India's market regulator ordered billionaire Mukesh Ambani and his conglomerate Reliance Industries Ltd. to pay a combined penalty of 400 million rupees ($5.5 million) for allegedly violating share-trading rules about 13 years ago.
In its order dated January 1, the...
A solar storm creates currents in the Earth's magnetic field that affect satellite systems, communications, and power grids.
The Earth is still being exposed to...
