1. The galaxy of which we are a part, The Milky Way, is actually whirling rapidly, spinning our sun and all its other stars at around 100 million km per hour.
2. One problem with working out the age of the Universe is that there are stars in our galaxy which are thought to be 14 to 18 billion years old – older than the estimated age of the Universe. So, either the stars must be younger, or the Universe older.
3. If you fell into a black hole, you would stretch like spaghetti.
4. A day in Mercury lasts approximately as long as 59 days on earth.
5. Though it is impossible to smell space directly or through a spacesuit, astronauts report that upon returning from a spacewalk, their gear smells distinctively like seared steak, hot metal, and arc welding fumes. The source of this odor could be byproduct from dying stars, the traces of which can be found throughout the universe.
6. Astronomers have estimated that 275 million stars are born and die throughout the observable universe each day.
7. The full cost of a spacesuit is about $11 million although 70% of this is for the backpack and the control module.
8. About 3,000 stars are visible to the unaided eye on a clear moonless night. About 100,000 stars can be seen using a small telescope. There are an estimated one hundred billion (100,000,000,000) stars in our own Milky Way galaxy.
9. The stars we see in the night sky are very far away from us, so far the star light we see has taken a long time to travel across space to reach our eyes. This means whenever we look out into the night and gaze at stars we are actually experiencing how they looked in the past.
10. A year on Venus is shorter than its day.
Venus is the slowest rotating planet in our Solar System, so slow it takes longer to fully rotate than it does to complete its orbit. This means Venus has days that last longer than its years.