Dolphin and whale societies are about as sophisticated as our own. They talk, have names, form allegiances, hunt together and work with other species. All they lack is thumbs.
Archaeologists found skeletons from the 13th to 6th centuries BC that bear the marks of severe trauma - but it appears these injuries weren't intended to kill.
For the first time ever, scientists have detected both gravitational waves and light from the same astronomical event, dubbed GW170817.
Nasa found that heat and droughts in the tropical regions of Africa, Indonesia and South America are responsible for the surge in the release of atmospheric CO2.
Hurricane Ophelia's winds fanned more than 140 wildfires across northern Spain and Portugal, killing three in Galicia and six in Portugal.
Storm Ophelia is set to hit Ireland and parts of the UK with gusts of up to 80mph from the Atlantic, causing schools and airports to close.
This was the second classified satellite launched via United Launch Alliance's Atlas V within three weeks.
Nasa's sounding rocket instrument detects signs of nanoflares.
Following Cassini, Nasa needs a new mission to look for life on Saturn's mysterious moons.
The fires have been spreading quickly, engulfing more than 214,000 acres of land and incinerating an estimated 5,700 structures.
The X3 is a Hall thruster, a type of ion thruster that creates propulsion by firing a stream of electrically charged atoms, called plasma, out of a nozzle.
A fleet of spaceplane could bring down the cost of space trip tickets of the company, according to the President.
Archaeologists have discovered a 5,000-year-old toy chariot and rattle while digging at the site of Sogmatar city in Turkey
Archaeologists may have discovered the first evidence of a long-lost satellite pyramid for Ancient Egypt's Queen Ankhnespepy II during excavation works south of Cairo.
A scientist said the public shouldn't worry too much about the supervolcano beneath Yellowstone National Park, saying it is unlikely to erupt in our lifetime, if ever.
Nasa astronaut Randy Bresnik shared a video of fidget spinners and ISS astronauts spinning in zero-gravity.
Oceans that contain clams and worms release 8 times more methane than those without, according to new research.
The program at China Conservation and Research Centre for the Giant Panda has its most successful year ever, with 42 cubs born in 2017.
Easter Island has been used as an example of humankind's selfishness; a moral tale of the dangers of environmental destruction. But new research is painting a different picture.
The star, nicknamed Kronos after the child-eating Titan of Greek mythology, is the clearest and most dramatic case observed to date of a sun-like star consuming its own planets.
The week's best news and sport photos, from California wildfires and Vietnam floods, to the battle for Raqqa, Kenya election protests and Rohingya Muslim refugee crisis.
A breakthrough in the research, scientists believe, would help prevent humanitarian disasters and false alarms.
The participants must remain in the same position for entire duration of the Nasa study, which causes their bodies to adapt as if they were in space.
The data transmitted by Sentinel-5p will also help scientists to further study the formation of holes in the Earth's ozone layer.
Extensive sea ice formation in East Antarctica kill thousands of Adélie penguins – the second such devastation in four years.
The distance of 66,000 light years goes way beyond the previous record for such measurement and could soon help scientists understand the extent of our galaxy.
The storm that hit Vietnam caused its worst flooding in years, submerging more than 30,000 houses and damaging infrastructure, crops and livestock.
The gruesome "undertaking behaviours" were found to increase the chances of a new colony succeeding.
For millenia people have wondered about the "sea people" invasions of the eastern Mediterranean that ended the Bronze Age, new documents shed some light.
The burial garments were found in 9th and 10th century graves in Birka and Gamla Uppsala in Sweden and kept in storage for more than 100 years before being re-examined.