Russia wants to send cosmonauts to China space station

'Urban green space affects citizens' happiness'

NASA to Air Northrop Grumman Cygnus Departure from Space Station

The most extreme space weather occurs when the Sun blasts billions of tons of energized particles toward Earth at speeds up to 6.7 million mph (3,000 km/s). Known as coronal mass ejections, these explosions can cause intense geomagnetic storms, as well as negatively affect astronauts and spacecraft.