Life Was Possible in the Early Universe, Says New Data
The discovery of ancient planets and new data suggesting that carbon may have formed in the early universe has overturned conventional wisdom about the possibility of very early life.
What's the Latest Development?
Fresh astronomical discoveries suggest that life may have existed during the early stages of the universe, overturning the conventional wisdom that complex elements such as carbon did not form until billions of years later. One discovery was the observation of two planets orbiting a star that formed 12.5 billion years ago. Another was new data suggesting that more complex elements could have formed in globular clusters, much older parts of the universe, so densely populated with stars that scientists speculate it is more difficult for planets to form and survive there.
What's the Big Idea?
In 2007, the Hubble Telescope found a planet with over twice the mass of Jupiter in the M4 globular cluster. Next, it will look for planets in the 47 Tucanae cluster, though astronomers will likely have to wait until the James Webb Space Telescope is operational to have better data. But if carbon was able to form in the early universe, rocky planets like Earth might have formed, suggesting that life (a long time ago in a galaxy far, far away), might have had billions of years to evolve before the first microbial life forms emerged on Earth, perhaps producing a super-intelligent species.
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Upstreamism advocate Rishi Manchanda calls us to understand health not as a "personal responsibility" but a "common good."
- Upstreamism tasks health care professionals to combat unhealthy social and cultural influences that exist outside — or upstream — of medical facilities.
- Patients from low-income neighborhoods are most at risk of negative health impacts.
- Thankfully, health care professionals are not alone. Upstreamism is increasingly part of our cultural consciousness.
The Bajau people's nomadic lifestyle has given them remarkable adaptions, enabling them to stay underwater for unbelievable periods of time. Their lifestyle, however, is quickly disappearing.
- The Bajau people travel in small flotillas throughout the Phillipines, Malaysia, and Indonesia, hunting fish underwater for food.
- Over the years, practicing this lifestyle has given the Bajau unique adaptations to swimming underwater. Many find it straightforward to dive up to 13 minutes 200 feet below the surface of the ocean.
- Unfortunately, many disparate factors are erasing the traditional Bajau way of life.
We explore the history of blood types and how they are classified to find out what makes the Rh-null type important to science and dangerous for those who live with it.
- Fewer than 50 people worldwide have 'golden blood' — or Rh-null.
- Blood is considered Rh-null if it lacks all of the 61 possible antigens in the Rh system.
- It's also very dangerous to live with this blood type, as so few people have it.
An innovation may lead to lifelike evolving machines.
- Scientists at Cornell University devise a material with 3 key traits of life.
- The goal for the researchers is not to create life but lifelike machines.
- The researchers were able to program metabolism into the material's DNA.
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