China has completed construction of the Tiangong space station, and science projects are now underway. The station is an important piece of China’s ambitious plans for space activity in coming years.
Some UFO sightings appear to demonstrate ‘advanced technology’. The Pentagon has confirmed some threaten flight safety, and potentially national security.
The first space tourist left Earth 20 years ago aboard a Russian rocket. Now, private companies like Jeff Bezos’ Blue Origin are offering trips to the stars for those who can pay.