Flushing toilets with rainwater reduces household water demand by 25%
Study shows four US cities could save massive amounts of water by using rainwater to flush their toilets.
Australia: Ugly endangered mammals suffer from lack of research
Among 331 Australian mammalian species, many are not studied by scientists, prompting fears for their survival.
Hubble Telescope: 80 galaxies from early universe discovered merging to make star-forming clusters
Scientists have seen young galaxies merging to make bigger galaxies, capable of star formation.
60 powerful photos of the earthquake and tsunami that hit Japan five years ago
At 2.46pm on 11 March 2011, Japan was struck by an earthquake with a magnitude of 9.0 – the biggest in the nation's recorded history and one of the five most powerful recorded ever around the world.
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Welcome to Virunga, the most beautiful place on Earth you've never heard of
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Amazonian tribe takes Peruvian officials hostage following Petroperu oil spill
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Watch beautiful Aurora Borealis light up night sky over County Antrim in Northern Ireland
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Facts on Japan earthquake, tsunami and Fukushima nuclear disaster that killed 15,800
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14 injured when Silicon Valley train derails after crashing into tree fallen on tracks
Heavy winds and driving rains have knocked down several trees in the area, no injuries are life-threatening.
Total eclipse 2016 livestream: How to watch solar eclipse in South-East Asia live online
The 2016 total solar eclipse will take place on 8 and 9 March 2016, and can be followed live online.
Scientists to drill into Mexico's Chicxulub crater where dinosaur-destroying asteroid crashed
Researchers hope core samples will reveal ancient history and how life revived after devastating space-rock impact
Rare ancient seal bearing woman's name found in Israel
The ancient seal indicates that the woman who wore it was legally and financially independent.
Caribbean shipwrecks and tree rings reveal oldest data on hurricane activity
Scientists find hurricane activity was reduced by 75% between 1645 and 1715 - a period of cool temperatures.
Mercury's dark secrets revealed: Planet once had carbon-rich crust
Scientists have been confused by Mercury's dark surface. Nasa's Messenger found dark carbon on its surface.
Rhino poaching: World largest rhino farm protected by private army
To deter poachers, the world biggest rhino farm in South Africa employs heavily-armed men.
Fukushima disaster facts and figures: What happened and what were the effects of the nuclear meltdown?
11 March marks the five-year anniversary of the Fukushima-Daiichi nuclear disaster. What caused the explosions?
Vantablack – a material so super-black it absorbs light from a laser
Surrey Nanosystems makes 'super-black' Vantablack material even darker.
Wellcome Image Awards 2016: The year's best science photos revealed
This year's shortlist includes a map of the human brain's pathways, delicate scales on a moth's wing, and a super-close-up of a butterfly's head.
China: Giant 420m deep underground sinkhole discovered with waterfalls, lakes and wildlife
A 16.5km long 'doline' has been found in China, with waterfalls, lakes and winding rivers.
Ecuador: Tungurahua volcano continues 'Throat of Fire' eruptions
Volcanologists have registered increased activity at Tungurahua for more than a week.
Supervolcanoes destroy all in their path: Evacuation before eruption 'only way to stay safe'
Silver Creek supervolcano flooded California, Nevada and Arizona with ash and gas 18.8 million years ago.
Japan 2011 earthquake and tsunami: Interactive photos show scale of devastation five years later
Interactive photos taken five years apart show the immediate aftermath of the earthquake and tsunami, and the same areas today.
Beam me up: Star Trek-style teleportation could become a reality says scientists
Teleportation is not restricted to the realm of quantum particles, but could be possible in our world.
Mars Orbiter to seek out life on the Red Planet by detecting subterranean microbes
European Space Agency (ESA) to launch the Trace Gas Orbiter, a probe designed to analyse the Martian atmosphere.
Warrior tombs found in massive 4,200-year old necropolis near Bethlehem
Prehistoric cemetery found by archaeologists working at a site called Khalet al-Jam'a.
Iceberg that sank the Titanic was 100,000-years-old and of monstrous size
Scientists believe the iceberg which sank the passenger liner may have originated in southwest Greenland.
Germany demands France close its oldest nuclear power plant after water leak report
Fessenheim Nuclear Power Plant is one of three which France's neighbours are concerned about.
Scientists trying to clone extinct Ice Age cave lions using DNA from 12,000 year old remains
Remains of two lion cubs were found in Russia's north-eastern Sakha Republic in August 2015
UK faces the coldest Easter on record as El Niño artic conditions expected until April
Great Britain is currently dealing with polar conditions caused by Storm Jake as it heads south.
Newly discovered ghost-like deep sea octopus fondly dubbed Casper could be new species
An octopus was discovered in the Hawaiian deep sea that social media has associated with the popular cartoon character.
Bee decline: Two diseases are combining to destroy global honey bees
Bees have declined two thirds in 10 years – varroa and the deformed wing virus may finish them off for good.
Hadal zone: Ten things you never knew about the ocean's deepest places
Vast and mysterious hadal zone - named after Greek god of the underworld Hades - is teeming with life.
Sumatran orangutan population double previous estimates but huge threats remain to species
Critically endangered Sumatran orangutan population found to be 14,600.
Small 30m-wide asteroid called 2013 TX68 set to pass Earth on 8 March
Nasa said that the asteroid could come anywhere between 11,000 and 3,000,000 miles from Earth.
Mexico: Rare albino whale spotted off Pacific coast
Marine biologists captured the footage during an annual census off the coast of Baja California.
Intelligent design: Backlash as PLOS One study claims human hands were designed by 'the Creator'
Journal PLOS One criticised for publishing study attributing dexterity of human hand to 'Creator'.
Total solar eclipse 2016: Everything you need to know about celestial event in Indonesia
On 8 and 9 March 2016 a total solar eclipse will be seen from Indonesia and the central Pacific.
Scott Kelly livestream: Watch Nasa astronaut discuss Year in Space live online
After a year in space, Kelly is back on Earth. He and Nasa members will share their perspectives on the mission.
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