18. Auroras is an optical phenomenon seen in
the sky over the polar regions of Earth
forming in consequence of the interaction
of charged particles from the solar wind to
the magnetosphere. The phenomenon
may be likened to a stunning dance of
coloured lights in the sky. The reason for
that amazingly beautiful natural
phenomenon is the solar activity.
23. Our Sun is the star in the center of
the Solar system. The average
distance from the Sun to Earth is
approximately 149.6 million
kilometers. In this average distance
light travels from the Sun to the
Earth in about 8 minutes and 19
seconds. The energy of this sunlight
supports almost all life on the Earth
through photosynthesis and guide
the planet's climate.
24.
25. Milky road- our Universal home. The Milky Way galaxy is 100,000 to 120,000
light years in diameter, which contains about 100-400 billion stars.
26. All the stars in the night sky, however,
you see, are surrounded by a yellow
circle
27. That is one of the galaxies -UDF 423. It is 10
billion years away from us. When you look at
the image, you stare at billions of years in the
past.
28. Let's think a bit more extensive, however. Only in this
image taken by the telescope "Hubble", there are
thousands and thousands of galaxies, each containing
millions of stars with their own planets
29. Let’s see some new beautiful objects -
nebulae. The nebula is a cloud of
interstellar dust, gas and plasma. It can
be seen thanks to the emitted or
absorbed by her waves and particles,
which distinguishes it from the
surrounding interstellar medium.
Narrow form due to graviaty collapse of
interstellar gas in galaxies
30.
31.
32. A black hole is an area in space-time
that can not be divorced from
anything, even light, due to its
immense gravity.