The Sun's surface is currently riddled with sunspot groups that could potentially erupt a few solar flares this weekend. So ...

Anyone can get sunspots, but they usually appear around age 40—thanks to more years spent in the sun. These spots happen when cells that produce skin pigment (called melanin) overproduce after ...

On a dynamic planet like Earth, it can be easy for drivers of change to go unnoticed – but scientists have now established ...

A minor geomagnetic storm is forecast for Wednesday March 5. Chances remain strong for seeing the aurora borealis in the months ahead.

The sunspots are the visible evidence of the solar magnetic field changing its polarity, and appear as darker areas where there is a greater strength of magnetic flux in the sun’s photosphere.

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Most remain buried inside the sun’s massive girth, but some magnetic pipes, as thick as the Earth is wide, emerge on the surface as sunspots. This magnetism choreographs the slithery dance in ...

Actinic keratoses (AK), also known as 'solar keratoses' or 'sunspots,' are skin lesions that ... Actinic keratoses most commonly appear on sun-exposed areas of the body. In some cases they can ...

You may have noticed that more auroras have been visible in recent years, including from lower latitudes. Here's why the northern lights have been amped up lately.

Computer models that factor in the Sun's impact on Earth's surface temperatures are providing more accurate simulations of ...

Galileo was among the first to observe that the Sun was marked by small dark imperfections. Observers began to keep track of these sunspots, noting not only their variable number but the fact that ...

The number of sunspots on the sun's surface changes on a fairly regular cycle, which scientists refer to as the sun's 11-year solar cycle. Sunspot activity, and hence auroral activity, tends to ...