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.
A research team from Columbia University has found that an unnecessary amount of kidneys are being discarded instead of transplanted.
The glue could buy a soldier enough time to seek appropriate medical attention in a microsurgical facility.
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 week's best photojournalism, from Rohingya refugee crisis and Jerusalem clashes, to skiing Santas and a nudist restaurant.
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.
The US president's mental health was brought into question by TV host Joe Scarborough who claimed Trump was "completely detached from reality".
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.