News tagged with solar activity

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Late 20th century was warmest in 1,400 years

Earth was cooling until the end of the 19th century and a hundred years later, the planet's surface was on average warmer than at any time in the previous 1,400 years, according to climate records presented ...

Apr 21, 2013
3.9 / 5 (37) 49

Quiet Interlude in Solar Max

(Phys.org) —Something unexpected is happening on the Sun. 2013 was supposed to be the year of "solar maximum," the peak of the 11-year sunspot cycle. Yet 2013 has arrived and solar activity is relatively ...

Mar 08, 2013
4 / 5 (6) 7

Solar cycle update: Twin peaks?

Something unexpected is happening on the sun. 2013 is supposed to be the year of Solar Max, the peak of the 11-year sunspot cycle. Yet 2013 has arrived and solar activity is relatively low. Sunspot numbers ...

Mar 04, 2013
4.2 / 5 (11) 28 | with audio podcast

Solar variability and terrestrial climate

(Phys.org)—In the galactic scheme of things, the Sun is a remarkably constant star. While some stars exhibit dramatic pulsations, wildly yo-yoing in size and brightness, and sometimes even exploding, the ...

Jan 11, 2013
5 / 5 (15) 122 | with audio podcast

New radio telescope could save world billions

A small pocket of Western Australia's remote outback is set to become the eye on the sky and could potentially save the world billions of dollars. The Murchison Widefield Array (MWA) radio telescope, unveiled today, Friday ...

Nov 30, 2012
5 / 5 (1) 0