A galaxy – huge collection of gas, dust and stars held together by gravity. Most galaxies contain a trillion stars. There may be 170 billion galaxies in universe.
At least 10 billion, trillion stars in universe – 10,000,000,000,000,000,000,000…!
Olympus Mons is the highest mountain in our solar system. 80,000 feet tall, 15 miles higher than Mount Everest.
One million Earth’s could fit within the Sun.
Calcium, carbon, hydrogen, nitrogen, oxygen make up both humans and stars.
Sagittarius B, 26,000 light years away, has billions of litres of vinyl alcohol..!
The lowest note in universe is rumbling of a black hole, 250 million light years away. It’s 57 octaves below middle C.
Star called S2 orbits a super massive black hole in our galaxy at 11,000,000 mph!
Space smells like seared steaks, hot metal and welding fumes.
4 galaxies seen from Earth with naked eye: Milky Way, Andromeda Galaxy, Small and Large Magellanic Clouds.
Closest galaxy to our Milky Way is 80,000 light years away. At least 50 billion planets in the Milky Way.
Can you see me….a tiny little dot, left hand corner..?!
