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So to celebrate Hubble's 35th

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birthday, we're releasing
four new images from Hubble.

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There are different parts of the universe.

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One of them is the Rosette Nebula.

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Or a part of it
where stars are still forming.

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And you can see dark clouds
and then lit up clouds behind those

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where new stars are ionizing the gas
and showing off this glow.

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We also are releasing an image
of a planetary nebula.

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Now, this colorful nebula
really has nothing to do with planets.

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That's just what they called it

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decades ago.

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But it is really the remnants
of a dead star system,

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and the outflows from the remaining
white dwarf star are creating

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this glowing cloud that's expanding away
from the central sources there.

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We have an image from outside
of our galaxy, of another galaxy.

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This is a spiral galaxy.

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It doesn't look quite
like we think our Milky Way does,

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because the spiral arms
are kind of smudged together.

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We call it a flocculant spiral.

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But in the middle,
you see this amazing bar like structure.

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These are common in some types
of spiral galaxies, and they are the

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mechanism by which gas and dust
from the outer parts of the galaxy

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are funneled in toward the middle
and can fuel the formation of new stars.

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We think our Milky Way
also has some kind of a bar in the center.

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And then much closer to home in our own
solar system.

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We've taken new pictures of Mars.
These really wonderful clear

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shots of Mars show different features
on the planet from different perspectives.

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As Mars is rotating,
we see the icy poles on the top.

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We see clouds,
and we can also see mountain ranges

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and deep canyons and plane structures.

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Mars is an interesting planet to study,
both for what

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it's doing now,
but for what it was like in the past.

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These images from the Hubble Space
Telescope show us the variety

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of scientific discovery
that Hubble is capable of doing.

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We're using Hubble in new, exciting ways
because Hubble sees wavelengths

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or colors of light
that other observatories

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don't see, and vice versa,
so we use them in complement.

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Scientists are using Hubble's
ultraviolet light capabilities

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to see this energetic light
that comes from star forming regions,

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and also explosive events
out in the universe from energetic stars.

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We're using Hubble to complement
the infrared light

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observations that the newer Webb Space
Telescope can do.

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Webb can see deep into the universe
some of the earliest galaxies.

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Hubble sees nearer galaxies

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in all the detail,
seeing its hot spots of star formation.

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With this information, together,
scientists are piecing together

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how galaxies have grown and merged
and changed over all of cosmic history.

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It's a very exciting new dual tool.

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Well, when

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Hubble was first launched,
we were still just trying to understand

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some very basics,
like how fast is the universe expanding

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and what are some of the processes
by which stars form.

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Hubble
has given us an avalanche of information.

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We've now measured very precisely
the expansion rate of the universe.

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And in fact, now, thanks to Hubble
working with telescopes on the ground,

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we know that that expansion
of the universe is accelerating

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by something called dark energy.

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We've understood that Hubble is picking up
signs of dark matter in the universe.

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This is mass we can't see, but we see its
gravitational effects by distorted light.

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Hubble's picked up lots of regions in the
universe where dark matter is prevalent,

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Scientists are using in particular
the Hubble and the Webb space

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telescopes in complement because they see
different wavelengths of light.

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Hubble concentrates on visible light
and the energetic ultraviolet

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light, and Webb concentrates on red light
and infrared light.

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And so when we have
these observatories used in complement,

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we see this whole spectrum of colors
that enable us to learn a whole

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lot more about whatever we're studying,
whether it's the solar system

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or other star systems or distant galaxies.

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One of the new branches of science newer

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is the study of exoplanets planets
outside our solar system.

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When Hubble was launched,
we didn't even know if there were

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exoplanetary systems
outside of our own solar system.

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And in subsequent years, many exoplanets
have been discovered by other facilities.

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Hubble is now honing in on understanding

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the nature of the atmospheres
of these exoplanets.

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Hubble was the pioneer of a technique
of actually understanding the composition

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of exoplanet atmospheres, and now that
same technique is being used by Webb.

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Astronomers are using the Webb
and Hubble telescopes together

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to get a full spectrum of information
about exoplanet atmospheres

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from the infrared
all the way into the ultraviolet,

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and that helps us understand
how exoplanet atmospheres

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compare to the atmospheres of planets
in our own solar system.

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This is an example
of how Hubble is being used for science

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now that was never envisioned
when Hubble was designed.

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Hubble gave us many discoveries right off
the bat that then gave us new questions.

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So now scientists are using Hubble
to address questions

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that were not even imagined
when Hubble was designed.

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I have

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many favorite images from the Hubble Space
Telescope.

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I love the colorful nebulae

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because they show us
that star formation is still going on.

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But I think my favorite image from Hubble

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is something called the Ultra Deep Field.

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This was an image taken by simply pointing
the telescope in a direction of the sky,

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that didn't have a lot of nearby stars
to drown out the image,

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and just collecting faint light for days
and days with Hubble.

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The resulting image is famous now it's
covered with little splotches of light.

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Well, those little splotches are galaxies.

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Galaxies outside of our own Milky Way.

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And these galaxies can contain
hundreds of billions of stars.

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I like to imagine being able to go
to each one of them and check it out.

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We can't do that yet with our technology,
but we can do it with our eyes

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and just see how galaxies
fill the universe, how rich they are.

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And of course, scientists are now learning
about the history of the universe

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by looking at
how the more distant galaxies

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in this image
compare to ones closer to us.

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Because astronomy is like a time machine,
it's taken time for the light

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to get to us and for the more distant ones
we're seeing farther back in time.

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The Hubble Space

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Telescope is in excellent
technical condition.

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For something that's 35 years
old, it's really incredible.

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And the reason that Hubble is in good
shape is because, first of all,

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we've had these series of astronaut
servicing

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missions where astronauts have returned
to the telescope,

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put in new and improved instrumentation
and repaired components.

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And now we have this excellent
team of experts on the ground

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who are constantly monitoring Hubble's
technical health.

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They can address any glitches remotely
from the ground is pretty incredible.

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And we're even learning to operate
the observatory in different ways

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so that as it ages, we can continue
to get excellent scientific results.

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The Hubble

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team and astronomers
everywhere are excited

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and very gratified
that we're reaching this 35th anniversary

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milestone
for the Hubble Space Telescope mission.

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This mission is older than many people
on planet Earth.

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A lot of people today have grown up
with the Hubble Space Telescope as being a

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part of their lives, and that's something
I think we can be very proud of,

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that this eye on the sky
has given people around the world

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a new view of the universe,
how vast it is, how beautiful it is,

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and how active it is,
and how we are all fellow citizens

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of planet Earth just looking up in
awe and wonder at what we're discovering

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because of this wonderful
miracle of technology.

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One of the reasons the world loves
the Hubble Space

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Telescope
is that we've made our images accessible

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to people around the world
as long as we could do it.

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And, you know, with the internet
coming on board after Hubble was launched,

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it really created a new portal
for sharing the observations

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of this major space
observatory with the world.

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And now people are using
these Hubble images

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for education, for inspiration.

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And just to be curious about
what's in the universe.

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And I love that fact about this mission,
and I'm looking forward to many more

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images and spectra from Hubble
to inspire people

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for years to come.

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NASA has a wonderful website
for information

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about the Hubble Space Telescope.

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It's nasa.gov/hubble,

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and we're also very active on social media
at NASA Hubble.

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So there's lots of information,
all the Hubble images,

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a lot of information
about Hubble's history,

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and a lot of information
about Hubble's future.

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So I encourage everyone to look.