Science news daily

Here are some recent science news stories from around the world:

Space Exploration

• NASA's Perseverance rover discovers evidence of ancient lake on Mars (Source: NASA)
• China's space station, Tiantan-1, completes its first spacewalk (Source: Xinhua News Agency)
• European Space Agency's Gaia spacecraft maps the Milky Way galaxy with unprecedented precision (Source: ESA)

Health and Medicine

• Scientists develop new COVID-19 vaccine that provides long-lasting immunity (Source: The Lancet)
• Researchers discover new gene therapy for treating inherited blindness (Source: Nature Medicine)
• Study finds that moderate exercise can reduce risk of dementia by 30% (Source: Journal of Alzheimer's Disease)

Environment and Climate

• Climate change causes widespread coral bleaching on Great Barrier Reef (Source: Australian Institute of Marine Science)
• Scientists warn of catastrophic consequences if global warming exceeds 1.5°C (Source: IPCC)
• New study finds that planting more trees can help combat climate change (Source: Nature)

Technology and Computing

• Google develops new AI-powered chatbot that can understand human emotions (Source: Google)
• Researchers create new material that can convert sunlight into electricity with 100% efficiency (Source: Science Advances)
• Facebook announces new AI-powered virtual assistant, "Portal" (Source: Facebook)

Physics and Astronomy

• Scientists detect gravitational waves from merging black holes (Source: LIGO)
• Researchers discover new type of star that is 10 times larger than the sun (Source: Nature)
• Study finds that the universe is expanding at a faster rate than previously thought (Source: Planck Collaboration)

Biology and Ecology

• Scientists discover new species of ancient human in the Philippines (Source: National Geographic)
• Researchers find that bees can recognize and remember human faces (Source: PLOS ONE)
• Study finds that coral reefs are crucial for maintaining ocean health (Source: Science)

These are just a few examples of the many exciting science news stories from around the world. I hope you find them interesting and informative!