Science

If faster-than-light travel were possible, it could also be employed for time travel. That would violate causality, the notion that the future cannot change the past

Science

How close are we to making a warp drive?

We are still centuries away from creating a spaceship that can travel at speeds faster than light

By Kenneth Chang /New York Times News Service
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Azadpur vegetable market in New Delhi

Opinion

Planning, modernised. Action awaited

By Ashok V. Desai
The study has defined users as those who have used substance — 9 categories, including alcohol, cannabis, opioids, cocaine, sedatives, inhalants and hallucinogens — at least once in the past 12 months.

India

4.6 lakh children ‘inhalant addicts’

By Our Special Correspondent
Lifeline: Professor Dilip Roy with Belaboti (left) and Uma

People

The altruist of Naradari

By Swachchhasila Basu
Facebook and other Internet companies have been facing increased scrutiny over how they handle user data and have come under fire for not doing enough to stop misuse of their platforms by groups trying to sway elections.

World

UK wants tougher rules for Facebook

By AP
The yoginis are said to possess secret knowledge

Heritage

The lonely temple with 64 Yoginis

By Bitan Sikdar
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