Bali is being shaken daily by hundreds of tremors from the mountain, which volcanologists say indicates a high chance of an eruption.
The new iceberg is believed to be unstable and has already broken into smaller chunks as it drifts into the sea.
The tunnels - known as lava tubes - could even help in the search for alien life on Mars.
The remnants of Qalatga Darband date back more than two millennia.
The storm-battered US island territory has struggled through days with virtually no electricity, and more misery could be on the way thanks to a dam that might fail at any moment.
Impacts from space may have been responsible for the first recycling of the Earth's crust.
It uses a type of particle which is half light and half matter.
When the Mediterranean Sea dried up, there were three times more eruptions.
Researchers observed significant differences in behaviour between individual fish.
The 4 billion-year-old binary star system nicknamed Kronos and Krios are around 320 light years away from the Earth.
The agency will concentrate on launching satellites tailored for Australian needs.
The NROL-42 satellite was launched from the Vandenberg air force base in California.
For decades academics have debated how the Egyptians were able to carry 170,000 tonnes of limestone.
We are more likely to find microbial life 'sooner than' intelligent extraterrestrials.
European Space Agency astronaut Paolo Nespoli captured the astonishing footage of the Northern Lights.
The coral provides the sea creature with shelter and protects it from predators.
Researchers at Pierre Auger Observatory found that the high-energy particles are extragalactic.
Study confirms age and contents of an old sack is in line with medieval myth.
Researchers predict that by 2050 there will be as much plastic in the sea as there are fish.
Researchers observed jellyfish sleeping, suggesting the behaviour evolved before the emergence of a central nervous system in the animal kingdom.
The dwelling was uncovered during water pipeline upgrade works.
Fast radio bursts continue to pose a mystery to scientists, with questions surrounding where they originate from.
Tiny but deadly poison frogs have a clever way to stop themselves falling prey to their own venom.
Having the most vibrant distinctive colouring enhances their chances of reproductive success.
Campi Flegrei is a large area of volcanic activity close to Naples.
The creature also represents an entirely new genus, or group of species.
The unusual behaviour may have been linked to sexual activity.
Entire city was planned on a carefully thought-through grid system.
The melt occurred despite having summer conditions that were not unusual.
The unique planetary body is the first to be classified as both a binary asteroid and a main-belt comet.