DAVID CHILDRESS: A very strange thing happened
in May of 1974 when a Florida man named Terry Betz
found on his island property this curious metal sphere,
now known as the Betz sphere.
They took it home, they didn't know what it was.
WILLIAM HENRY: They thought it looked like, uh,
a downed NASA satellite or maybe a Soviet satellite.
So, Terry just puts it in a windowsill
for a couple of weeks.
Then, one day, he has a friend over,
and as he's playing the guitar,
the sphere suddenly starts to come alive.
It starts making humming sounds and it seems to be responding
to particular notes played by the guitar.
JEFF WILLIAMS: Then another thing he noticed
is that if you put the sphere on the ground,
it'll roll away from you and then roll back
to the person who rolled the sphere initially.
If you put it on a tabletop, it'll roll around the tabletop,
but never off the edge of the tabletop.
Then strange things started happening.
Doors in their houses started slamming on their own.
And they began hearing organ music in the house at night.
And this started to really concern them.
CHILDRESS: They had the military and NASA
come and look at this sphere to see if it was some kind
of military device or, uh, some piece
of a spaceship or something like that.
Both of them said, "No, we don't know what this is."
HENRY: Well, the Betz family decided
to consent to further testing at the nearby naval station.
And after X-raying the sphere, they found out
that it wasn't hollow; that there, in fact,
were two spheres within that sphere.
WILLIAMS: It had magnetic poles.
And these poles would shift and move around on their own accord.
It would defy logic.
How are these spheres moving?
And they also noted that it was sending out radio waves.
CHILDRESS: In the end, no one could ever
explain it, so it was kept with the Betz family.
And today we don't know where this sphere is, in fact.
But you have to ask yourself,
what was this strange metallic sphere?
What was it made of?
How could it do all of the strange things
that it was doing?
LINDA MOULTON HOWE: Where is the Betz sphere today?
And what information is it gathering and communicating back
to whoever made this strange thing in the first place?
That's what I want to know.
Our government has probably learned a great deal
about a sphere that has self-activating software
and maybe has been sending and receiving
to other intelligences the whole time.