online in the last
couple of years where one of these
telescopes finds an object, submits the
trajectory to the minor planet center.
The Minop Planet Center calculates the
trajectory and if it turns out that it's
going to hit the Earth or come extremely
close to the Earth, this alerts a whole
bunch of other telescopes, people get
notifications. They take more images of
it, and they're able to now predict the
impact of one of these asteroids to like
the place on Earth where it's going to
hit, the time that it's going to hit,
and people have gotten an announcement
that one of these asteroids is going to
hit their area. They can go outside.
They can look up and then right on time
they can see the fireball going through
the sky as the asteroid is is on its
way. And so Ver Rubin is the kind of
instrument that is designed to scan the
night sky night after night after night
at a level of depth that gives it more
of a warning. And so instead of it being
something that's found the night before
it hits, it's going to be finding things
that are a few days, a few weeks before
it hits. Small objects. Like it's key
to, you know, it's really important to
say these are all small objects, right?
These are objects that are 1 meter
across, maybe 5 m across. They don't do
any damage. They just explode in the sky
or they leave a really cool trails. They
pass through the atmosphere. And
hopefully we'll get to this place where
every fireball that you could see has
been predicted. And so, you know, you'll
check your calendar. You're like, "Oh,
we've got two fireballs that are coming
tonight. One is going to be at 3:15 a.m.
It's going to go from the east to the
west and it's going to start off in the
constellation of Orion. And you go
outside, you look in the right
direction, you check your watch and then
there it is. Big bright fireball. And so
I've talked in previous uh episodes how
fireballs are these objects that are
very very rare. You know, I've seen one
in my life. Most of you have seen one,
maybe two fireballs in your life.
Imagine if we could see these all the
time because they're happening all the
time. It's just that we don't get any
kind of prediction on when they're going
to happen. And now we're turning the
universe into this kind of clockwork
machine where telescopes like Ver Rubin
are giving us all the warning that we
that we could want. So it's a pretty
exciting time for a lot of fields. It
still hasn't like sunk in with me on how
dramatic a change V Rubin is going to be
for our understanding of the cosmos. And
we are just like a month away from it
kicking up into high gear.
Did you know that you can watch the same
video with no ads and get a bonus
question over on Patreon completely for
free? And we call that Q&A plus. And
this week's bonus question, which
missions can we expect from the Canadian
Space Agency? And I'll put a link in the
show notes. All right, those were all
the questions that we had this week.
Thank everyone who joined me for the
live stream, everybody who put your
comments into the YouTube comments. Uh
now we do the live show every Monday at
uh in the evening somewhere around the
world rotates. Uh the next show is going
to be on Monday, November 3rd at 5:00
p.m. Pacific time. So if you want to
watch that live, uh we'll have an event
here on the calendar. You can go and
check that out. Now I'm going to talk
about Comet Lemon, not three Atlas. But
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So, all eyes are on Comet Drialis, but
we can't have our eyes on it right now
because it is behind the sun. Um, but
there is another comet that is gracing
our skies right now and I would argue is
sort of more accessible to regular
folks. And that is comet C2025
A6 Lemon. And this is a comet that has
been getting brighter and brighter and
actually made its closest approach to
the Earth uh around October 21st. And so
now it's actually starting to get a
little bit farther away from us, but
it's still very bright. Its tail is
quite long and pronounced, and it is
visible with the unaded eye, and that is
always an amazing opportunity. And so if
you want to see Comet Lemon, you have to
look to the west after sunset, after it
starts to get dark. And you do need dark
skies. It currently has a between
magnitude 4 and magnitude 5. And you
know, I was able to see it last night
with my eyes. And I live in a Bortal 3
sky, so it's fairly dark skies, but but
not uh perfectly dark. And and then in
binoculars, you absolutely see it. You
see the tail. It's pretty cool. And then
I was able to take a picture of it with
the sea star um last night. And it's,
you know, looks even better in a in a in
a small telescope when you take a
picture like that. So I would recommend
that you hurry if you want to be able to
see a comet with your own eyes. This
isn't a great one. you know, there have
been better comets. Um, but you know,
the universe clearly doesn't want to
give us a bright comet. And so, if
you've never seen a comet before with
your own eyes, this is a chance to see
one. And I would say it's about another
week or so, 2 weeks that you'll be able
to see it. Now, I can't tell you the
position because the position is
constantly moving. And so, you're going
to need to uh sort of find out the
current location. And there's a lot of
great sites that'll help you find the
current location. Uh, I recommend the
skylive.com.
they've got current location, but
there's lots of other sites that'll do
that and you can then go out and then if
you know your constellations, you can
star hop to be able to find where it is.
But just like in general, if you have a
pair of binoculars or even if it is dark
enough, you can just scan the sky with
your eyes off to the west and you should
see it and then you can look at it with
a telescope and look at it with your
binoculars. And you know, if you aren't
that experienced, then maybe it's going
to take you a couple of nights to be
able to find it. But it's sort of a
great challenge. And this is one of the
wonderful things about u amateur
astronomy is that you can go out and see
these objects with your own eyes. All
right. Uh let me know if you've had a
chance to see it or if you would like
more advice on how to see it or other
comments in general because I, you know,
it's one of those things that we should
all uh get into our eyeballs at least
once. All right, we'll see you next
time.