Page 183 - DK Children's Encyclopedia

Under
Some deep-sea the sea
fish live for more than Oceans are many
200 miles deep in places.
These black depths

years. are largely unexplored.
The few crafts that
have reached the
bottom of ocean
trenches have found
mysterious new
Age of creatures.
exploration A deep-sea hatchet fish
In the 1400s, Europeans
traveled by ship to distant
places they had never been Around
to before, including America. the world
These long trips were As technology advances, Solar cells on the
called expeditions. new opportunities for wings of Solar
exploration open up. The first flight Impulse 2 use
around the world was made in 1924 sunlight to power
the plane.
by a plane that ran on fuel. In 2016,
Solar Impulse 2 made the first
Wind blew into around-the-world flight using
the sails to power sunlight converted into power.
the ship.

In 1961, Yuri Gagarin
became the first
man in space.

Space
exploration
A Russian spacecraft
called Sputnik 1 first flew
around the Earth in 1957.
Humans soon made it into space,
too, and landed on the moon in
Europeans first 1969. Since then, we’ve used
sailed all the way robots to visit every planet
The Santa Maria to Australia in the in the solar system, as
17th century.
well as comets.

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