Ritesh Khatri

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Stephen Hawking: How Space Could Save Humanity From Extinction

Professor Stephen Hawking has outlined why humanity could be at risk from the all the progress we have been making in science and technology.<p>In an …

Special Report: Gravity’s Century

In 1915, the universe was small and static. Space was smooth. Gravity pulled things to the ground. At least that’s the way it was in the minds of all …

Physics

Superluminous Supernova Is The Brightest Ever Seen

Astronomers have been left stunned by a superluminous cosmic explosion that outshines the entire output of the 100 billion stars in the Milky Way.<p>The aptly named ASASSN-15lh, spotted by the Automated Survey for Supernovae (ASAS-SN), is a ball of hot gas billions of light years away that radiated …

New theory of secondary inflation expands options for avoiding an excess of dark matter: Physicists suggest a smaller secondary inflationary period in the moments after the Big Bang could account for the abundance of the mysterious matter

Physicists suggest a smaller secondary inflationary period in the moments after the Big Bang could account for the abundance of the mysterious …

Dark Matter

New rumours that gravitational waves have finally been detected

A rumour that the world’s largest gravitational-wave observatory has caught the first whiff of its quarry is heating up.<p>Gravitational waves are …

Ask Ethan: How Fast Do Gravitational Waves Travel?

One of the most surprising predictions of Einstein’s General Relativity is the existence of not just matter, radiation and other particle-based forms of energy, but the existence of gravitational radiation itself, or fundamental “ripples” in the very fabric of spacetime. This is one of the toughest …

Physics

Why These Dutch Students Are Betting On Ant Venom As Auto Fuel

A model car built by a bunch of college kids isn’t your typical news fodder. But last Thursday, the Netherlands’ national news agency watched a team of about 20 students take their sleek black prototype for a spin. The meter-long car drove a few rounds along a podium at the Eindhoven University of …