Installed in the year 1410, this giant outdoor clock in downtown Prague has been ticking for over 6 centuries, and is the world’s oldest astronomical clock still in operation.

At the far north pole, there is the ark of Noah, which kept the seeds for the people of that time, even though all the crops on earth were destroyed. Global Seed Vault under the Global Crop Diversity Trust, also...

In addition, China is building a space telescope along with the space station called the Xuntian (Chinese Space Station Telescope or CSST). Tianhe Core Module Xuntian's field of view with 2 m diameter primary mirror is 300 times larger than...

Not to mention, there is a land on earth where the sun burns even at midnight; Antarctica. Being near the South Pole, the nights and days here are not like ours. Antarctic summer is always sunny. The time when the...