4
Efforts are underway in Iceland to find ways of turning the heat from volcanoes in to usable electricity.
12
The extremely ambitious endeavour, which is known as 'Mars 2117', was announced in Dubai two days ago.
9
The world's first ever floating city could soon begin construction off the French Polynesian coast.
3
Archaeologists have unveiled a hidden wall that may indicate the presence of nearby pharaonic tombs.
8
Archaeologists have discovered the remains of an ancient city and graveyard at Abydos in southern Egypt.
11
64 years ago, a thick blanket of smog covered the city of London and killed more than 12,000 people.
13
Discovered in a tomb by Spanish archaeologists, the well-preserved mummy dates back over 3,000 years.
9
The large green reptile slithered out of a ceiling compartment during a routine flight to Mexico City.
4
The well-preserved 14,000-year-old remains were unearthed by utility workers in the city of Tultepec.
15
Vanessa Oliver had already witnessed the object several times before finally recording it on her phone.
5
Underwater ruins off the Greek island of Zakynthos have turned out to be a geological phenomenon.
15
Three witnesses claimed to have encountered the entity around one week ago in the city of Santa Cruz.
53
Teenager William Gadoury has become a social media sensation after locating a city in the Yucatan jungle.
18
Residents of Fukuoka were perplexed when a thick layer of foam started to engulf the city's streets.
13
Researchers at Harvard University have developed a way to quickly change the opacity of a glass window.
48
The peculiar video shows a pint-sized entity wandering around on a deserted city street after dark.
19
Stephen Hawking has suggested that a single black hole could power the whole world's electricity supply.
9
Scientists believe that the human brain can remember ten times as much information as previously thought.
28
Authorities have announced an excavation of the mysterious lost city following its discovery last year.
67
Four unidentified objects were caught on camera over the Chilean capital a few days before Christmas.