When spacecraft return to Earth, one of the tensest parts of the mission is the radio black out that occurs as the vehicle re-enters the atmosphere. Travelling at hypersonic speeds of between Mach 8 and 15, the spacecraft heats and breaks down molecules in the atmosphere causing a plasma to form. It is this plasma sheath that prevents radio communication.
1More
Healthier blueberries, thanks to a blast of purple plasma - 0 views
3More
Magnetic bubble may give space probes a soft landing - 4 views
1More
Student Confirms That There Are Enormous Tubes Of Plasma Floating Above The Earth - 1 views
5More
Relativistic rocket: Dream and reality - 3 views
6More
Everything You Wanted to Know about Space Tourism but Were Afraid to Ask | Space Safety... - 3 views
3More