Atmospheric gases on Mars sure provide us with plenty of mystery. First, there was that business with the disappearing, reappearing methane. Now, oxygen levels have been observed rising and falling over the Gale Crater, by amounts that just don't fit any known chemical processes.
Oxygen on Mars behaving in a way scientists can't explain
Social media platform Twitter unveiled its plan for handling deepfake videos and other manipulated media, and called for feedback from the public.
Twitter wants your feedback on its deepfake policy plans
The earliest-known example of a pollinating insect has been found preserved in amber dating back to around 99 million years ago, researchers reported.
Beetle fossilized in amber reveals earliest evidence of prehistoric pollination
Japan's Hayabusa-2 probe will leave orbit around a distant asteroid and head for Earth today after an unprecedented mission, carrying samples that could shed light on the origins of the solar system.
Japan's Hayabusa-2 probe to head for Earth
Neuroscientists have discovered a curious aspect of how our memory works. When your brain needs to recall information that is related to a specific location, individual neurons can actually target specific memories.
Individual neurons target specific memories when we remember: Study
NASA recently detected a massive thermonuclear explosion coming from outer space.
NASA scientists detect huge thermonuclear blast deep in space
Cutting the speed of ships has huge benefits for humans, nature and the climate, according to a new report.
Speed limits for ships can have 'massive' benefits
It's the closest thing we've seen to real-life Transformers: Robotic blocks that can travel independently, attach themselves to each other in predefined structures, follow paths and light sources, and more.
MIT researchers create cube robots that swarm together with a hive mind

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