Scientists build low-cost microscope to study living cells in zero gravity
Reports and Proceedings
Updates every hour. Last Updated: 16-Jun-2026 02:16 ET (16-Jun-2026 06:16 GMT/UTC)
BETHESDA, MD – As space agencies prepare for human missions to the Moon and Mars, scientists need to understand how the absence of gravity affects living cells. Now, a team of researchers has built a rugged, affordable microscope that can image cells in real time during the chaotic conditions of zero-gravity flight—and they’re making the design available to the broader scientific community.
The protein “neurofilament light chain” (NfL) – studied in humans in the context of neurodegenerative diseases and aging – is also detectable in the blood of numerous animals, and NfL levels increase with age in mice, cats, dogs, and horses. Experts from the DZNE and the Hertie Institute for Clinical Brain Research (HIH) at the University of Tübingen report these findings in the scientific journal “PLOS Biology”. In their view, this biomarker could help to assess the biological age of animals and estimate their life expectancy.
A study led by the Institute for Bioengineering of Catalonia (IBEC) and the Molecular Biology Institute of Barcelona (IBMB) provides the most detailed picture to date of NrdR — the master regulator of ribonucleotide reductases (RNRs) in bacteria. Researchers obtained the first detailed images of the complete NrdR protein structure and showed how changes in the shape and grouping of this protein affect the way it controls key processes inside the cell. The findings, recently published in International Journal of Biological Macromolecules, increase our understanding of how bacteria regulate the production of the molecular building blocks of DNA, a crucial aspect for both fundamental microbiology and the development of new antimicrobial strategies.
Cleaner fish interacted with a mirror in their tank in a way that suggests ‘contingency testing’ intelligence, a higher form of smarts typically found in mammals. This finding coupled with faster self-recognition than previously thought, expands our image of intelligence in these social fish.
A new study demonstrated that computer models of gut metabolism can predict which probiotics will successfully establish themselves in a person’s gut and how different prebiotics affect production of health-promoting short-chain fatty acids. The findings were published February 19th in the open-access journal PLOS Biology by Sean Gibbons of the Institute for Systems Biology, US, and colleagues.