April 20, 2021 Page 1
Q&A: What are vaccine passports, and why do some people hate them so much?
Proving a Connection to Enslaved Ancestors Through DNA
Nevada killer seeks firing squad over lethal injection if he's executed
The 1 Thing to Understand About Biden’s Infrastructure Plan
Behind Microsoft’s Nuance Deal: Natural Language Processing, Explained
How the Earth's oceans protect us from climate change — and how that may come back and bite us
Could the Pandemic Prompt an ‘Epidemic of Loss’ of Women in the Sciences?
Can this mineral with an obscure backstory revolutionize solar power?
NASA’s Ingenuity helicopter achieves historic powered flight on Mars
Kosovar biologist calls newly found insect after coronavirus
Watch NASA’s mission control track the first flight on Mars
Report: Mexicos COVID-19 policies cost huge number of lives
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