Solar cycle

Sun`s magnetic field reverses polarity

The sun`s magnetic field has now undergone a total reversal of its polarity, which marks Solar Cycle 24`s midpoint, which is going to be completed in 11 years time, NASA has revealed.

Dec 30, 2013, 10:14 AM IST

Calm solar cycle prompts questions about impact on Earth

The surface of the sun has been surprisingly calm of late -- with fewer sunspots than anytime in the last century -- prompting curious scientists to wonder just what it might mean here on Earth.

Nov 25, 2013, 19:56 PM IST

Sun`s lost its head, pilots and high flyers beware

Air passengers, beware. Your health and that of the crew is at stake.

Jul 05, 2013, 10:22 AM IST

Stronger Sun ‘makes Earth cool, not hot’

Scientists believe that during next upturn of solar cycle there might be a cooling effect on Earth.

Oct 07, 2010, 11:34 AM IST

Satellite data sheds new light on solar cycle

The sun may warm the Earth more during waning solar cycles, new satellite data has shown.

Oct 07, 2010, 10:05 AM IST