Black holes are among the most profound predictions of Einstein's theory of general relativity. Originally studied as a mere mathematical consequence of the theory rather than as physically releva...

Astronomers on Thursday unveiled the first image of the supermassive black hole at the centre of our own Milky Way galaxy. The finding, published in The Astrophysical Journal Letters, provides overwh...

Albert Einstein was taken aback when German physicist Karl Schwarzschild solved Einstein’s equation within two months of its publication in 1915. The general gravitational equation, which descr...

I have known Roger Penrose closely for quite some time. He has been visiting Calcutta for more than 25 years. His involvement with Albert Einstein’s general theory of relativity is intense; his ...

On the line to Cairo, I talk to Declan Walsh about his very engaging new book, The Nine Lives of Pakistan: Dispatches from a Divided Nation, which gives readers “a sense of being there&rdqu...

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Hurricanes pick up speedIn almost every region of the world where hurricanes form, their maximum sustained winds are getting stronger. Scientists at the National Oceanic and Atmospheric Administration...

There's a lot of news going on about the 'black hole girl' right now, and how she's being given too much credit for her role in the historic first image of a black hole. Because this is too important,...

Black holes got even the great Albert Einstein rattled. The physicist was stumped when his equations predicted the existence of singularity in the densest objects in the universe. Singularity in physi...

Is Albert Einstein finally dead? Yes. The old sage took his last breath and muttered his last indecipherable words, in German, on April 18, 1955. But lately he has been dying a second death, if one be...