On Tuesday (July 27), the Centers for Disease Control and Prevention updated their coronavirus mask guidelines. Here's why.
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- What's happening inside Simone Biles' brain when t...
- What's the hottest temperature the human body can ...
- How 350 vaccinated people caught COVID-19 in huge ...
- 'The war has changed,' against new delta variant, ...
- Cathedral's stained-glass windows 'witnessed' medi...
- Buried 'lakes' on Mars may just be frozen clay
- Rocket Lab is back in business, with launch of US ...
- Beat-up duck-billed dinosaur had cracked tailbones...
- Scientists transform water into shiny, golden metal
- People who live to 100 have unique gut bacteria si...
- Perfectly preserved 310-million-year-old fossilize...
- Light from behind a black hole spotted for 1st tim...
- DeepMind says it can predict the shape of every pr...
- Polar bears: The largest land carnivores
- Water vapor detected on huge Jupiter moon Ganymede...
- Enormous graveyard of alien-like sea creatures dis...
- Strange DNA 'borgs' discovered in California
- Baby born with 'twin' fetus inside her stomach
- What are asteroids?
- Remains of twin fetuses and wealthy mom found in B...
- Iceland may be the tip of a sunken continent
- Horny sponges that lived nearly 1 billion years ag...
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