分类目录归档：space
Black holes are among the most destructive objects in the universe.
Anything that gets too close to the central singularity of a black hole,
be it an asteroid, planet, or star,
risks being torn apar
Scientists work on the boundaries of the unknown,
where every new piece of knowledge forms a path into a void of uncertainty.
And nothing is more uncertain–
or potentially enlightening– than a para
Sending rockets into space requires sacrificing expensive equipment,
burning massive amounts of fuel, and risking potential catastrophe.
So in the space race of the 21st century,
some engineers are ab
what do you picture
when i ask you to think of space
i imagine some of you might picture a
beautiful galaxy
maybe you think of an astronaut standing
on the moon
or maybe you picture some of our planet
[Music]
earlier this year
an ex-boyfriend uploaded the video of
his sexual act
with his then girlfriend and within
weeks
that particular video of the 19 year old
girl
was all over the internet i mean
[Music]
so a couple of years ago just before
thanksgiving my mom was in and at our
house and my son was home from college
and
he came to me my son came and said um i
have a question for you mom
you've
[Music]
[Applause]
i moved to texas six years ago to take
my job here at austin college
and being an astronomer i was the butt
of several jokes
moving to the lone star state
but i think my brother-in-
[Music]
[Applause]
[Music]
spaceship earth is alive
she produces everything humanity needs
including
the perfect atmospheric system for us to
thrive in
she does this with no effort so long as
we don't
every kid
loves space i mean how could you not
when you first see images like this
you're suddenly confronted with the
grandeur of our home planet this
big blue marble floating through space
looks not
i grew up in
canada a town called sudbury
it's a rather unusual place sudbury was
formed
by the impact of a meteorite two billion
years ago
and when that meteorite came crashing to
the ground it left