Nature magazine published findings of a 3.8-million-year-old skull found in Ethiopia, which questioned our previous theories of human evolution.
Jessi Combs broke the female fastest land speed record when her jet-powered vehicle reached a speed of 522.783 mph (841.338 kph).
Leonardo DiCaprio's environmental fund donated $5 million in the battle against Amazon rainforest fires that were devastating the area.
Indonesia announced they plan to move their capital city from Jakarta to Borneo.
American explorer Victor Vescovo became the first person to journey to the deepest points of every ocean.
Russia launched a robot called FEDOR to the International Space Station to work as a remote operator and carry out various tasks autonomously.
NASA announced they would send a ship to Jupiter's moon, Europa, to look for extraterrestrial life.
A funeral was held in Iceland for the loss of the Okjökull glacier.
President Donald Trump announced that he might want to buy Greenland and claim it for the US.
More than 1,200 tin homes were destroyed after a fire broke out in the Chalantika slums of Dhaka, Bangladesh.
A rainfall survey named 'It is raining plastic' announced that tiny plastic particles were found in 90% of rain samples in Colorado, US.
Thousands of anti-government protesters disrupted Hong Kong International Airport.
Floods swept through India, killing over two hundred people and displacing one million.
In Tanzania, people attempted to siphon petrol from an overturned fuel tanker which exploded.
The Department of Health in Manila, Philippines, declared a national epidemic after the dengue outbreak.
World Resources Institute reported that a quarter of the world's population is running out of water.
French inventor Franky Zapata crossed the English Channel on a hoverboard.
Kenyan cancer survivors protested in Nairobi.
Lil Nas X's 'Old Town Road' single reached a new record for the longest time on the Billboard charts after spending 17 weeks at number one.
Meghan Markle became the first-ever guest editor for UK Vogue.
The UK had its hottest day on record.
An asteroid, dubbed 'City Killer,' came closer to Earth than the moon and was almost undetected.
The 9/11 victim compensation fund was extended indefinitely by the US Senate.
Marvel's 'Avengers: Endgame' became the most financially successful movie of all time.
Due to climate change, a deadly heatwave landed in North-East America.
Japanese whaling ships officially resumed activities after a thirty-one-year hiatus.
Same-sex marriage became legal in Austria.
