So I bet you are excited for Avengers 2. Are you excited for Avengers 3? Do you know about about the infinity stones well there are 4 out of 6.
The tessaract is the space Jem. It can travel trough space. Right know Odin (thor's dad) owns it , it is guarded by asguard protection. The tessaract is in avengers and captain America.
It has the power to turn matter into dark matter and can go inside you and stay in you until you die. This is in thor .
This has the power to control your mind. this is in the avenges and captain america the winter solder.
The orb has the power to power and to destroy stuff.this is in GUARDIANS OF THE GALAXY.