Dark energy seems to be changing, rattling our view of universe
Dark energy, the mysterious force thought to be driving the ever-faster expansion of the universe, appears to be changing over time, according to new observations released Wednesday.
Science and Technology
What is dark energy? One of science's great mysteries, explained
Dark energy makes up roughly 70 per cent of the universe, yet we know nothing about it.
French cave unveils secrets of prehistoric life, art
Deep inside a labyrinthine cave in southwestern France, ancient humans who lived around 30,000 years ago carved horses, mammoths and rhinoceros into the walls, a fabulous prehistoric menagerie that has rarely been seen -- until now.
Stranded NASA astronauts return home, finally
Home at last: After an unexpected nine-month stay in space, a pair of NASA astronauts finally returned to Earth on Tuesday, concluding a mission that captured global attention and became a political flashpoint.
Astronauts finally head home after nine-month ISS stay
A pair of astronauts stranded in space for more than nine months were finally headed home Tuesday after their capsule undocked from the International Space Station.
Asteroid probe snaps rare pics of Martian moon
On the way to investigate the scene of a historic asteroid collision, a European spacecraft swung by Mars and captured rare images of the red planet鈥檚 mysterious small moon Deimos, the European Space Agency said on Thursday...
Global glacier melt is accelerating, scientists say
Ice loss from the world鈥檚 glaciers has accelerated over the past decade, scientists said on Wednesday, warning that melting may be faster than previously expected in the coming years and drive sea levels higher...
Pod of 157 dolphins stranded on Australian beach
A pod of 157 dolphins was found stranded Wednesday on a remote beach in Australia鈥檚 southern island of Tasmania, environment officials said as veterinarians raced to the scene...
Musk says chatbot Grok 3 will be unveiled Monday
Elon Musk said his startup xAI will release its Grok 3 chatbot on Monday and billed it as the 鈥榮martest AI on Earth鈥� in a fiercely competitive market.
2 astronauts stranded on space station to touch down early
Two American astronauts who have been trapped on the International Space Station since June could return to Earth earlier in March than expected, NASA said on Tuesday...
Top researcher blasts 'nonsense' of superhuman AI
Efforts to build artificial intelligence (AI) that could solve all the world\'s problems at a stroke are 鈥榥onsense鈥�, leading researcher Michael Jordan told scientists in Paris ahead of next week\'s global AI summit.
Save world鈥檚 glaciers to save planet: UN
Saving the world鈥檚 shrinking glaciers is a 鈥榮urvival strategy鈥� for the planet, the UN said on Tuesday, a day after president Donald Trump announced the US would withdraw from the Paris climate accord...
US withdraws from global climate change initiative
The Fed entered the Network of Central Banks and Supervisors for Greening the Financial System, or NGFS, in December 2020, praising it at the time as a place to exchange ideas about the development of environment and climate risk management policies for the financial sector...
SpaceX catches Starship booster, ends with upper stage explosion
The triumph was, however, short-lived when teams lost contact with the upper stage vehicle. SpaceX later confirmed it had undergone 鈥榬apid unscheduled disassembly,鈥� the company鈥檚 euphemism for an explosion...
US further restricts AI chip exports
In recent years, Washington has expanded its efforts to curb exports of state-of-the-art chips to China, which can be used in AI and weapons systems, as Beijing鈥檚 tech advancements spark concern among policymakers...