solar corona

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Why the New Coronavirus Spreads so Effectively, Explained

Arun Panchapakesan 22/03/2020

The answer lies with how the virus attaches to...

Kodaikanal_Solar_Observatory-a

How the Kodaikanal Observatory Tracked Sunspot Activity Over 115 Years

Sakhee Bhure 27/02/2020

The observatory's archives provide a tantalising glimpse of the...

These images from February 24, 2014, show the first moments of an X-class flare in different wavelengths of light – seen as the bright spot that appears on the left limb of the Sun. Hot solar material can be seen hovering above the active region in the sun's atmosphere, the corona. The images were captured by the Solar Dynamics Observatory. Caption and credit: gsfc/Flickr, CC BY 2.0

Spotted: A New Small Clue for the Very Big, Very Old Puzzle About Our Sun

Sarah Iqbal 25/10/2017

The temperature of the Sun's surface is 5500º C....

It's hard to glimpse the Sun's 'crown' on regular days – but not during a total solar eclipse. Credit: bairi/pixabay

Scientists Predict How Magnetic Streamers Will Decorate Sun During Solar Eclipse

T.V. Venkateswaran 21/08/2017

Understanding how magnetic field lines will dance over the...

An image of the Perseus cluster obtained by Chandra, with X-ray information enhanced. The frame's breadth can fit ten Milky Way galaxies. The cold front is visible at the 7 o'clock position relative to the centre. Credit: NASA, CXC, GSFC, Stephen Walker, et al.

How the Forces That Create Beautiful Clouds on Earth Also Sculpt Galaxy-Wide Bays

Ronak Gupta 23/06/2017

Both the kilometre-long billow clouds in Earth's atmosphere and...