Cornell Astronomers Discover Uniquely New Galaxy

Cornell Astronomers Discover Uniquely New Galaxy

Cornell astronomers detailed a newly-discovered galaxy with many unique traits, which make it a subject of further exploration, in a Feb. 17 paper. Published in The Astrophysics Journal Letters, the study found that the newly-uncovered galaxy likely has an efficient star formation rate, meaning that more stars are born per year relative to other galaxies. 

The galaxy, known as SPT0418-SE, was discovered in James Webb Space Telescope images of a well-known galaxy, SPT0418-47. The galaxies are close enough for SPT0418-SE’s  gravitational fields to disturb those of SPT0418-47, a characteristic of the system that appears to contradict earlier research. Such findings are relevant to scientists studying the beginnings of the universe and galaxy evolution.

“It’s like looking at a human,” said author Bo Peng, a doctoral student in astronomy.” Looking at the growth of an infant is much more interesting than a 30-year-old person.”

SPT0418-47 is well-documented due to its unique

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Scientists Discover How To Generate New Neurons in the Adult Brain

Scientists Discover How To Generate New Neurons in the Adult Brain

Generate New Neurons in Brain

Newly produced neurons (red) in the dentate gyrus with cell nuclei (blue) and a marker for immature neurons (green). Credit: Knobloch Lab – UNIL

A team of biologists has discovered how to awaken neural stem cells and reactivate them in adult mice.

Some areas of the adult brain contain quiescent, or dormant, neural stem cells that can potentially be reactivated to form new neurons. However, the transition from quiescence to proliferation is still poorly understood. A team led by scientists from the Universities of Geneva (UNIGE) and Lausanne (UNIL) has discovered the importance of cell metabolism in this process and identified how to wake up these neural stem cells and reactivate them. Biologists succeeded in increasing the number of new neurons in the brain of adult and even elderly mice. These results, promising for the treatment of neurodegenerative diseases, are to be discovered in the journal Science Advances.

Stem

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