SCIENCE

Large galaxies like our own need to constantly eat smaller galaxies to fuel themselves and ensure they don't die out.

The University of Leicester Archaeological Services announced a team has found a "nationally important discovery" of Iron Age artefacts, including 11 cauldrons.

White male gun owners are also more likely to think that violence against the US government is morally justified, researchers say.

Graviky Labs has developed a technique to make ink from pollution. So far it has cleaned roughly 1.6 trillion litres of air.

Experts advise firm in charge of Fukushima nuclear power plant, damaged by a tsunami in 2011, to release about 1m tonnes of radioactive water into the Pacific.

Exterminator and beekeeper Jules Verret used a GoPro to capture his removal of a massive hornets' nest on camera. The dismantled nest was more than double his body length.

Special pads placed outside the hull of the ISS was found to have bacteria and other living organisms that were not of Earth.

Volcanologists say the volcano has entered a new phase with magma now visible at Agung's peak, meaning a greater risk of a larger eruption.

India, which became the world's second largest sulphur dioxide emitter in 2010, is now closing in on China.

Australian scientists say that some native plant species could be used to "make contaminated regions safe again".

Japan wants to be part of the "Deep Space Gateway" project and join the US and Russia in building a space station near the Moon.

New audit by utility company points to 'hidden environmental menace' of water leakage.

A team from the University of Warwick has found a way to accurately measure the extent to which plastics have polluted the world's oceans.

Both Einstein's theories and Newton's laws work in a universe that does not have dark matter and dark energy, says researcher.

Nasa is working with a group of five high school and college students in a bid to improve virtual reality technologies.

Mount Agung erupted four times on 25 and 26 November, sending ash 4,000 meters (13,000 feet) into the atmosphere.

Dating puts the microfossils to around the time the Earth's atmosphere started to get increasingly oxygen-rich, kick-starting life.

Researchers have ruled out meteors and earthquakes, but most seem to think it is the work of fast-flying aircraft.

Geologist Naresh Ghose found the prokaryote, a tiny, single celled organism, in shale underlying volcanic rock in the Gwalior basin of the Bundelkhand region near Jhansi.

The archaeological team discovered huts, pottery remains and iron tools, as well as 15 large graves at the site in Sohag.

From the odd cigar-shaped interstellar asteroid to the mysterious object shooting across the Heathrow airport – these are the best space stories of the week.

The pachyderm was crossing a highway in India's Bengal state when the 40-year-old got out of his car to take pictures of it.

Alfred Nobel patented dynamite on 25 November 1867. But the inventor of nitroglycerin, dynamite's main component, was far from pleased, and resented Nobel's invention and success.

Researchers found that in some cases, they carried hundreds of different species of bacteria, many of which can be harmful to humans.

Australian authorities have said they will look into the case of Joan Howard who is thought to be in possession of A$1m worth of artefacts from the Middle East.

Warming global temperatures are creating rapid ice-melt in volcanically active regions, such as Iceland.

The forest department officials in the Indian state of Kerala used an excavator to create an escape route for the baby elephant.

In December, a 5km-wide asteroid is expected to fly past the Earth, accompanied by the Geminids meteor shower.

Tourists on a sightseeing trip to a Russian island in the Arctic saw more than 200 bears along the hillside.