分类目录归档：moon
I must have been about 12 years old
when my dad took me to an exhibition on space,
not far from here, in Brussels.
And the year was about -- I think it was 1988,
so it was the end of the Cold War.
The
Nobody likes to make a mistake.
And I made a whopping one.
And figuring out what I did wrong led to a discovery
that completely changes the way we think about the Earth and Moon.
I'm a planetary scien
I want to tell you a story about stories.
And I want to tell you this story because I think we need to remember
that sometimes the stories we tell each other
are more than just tales or entertainment
Picture a world with a variety of landforms.
It has a dense atmosphere
within which winds sweep across its surface
and rain falls.
It has mountains and plains,
rivers, lakes and seas,
sand dunes and s
Right now, there's a lot happening with the Moon.
China has announced plans for an inhabited South Pole station
by the 2030s,
and the United States has an official road map
seeking an increasing numbe
How many times can you fold a piece of paper?
Assume that one had a piece of paper that was very fine,
like the kind they typically use to print the Bible.
In reality, it seems like a piece of silk.
T
two years ago here at Ted I reported
that we had discovered at Saturn with
the Cassini spacecraft an anomalously
warm and geologically active region at
the southern tip of the small Saturnian
moon Enc
Have you ever noticed
how the full moon looks bigger
when it's near the horizon
than when it's high over head?
If so, you're not alone.
People have wondered about this strange effect
since ancient tim
You roll out of bed and leap eight meters across your underground habitat.
The greywater from your sink drains into a small greenhouse
where your vegetables grow.
After suiting up,
you head through a
[Music]
we choose to go to the moon
in this decade and do the other things
not because it's easy but because it's
hard
because that goal will serve to organize
the best of our energies and skills
when