Bruce Dorminey, writing on Forbes, says that astronomers now confirm that the Sun’s magnetic dynamo is likely to eventually disappear causing our star to lose its 11 year magnetic cycle
In fact, a billion years from now, they say, interplanetary spaceflight could become even more treacherous, since the Sun’s protective magnetic heliosphere would weaken or even disappear, leaving our solar system unshielded from incoming cosmic rays.
In a paper submitted to the journal Solar Physics, co-author Travis Metcalfe confirms that the Sun, a yellow dwarf (G-spectral type) star is indeed making a long term transition in its magnetic activity cycle.
Over the next one to two billion years, we have confirmed that the Sun’s magnetic cycle period will get longer before disappearing entirely.
thanks to Southgate ARN