The satellite has been tasked to provide communication and broadcast services for next 15 years.
SpaceX's final mission for the year, the Falcon 9 launch, was not just successful, but also caused quite a stir in California.
"These platforms don't offer the kind of capabilities we need to expand our app's features in the future," the company said.
The Twitter archive is still not allowed for public access and will remain until embargo "until access issues can be resolved in a cost-effective and sustainable manner."
Antonina Zakharchenko's vision was impaired since childhood and kept getting worse until she lost her sight completely.
A new study reveals that an estimated 2,250 adult great white sharks are roaming off the western coast of Australia, prompting calls for aggressive measures to protect swimmers.
The two Japanese satellites are on separate missions – one will study Earth's climate and the other will test ion engine technology.
The first member of the hybrid species was likely born around 180,000 years ago. It was first spotted in Brazil in 1957.
The abused animal was rescued from an illegal farm where it was kept captive for its bile was harvested for use in traditional Chinese medicine.
Even in today's tech-obsessed society, the wonders of the ancient world continue to delight. Here's our pick of this year's best archaeology stories.
Argentina's navy called off the search for the ARA San Juan 15 days after the submarine went missing with 44 crew members on board.
The waves in the upper atmosphere are similar to the V-shaped waves left behind by a ship moving through water.
Pyongyang reportedly defended its interests in space development as a "legitimate" right, sparking fears about an impending missile test disguised as a satellite launch.
This star, accprding to Nasa and the European Space Agency, has completed the red giant phase of its lifetime and is ejecting gases into space.
From Nasa's Trappist1 discovery to the mysterious Oumuamua – here are the biggest and most interesting space stories of the year.
The amphibious aircraft AG600 is roughly as big as a Boeing 737 and can carry as many as 50 people on board.
Speculation about the account's mysterious and sudden disappearance are doing the rounds on Twitter, with some claiming that Julian Assange deleted his own account.
The robot picks songs, scratches disks and even dances to its music.
Unobserved quantum particles can be tracked by studying the way in which they interact with their environment, physicists say.
The South Korean military is reportedly considering redesigning the decks on the new warship to ensure F-35B fighters can be operated.
This was the first power failure since the battery was installed in South Australia earlier this month.
Ice is melting, animals are starving and humans are sicker. However, solar power is cheaper now and electric cars are getting better. Here's a brief review of climate change in 2017.
The neural network was fed with as many as 240 new and old carols.
The video was created as part of an effort to understand the endurance of these young creatures.
The iceberg, dubbed A-68, is 5,800 square km in area, roughly four times the size of London.
Bruce McCandless logged more than 312 hours in space, including four hours of flight time using a Manned Maneuvering Unit (MMU).
The asteroid, 3200 Phaethon, made a close approach to Earth a few days after the glorious Geminid meteor shower in mid-December.
While one Greenland shark is estimated to be between 272 and 512 years of age, marine biologist Julius Nielsen clarified his team has not found any "600 or 500" year old shark.
Drew Scanlon is far from a household name, but if you've been on the internet this year, you will probably recognise him.
Philippines Storm Tembin: Abdulsalam Binang Amerhasan eaten by crocodile while trying to flee rising water on island of Palawan.