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♪

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>> Tim Pyle: Our artist concepts
are going to be the public face

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for some of these objects, and
there's a lot of responsibility

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that comes with that.

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I'm Robert Hurt, I'm the
visualization scientist

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at IPAC, which is a
science and data center

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for astrophysics and planetary
science at Caltech.

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My name is Tim Pyle,

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I'm a multimedia
producer at IPAC.

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I work with Robert.

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>> Hurt:We've done illustrations
of regions where stars form

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and cores, the stellar
remnants after a star

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like our sun dies leaving a
white dwarf.

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A neutron star that's
left at the core

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of a supernova explosion.

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Super massive black holes that
sit in the cores of galaxies.

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>> Pyle: Show the rocky
planets, gas giants,

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brown dwarfs, cool stars.

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>> Hurt: With TRAPPIST-1, I was
immediately thinking,

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"This is going to be the
most significant thing

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that has come out of
the Spitzer mission."

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It's going to be the
result that I think

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Spitzer will really be
remembered for.

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The properties that
we come away with,

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from this kind
of observation

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include the diameter of the
planet, its orbital period,

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>> Pyle: whether it's likely to
be tidally locked

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which will say
something about

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what the planet
probably looks like.

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>> Hurt: If it's less dense
than the Earth,

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it might have more volatiles
like water on it,

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which is why a two
of the TRAPPIST planets

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were shown
as water worlds.

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If it has a higher
density than Earth,

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then it's probably a
little more rocky.

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>> Pyle: By doing these
artist concepts

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we are actually getting
across the point that

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no, these aren't just
“we know there's a planet ther”"

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and that's the extent
of our information about it.

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All of these
decisions are made

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in conjunction with
the scientists.

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>> Hurt: I got my PhD in
astrophysics from UCLA.

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>> Pyle: I'm an artist with a
Hollywood background.

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>>  Hurt: A lot of times I'm
very focused on you know

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the science bullet points that
I'm trying to get across.

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We, we kind of cover each
other's blind spots a bit.

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If you go back and you look at
the whole history of space art,

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and science-based
illustration, for ya know

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reaching back many,
many decades

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you have a
visual history,

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a visual record of our
evolving understanding.

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The art is as much
historical record of

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our changing understanding
of the universe