10 Interesting Space Facts
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The fastest spinning objects in the
Universe are neutron stars - these
can rotate 500 times in just I
second. They are so dense that a
tablespoon star would
weigh about ten billion tonnes.
Supernova explosions produce more
energy in their first ten seconds than
the Sun during the whole obits 10
billion year lifetime, and for a brief
period they create more energy than
the rest ofa galaxy put together.
Betelgeuse, a red supergiant 640 light-
years away is the closest supernova
candidate we have. Betelgeuse is so
gigantic that it literally is the diameter
of Saturn' s orbit around the Sun.
The closest galaxy to us is the
Andromeda Galaxy, which is
approximately 2. 5 million light years
from Earth. It is approaching the Milky
Way at about 300 km/ s, and may collide
with it in about 3 billion years.
The Milkyway is spinning at a rate of
225 kilometers per second. In
addition, the galaxy is travelling
through space at the rate
kilometers per second. This means
that we are traveling at a total speed of
530 kilometers (330 miles) per second.
It would take 6341. 958391 years to
count all the stars in the Milkyway
Galaxy at the rate of one star per
The Whirlpool Galaxy () was the very
first celestial object to be identified as
There is no limit to how small or how
large a black hole can be. The nearest
black hole is 1, 600 light years away.
That is about 16 quadrillion kilometers
The energy in the sunlight we see today
started out in the core ofthe Sun 30, 000
years ago - it spent most ofthis time
passing through the dense atoms that
make the sun and just 8 minutes to
reach us once it had left the Sun.
Every year the moon moves about 3. ccm
further away from the Earth due to tidal