Scientific research

Shockwave caused by Tonga underwater eruption may help scientists predict future tsunami

Their findings may lead to speedier predictions of these giant waves.

Every minute is crucial when warning people caught in the path of a tsunami. After the 2004 Indian Ocean earthquake, a tsunami in Indonesia reached Sri Lanka in less than two hours. Eight hours later, it arrived on the coast of Kenya. If there had been a way to notify people about the dangers of a tsunami in those faraway areas, it may have been possible to save at least some of the 230,000 victims.

First picture of black hole imminent, scientists say

They have built an Earth-sized "virtual telescope" by linking a large array of radio receivers - from the South Pole, to Hawaii, to the Americas and Europe.

There is optimism that observation to be conducted during 5-14 April could finally deliver the long-sought prize.

In the sights of the so-called "Event Horizon Telescope" will be the monster black hole at the centre of our galaxy.

Although never seen directly, this object, catalogued as Sagittarius A*, has been determined to exist from the way it influences the orbits of nearby stars.