SCIENCE

A new review of cheetah populations in southern Africa suggests there are far fewer of the animals than previously thought.

The Thomas Fire grew by 56,000 acres on Sunday and is now just 10 percent contained, down from 15 percent the day before.

Over 50 US mayors have signed a deal to combat climate change in a similar fashion to the Paris Climate agreement.

Heavy snow led to travel disruptions, traffic accidents and school closures – as well as snowman building, sledging and a flurry of pretty pictures

Mount Hope replaces Mount Jackson as the UK's tallest mountain as per the latest measurements by the British Antarctic Survey (BAS).

Geminid meteors will streak across skies on 13-14 December.

Newly discovered Antarctic microbes need only a few gasses to live. They literally eat the air around them.

The glowing meteor was captured when the space station was travelling at a speed of 28,100kmph.

Had it collided with the Earth, the impact would have obliterated life within a diameter of 6km.

Archaeologists in Egypt have announced the discovery of a mummy in a previously unexplored tomb in Luxor.

In Kenya, the Local Ocean Trust has created a "hospital" that treats turtles that have swallowed plastic waste. Sea turtles often confuse plastic for food.

From Mars to Pluto and Jupiter to the Sun, Nasa's image gallery this year is nothing short of stunning.

From the Big Bang theory being classified as just a speculation to distant galaxies possibly hiding alien worlds – these the best space stories of the week.

The prehistoric lizard is believed to be related to the water-loving pleurosaurs marine reptiles, which are also ancestors of modern sea creatures.

The new research takes us one step closer to developing functional quantum computers and even a quantum internet.

The historic attempt comes just months after SpaceX first relaunched a used Falcon 9 rocket booster into space in March.

25 race horses have been killed after wildfire tore through stalls at a training facility in San Diego. The surviving horses were transported to the Del Mar race track.

A National Geographic photographer captured a dying polar bear struggling to find food. He shared it on social media to bring attention to the effects of climate change.

The city dates back to the ninth century BC Urartian Kingdom and is believed to have hosted funeral ceremonies for ancient royalty.

Children between the ages of 7 and 9 may be at greater risk for developing asthma if they consumed high amounts of fruit sugars – or fructose - in early childhood.

The country's largest volcano has indicated increased seismic activity and geothermal water leakage over the past month.

The discovery could provide astronomers new insights into the behaviour of black holes including how they feed on cosmic objects.

Scientists have recorded the Earth's hum, confirming the vibrational signal, which was first detected in 1998, is indeed real.

Musk plans to initiate the mission to Mars with his BFR rocket in 2022.

Remains of extinct sea creature in Estonia reveal details of structure and function of ancient optical organ that could be the oldest eye ever discovered.

At least four major southern California wildfires have prompted the evacuation of about 200,000 people and destroyed hundreds of homes and buildings.

"This primordial atmosphere created by a magma ocean would have been the hottest and wettest Mars ever was".

Video captures animal hero pulling over on busy highway to rescue animal trapped by blaze engulfing large parts of US state.

The granite structure has been relocated to the Grand Egyptian Museum where it will be restored and put on display alongside thousands of other artefacts.