Scientists have Captured the Elusive Cell that can Regenerate an Entire Flatworm

Planarian flatworm adult stem cells known as neoblasts can be clustered based on their gene expression profiles (left panel). A neoblast subpopulation termed Nb2 expresses the cell membrane protein TSPAN-1 (center panel, a representative Nb2 cell with TSPAN-1 protein shown in green and DNA in blue). Nb2 neoblasts can repopulate stem cell-depleted animals (right panel, representative animals at different time points after Nb2 single-cell transplants). Credit: Sánchez Alvarado Lab

Planarian flatworm adult stem cells known as neoblasts can be clustered based on their gene expression profiles (left panel). A neoblast subpopulation termed Nb2 expresses the cell membrane protein TSPAN-1 (center panel, a representative Nb2 cell with TSPAN-1 protein shown in green and DNA in blue). Nb2 neoblasts can repopulate stem cell-depleted animals (right panel, representative animals at different time points after Nb2 single-cell transplants). Credit: Sánchez Alvarado Lab

Researchers at the Stowers Institute for Medical Research have captured the one cell that is capable of regenerating an entire organism...

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Distant Moons may Harbor Life

This is an artist's illustration of a potentially habitable exomoon orbiting a giant planet in a distant solar system. Credit: NASA GSFC: Jay Friedlander and Britt Griswold

This is an artist’s illustration of a potentially habitable exomoon orbiting a giant planet in a distant solar system. Credit: NASA GSFC: Jay Friedlander and Britt Griswold

Researchers have identified 121 giant planets that may have habitable moons. Their work will guide the design of future telescopes that can detect these potential moons and look for tell-tale signs of life, called biosignatures, in their atmospheres. Since the 2009 launch of NASA’s Kepler telescope, scientists have identified thousands of planets outside our solar system, which are called exoplanets. A primary goal of the Kepler mission is to identify planets that are in the habitable zones of their stars, meaning it’s neither too hot nor too cold for liquid water – and potentially life – to exist.

Terrestrial (rocky) p...

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Astronomers see Distant Eruption as Black Hole Destroys Star

Artist's conception of Tidal Disruption Event (TDE) in Arp 299. Powerful gravity of supermassive black hole shreds passing star, pulling material into disk rotating around the black hole, and launching jet of particles outward. Artist's conception in pullout -- background is Hubble Space Telescope image of Arp 299, a pair of colliding galaxies. Credit: Sophia Dagnello, NRAO/AUI/NSF; NASA, STScI

Artist’s conception of Tidal Disruption Event (TDE) in Arp 299. Powerful gravity of supermassive black hole shreds passing star, pulling material into disk rotating around the black hole, and launching jet of particles outward. Artist’s conception in pullout — background is Hubble Space Telescope image of Arp 299, a pair of colliding galaxies. Credit: Sophia Dagnello, NRAO/AUI/NSF; NASA, STScI

Star is shredded – Radio telescopes show aftermath. For the first time, astronomers have directly imaged the formation and expansion of a fast-moving jet of material ejected when the powerful gravity of a supermassive black hole ripped apart a star that wandered too close to the cosmic monster.

The scientists tracked the event with radio and infrared telescopes, including the National Science Foundat...

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Tripling the Energy Storage of Lithium-ion Batteries

Substituting the cathode material with oxygen and cobalt prevents lithium from breaking chemical bonds and preserves the material's structure. Credit: Brookhaven National Laboratory

Substituting the cathode material with oxygen and cobalt prevents lithium from breaking chemical bonds and preserves the material’s structure. Credit: Brookhaven National Laboratory

Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries. As the demand for smartphones, electric vehicles, and renewable energy continues to rise, scientists are searching for ways to improve lithium-ion batteries – the most common type of battery found in home electronics and a promising solution for grid-scale energy storage. Increasing the energy density of lithium-ion batteries could facilitate the development of advanced technologies with long-lasting batteries, as well as the widespread use of wind and solar energy...

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