But when it melts it creates a toxic slush full of carcinogenic compounds.
As the end of the orbiter's mission approaches, IBTimes shows some of its best photographs.
The new snail-worm species was discovered on the hull of the USNS General Hoyt S Vandenburg shipwreck.
Adding fluting to stone tips is tricky and can easily backfire, creating weaker tips rather than stronger ones if done wrong.
Males of this species stick out a full 21-day orgy without eating, ruining their body condition and shortening their lives.
Astrophysicists show three events that can lead to merger through LIGO gravitational waves.
The remains of the pyramid were discovered at the Dahshur royal necropolis.
A 420m-year climate record suggests we are entering uncharted territory in terms of atmospheric CO2.
For the first time, researchers have directly dated rock art in Lesotho, Botswana and South Africa.
Marine biologists have turned to 3D modelling to educate the world on increasing damage to coral reefs.
Giant waterfalls eroded the land bridge before a megaflood destroyed it completely.
The woman is thought to be a direct descendant of the founding population of South-East Asia.
Children faced a wide array of threats to their lives in the city of Carthage.
The location and orientation of the Uffington White Horse has been linked to the arc of the midwinter sun.
The Emperor has gone down in history as a tyrant but archaeologists are looking for his luxurious ship.
The aim is to send humans to Mars from the docking station.
Violence was less widespread in Mesopotamia than in the rest of the Near East 5,200 years ago.
An avalanche of mud, water and debris smashed into Mocoa, engulfing homes and killing at least 273 people, many of them children.
The family was reportedly involved in helping flood victims before the tragedy took place.
The death toll reached 273 as the search for missing people continues.
Beads and a pendant were made from the bones of the bear cuscus and teeth of the pig-deer.
Species is believed to have emerged in the last 20,000 years, showing fast rate of evolution in underground habitats.
Scientists say pairs of entangled photons do not actually need to originate from the same point in a crystal.
Filtration system separates salt from seawater, raising hope for millions of people who lack clean water.
Gamma ray burst detected from 12 billion light years away - but no one knows what caused it.
To solve the problem, authorities have vowed to submit proposals to Ministry of Environmental Protection in 20 days.
Parents search the ruins of their homes after a torrent of mud swept through Mocoa in southern Colombia – killing at least 254 people, many of them children.
Commercial whaling in Norway continues as it does not recognise the International Whaling Commission's ban.
Rees says extraterrestrial life would either be far less advanced - or they will have developed full electronic intelligence.
This is the second vessel belonging to the Pharaoh discovered at the site.