Scientists for the first time have detected gravitational waves, ripples in space and time hypothesized by Albert Einstein a century ago, in a landmark discovery announced on Thursday that opens a new window for studying the cosmos.Indian groups contributed significantly to the historic search for gravitational waves.
The researchers said they identified gravitational waves coming from two distant black holes – extraordinarily dense objects whose existence also was foreseen by Einstein – that orbited one another, spiraled inward and smashed together at high speed to form a single, larger black hole.
