<s>
WorldWide	B-Application
Telescope	I-Application
(	O
WWT	O
)	O
is	O
an	O
open-source	B-Application
set	O
of	O
applications	O
,	O
data	O
and	O
cloud	O
services	O
,	O
originally	O
created	O
by	O
Microsoft	O
Research	O
but	O
now	O
an	O
open	O
source	O
project	O
hosted	O
on	O
GitHub	B-Application
.	O
</s>
<s>
The	O
.NET	B-Application
Foundation	O
holds	O
the	O
copyright	O
and	O
the	O
project	O
is	O
managed	O
by	O
the	O
American	O
Astronomical	O
Society	O
and	O
has	O
been	O
supported	O
by	O
grants	O
from	O
the	O
Moore	O
Foundation	O
and	O
National	O
Science	O
Foundation	O
.	O
</s>
<s>
WWT	O
is	O
completely	O
free	O
and	O
currently	O
comes	O
in	O
two	O
versions	O
:	O
a	O
native	O
application	O
that	O
runs	O
under	O
Microsoft	B-Application
Windows	I-Application
(	O
this	O
version	O
can	O
use	O
the	O
specialized	O
capabilities	O
of	O
a	O
computer	O
graphics	O
card	O
to	O
render	O
up	O
to	O
a	O
half	O
million	O
data	O
points	O
)	O
,	O
and	O
a	O
web	O
client	O
based	O
on	O
HTML5	B-Application
and	O
WebGL	B-Library
.	O
</s>
<s>
Database	O
researcher	O
Jim	O
Gray	O
had	O
developed	O
a	O
satellite	O
Earth-images	O
database	O
(	O
Terraserver	B-Application
)	O
and	O
wanted	O
to	O
apply	O
a	O
similar	O
technique	O
to	O
organizing	O
the	O
many	O
disparate	O
astronomical	O
databases	O
of	O
sky	O
images	O
.	O
</s>
<s>
WorldWide	B-Application
Telescope	I-Application
has	O
six	O
main	O
modes	O
.	O
</s>
<s>
Earth	O
mode	O
allows	O
users	O
to	O
view	O
a	O
3D	O
model	O
of	O
the	O
Earth	O
,	O
similar	O
to	O
NASA	B-Language
World	I-Language
Wind	I-Language
,	O
Microsoft	B-Application
Virtual	I-Application
Earth	I-Application
and	O
Google	B-Application
Earth	I-Application
.	O
</s>
<s>
Unlike	O
most	O
Earth	B-Application
viewers	I-Application
,	O
WorldWide	B-Application
Telescope	I-Application
supports	O
many	O
different	O
map	O
projections	O
including	O
Mercator	O
,	O
Equirectangular	O
and	O
Tessellated	O
Octahedral	O
Adaptive	O
Subdivision	O
Transform	O
(	O
TOAST	O
)	O
.	O
</s>
<s>
There	O
are	O
also	O
map	O
layers	O
for	O
seasonal	O
,	O
night	O
,	O
streets	O
,	O
hybrid	O
and	O
science	O
oriented	O
Moderate-Resolution	B-Application
Imaging	I-Application
Spectroradiometer	I-Application
(	O
MODIS	B-Application
)	O
imagery	O
.	O
</s>
<s>
The	O
new	O
layer	O
manager	O
can	O
be	O
used	O
to	O
add	O
data	O
visualization	B-Application
on	O
the	O
Earth	O
or	O
other	O
planets	O
.	O
</s>
<s>
Planets	O
mode	O
currently	O
allows	O
users	O
to	O
view	O
3D	O
models	O
of	O
eight	O
celestial	O
bodies	O
:	O
Venus	B-Application
,	O
Mars	B-Application
,	O
Jupiter	O
,	O
the	O
Galilean	O
moons	O
of	O
Jupiter	O
,	O
and	O
our	O
own	O
planet	O
's	O
moon	O
.	O
</s>
<s>
It	O
also	O
allows	O
users	O
to	O
view	O
a	O
Mandelbrot	B-Algorithm
set	I-Algorithm
.	O
</s>
<s>
There	O
are	O
over	O
200	O
full-sky	O
images	O
in	O
spectral	O
bands	O
ranging	O
from	O
radio	O
to	O
gamma-rays	O
There	O
are	O
also	O
thousands	O
of	O
individual	O
study	O
images	O
of	O
various	O
astronomical	O
objects	O
from	O
space	O
telescopes	O
such	O
as	O
the	O
Hubble	O
Space	O
Telescope	O
,	O
the	O
Spitzer	O
Space	O
Telescope	O
in	O
infrared	O
,	O
the	O
Chandra	O
X-ray	O
Observatory	O
,	O
COBE	O
,	O
WMAP	O
,	O
ROSAT	O
,	O
IRAS	B-Application
,	O
GALEX	O
as	O
well	O
as	O
many	O
other	O
space	O
and	O
ground-based	O
telescopes	O
.	O
</s>
<s>
These	O
images	O
can	O
be	O
formatted	O
with	O
the	O
astronomical	O
visual	O
metadata	O
(	O
AVM	B-Algorithm
)	O
.	O
</s>
<s>
The	O
Panorama	O
mode	O
allows	O
users	O
to	O
view	O
several	O
panoramas	O
,	O
from	O
remote	O
robotic	O
rovers	O
:	O
Curiosity	O
(	O
rover	O
)	O
,	O
Mars	B-Application
Exploration	O
Rovers	O
,	O
as	O
well	O
as	O
from	O
the	O
Apollo	O
program	O
astronauts	O
.	O
</s>
<s>
Using	O
this	O
tool	O
a	O
user	O
can	O
watch	O
an	O
eclipse	B-Application
(	O
e.g.	O
,	O
)	O
occultation	O
,	O
or	O
astronomical	O
alignment	O
,	O
and	O
preview	O
where	O
the	O
best	O
spot	O
might	O
be	O
to	O
observe	O
a	O
future	O
event	O
.	O
</s>
<s>
WorldWide	B-Application
Telescope	I-Application
was	O
designed	O
as	O
a	O
professional	O
research	O
environment	O
and	O
as	O
such	O
it	O
facilitates	O
viewing	O
of	O
user	O
data	O
.	O
</s>
<s>
Virtually	O
all	O
of	O
the	O
data	O
types	O
and	O
visualizations	B-Application
in	O
WorldWide	B-Application
Telescope	I-Application
can	O
be	O
run	O
using	O
supplied	O
user	O
data	O
either	O
locally	O
or	O
over	O
the	O
network	O
.	O
</s>
<s>
Images	O
with	O
Astronomy	B-Algorithm
Visualization	I-Algorithm
Metadata	I-Algorithm
(	O
AVM	B-Algorithm
)	O
can	O
be	O
loaded	O
and	O
registered	O
to	O
their	O
location	O
in	O
the	O
sky	O
.	O
</s>
<s>
Images	O
without	O
AVM	B-Algorithm
can	O
be	O
shown	O
on	O
the	O
sky	O
but	O
the	O
user	O
must	O
align	O
the	O
images	O
in	O
the	O
sky	O
by	O
moving	O
,	O
scaling	O
and	O
rotating	O
the	O
images	O
until	O
star	O
patterns	O
align	O
.	O
</s>
<s>
Layers	O
support	O
3D	O
points	O
and	O
Well-known	B-Language
text	I-Language
representation	I-Language
of	I-Language
geometry	I-Language
(	O
WKT	O
)	O
,	O
shape	O
files	O
,	O
3D	O
models	O
,	O
orbital	O
elements	O
,	O
image	O
layers	O
and	O
more	O
.	O
</s>
<s>
Using	O
ASCOM	B-Application
the	O
user	O
can	O
connect	O
a	O
computer-controlled	O
telescope	O
or	O
an	O
astronomical	O
pointing	O
device	O
such	O
as	O
Meade	O
's	O
MySky	O
,	O
and	O
then	O
either	O
control	O
or	O
follow	O
it	O
.	O
</s>
<s>
WorldWide	B-Application
Telescope	I-Application
contains	O
a	O
multimedia	O
authoring	O
environment	O
that	O
allows	O
users	O
or	O
educators	O
to	O
create	O
tours	O
with	O
a	O
simple	O
slide-based	O
paradigm	O
.	O
</s>
<s>
The	O
layer	O
manager	O
can	O
be	O
used	O
in	O
conjunction	O
with	O
a	O
tour	O
to	O
publish	O
user	O
data	O
visualizations	B-Application
with	O
annotations	O
and	O
animations	O
.	O
</s>
<s>
Communities	O
are	O
a	O
way	O
of	O
allowing	O
organizations	O
and	O
communities	O
to	O
add	O
their	O
own	O
images	O
,	O
tours	O
,	O
catalogs	O
and	O
research	O
materials	O
to	O
the	O
WorldWide	B-Application
Telescope	I-Application
interface	O
.	O
</s>
<s>
The	O
WorldWide	B-Application
Telescope	I-Application
was	O
designed	O
to	O
be	O
the	O
embodiment	O
of	O
a	O
rich	O
virtual	O
observatory	O
client	O
envisioned	O
by	O
Turing	O
Award	O
winner	O
Jim	O
Gray	O
and	O
JHU	O
astrophysicist	O
and	O
co-principal	O
investigator	O
for	O
the	O
US	O
National	B-Application
Virtual	I-Application
Observatory	I-Application
,	O
Alex	O
Szalay	O
in	O
their	O
paper	O
titled	O
"	O
The	O
WorldWide	B-Application
Telescope	I-Application
"	O
.	O
</s>
<s>
The	O
WorldWide	B-Application
Telescope	I-Application
program	O
makes	O
use	O
of	O
IVOA	O
standards	O
for	O
inter-operating	O
with	O
data	O
providers	O
to	O
provide	O
its	O
image	O
,	O
search	O
and	O
catalog	O
data	O
.	O
</s>
<s>
Rather	O
than	O
concentrate	O
all	O
data	O
into	O
one	O
database	O
,	O
the	O
WorldWide	B-Application
Telescope	I-Application
sources	O
its	O
data	O
from	O
all	O
over	O
the	O
web	O
and	O
the	O
available	O
content	O
grows	O
as	O
more	O
VO	O
compliant	O
data	O
sources	O
are	O
placed	O
on	O
the	O
web	O
.	O
</s>
<s>
The	O
WorldWide	B-Application
Telescope	I-Application
Windows	O
client	O
application	O
supports	O
both	O
single	O
and	O
multichannel	O
full-dome	O
video	O
projection	O
allowing	O
it	O
to	O
power	O
full-dome	O
digital	O
planetarium	O
systems	O
.	O
</s>
<s>
WorldWide	B-Application
Telescope	I-Application
can	O
also	O
be	O
used	O
in	O
single	O
channel	O
mode	O
from	O
a	O
laptop	O
using	O
a	O
mirror	O
dome	O
or	O
fisheye	O
projector	O
to	O
display	O
on	O
inflatable	O
domes	O
,	O
or	O
even	O
on	O
user	O
constructed	O
low-cost	O
planetariums	O
for	O
which	O
plans	O
are	O
available	O
on	O
their	O
website	O
.	O
</s>
<s>
WorldWide	B-Application
Telescope	I-Application
was	O
praised	O
before	O
its	O
announcement	O
in	O
a	O
post	O
by	O
blogger	O
Robert	O
Scoble	O
,	O
who	O
said	O
the	O
demo	O
had	O
made	O
him	O
cry	O
.	O
</s>
<s>
"	O
The	O
WorldWide	B-Application
Telescope	I-Application
takes	O
the	O
best	O
images	O
from	O
the	O
greatest	O
telescopes	O
on	O
Earth	O
...	O
and	O
in	O
space	O
...	O
and	O
assembles	O
them	O
into	O
a	O
seamless	O
,	O
holistic	O
view	O
of	O
the	O
universe	O
.	O
</s>
<s>
This	O
new	O
resource	O
will	O
change	O
the	O
way	O
we	O
do	O
astronomy	O
...	O
the	O
way	O
we	O
teach	O
astronomy	O
...	O
and	O
,	O
most	O
importantly	O
,	O
I	O
think	O
it	O
's	O
going	O
to	O
change	O
the	O
way	O
we	O
see	O
ourselves	O
in	O
the	O
universe	O
,	O
"	O
...	O
"	O
The	O
creators	O
of	O
the	O
WorldWide	B-Application
Telescope	I-Application
have	O
now	O
given	O
us	O
a	O
way	O
to	O
have	O
a	O
dialogue	O
with	O
our	O
universe.	O
"	O
</s>
<s>
A	O
PC	O
World	O
review	O
of	O
the	O
original	O
beta	O
concluded	O
that	O
WorldWide	B-Application
Telescope	I-Application
"	O
has	O
a	O
few	O
shortcomings	O
"	O
but	O
"	O
is	O
a	O
phenomenal	O
resource	O
for	O
enthusiasts	O
,	O
students	O
,	O
and	O
teachers.	O
"	O
</s>
