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I'm
an astronomer.
As Director of the Hayden Planetarium at the American Museum of Natural
History in New York City, I study and teach astronomy. That's
the science of planets, moons, stars,
galaxies ,
comets
and other fascinating
stuff.
As a kid, I used to visit
the Hayden Planetarium for the star shows. I also studied the night
sky with a telescope By studying astronomy, I have learned lots of mind-boggling things. |
|
Astronomy
is a BIG
subject.
It's full of
gigantic objects,
enormous distances,
incredible speeds,
and
extreme temperatures.
Astronomers estimate that the universe is
billions of
years old. The temperature inside the Sun is
millions of
degrees. Light from distant stars can travel for
millions of
years and
trillions of miles
before it reaches us.
Astronomers' questions are also big: "How did the universe begin?" "Is there life on other planets?" By using careful observations and tools, astronomers have learned a lot about our solar system, our galaxy and beyond. |
