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General Physics 10 hours ago

Large Hadron Collider experiment zeroes in on magnetic monopoles

The late physicist Joseph Polchinski once said the existence of magnetic monopoles is "one of the safest bets that one can make about physics not yet seen." In its quest for these particles, which have a magnetic charge and ...

Cell & Microbiology 11 hours ago

New structures offer insight into how a bacterial motor powers bacterial chemotaxis, a key infectious process

Bacteria existed for millennia before humans and have been infecting us from the beginning. Although we can treat infections through pharmaceuticals, bacteria continue to become resistant to treatment thanks to their rapid ...

Cell & Microbiology 12 hours ago

Genomic analysis of a species of zooplankton questions assumptions about speciation and gene regulation

When two animals look the same, eat the same, behave the same way, and live in similar environments, one might expect that they belong to the same species.

Space Exploration Apr 25, 2024

The Mars Sample Return mission has a shaky future, and NASA is calling on private companies for backup

A critical NASA mission in the search for life beyond Earth, Mars Sample Return, is in trouble. Its budget has ballooned from US$5 billion to over $11 billion, and the sample return date may slip from the end of this decade ...

Molecular & Computational biology Apr 25, 2024

New experimental evidence unlocks a puzzle in vascular tissue engineering

Angiogenesis is a process of forming hierarchical vascular networks in living tissues. Its complexity makes the controlled generation of blood vessels in laboratory conditions a highly challenging task.

Environment Apr 25, 2024

Solar geoengineering to cool the planet: Is it worth the risks?

When I first wrote about geoengineering in 2012 , it was considered far-fetched at best, and crazy by most. But 12 years later, while there is still controversy and considerable resistance to deploying it, respectable scientists ...

General Physics Apr 25, 2024

IRIS beamline at BESSY II gets a new nanospectroscopy end station

The IRIS infrared beamline at the BESSY II storage ring now offers a fourth option for characterizing materials, cells and even molecules on different length scales. The team has extended the IRIS beamline with an end station ...

Astrobiology Apr 24, 2024

A NASA rover has reached a promising place to search for fossilized life on Mars

While we go about our daily lives on Earth, a nuclear-powered robot the size of a small car is trundling around Mars looking for fossils. Unlike its predecessor Curiosity, NASA's Perseverance rover is explicitly intended ...

Bio & Medicine Apr 24, 2024

Imaging technique shows new details of peptide structures

A new imaging technique developed by engineers at Washington University in St. Louis can give scientists a much closer look at fibril assemblies—stacks of peptides that include amyloid beta, most notably associated with ...

Molecular & Computational biology Apr 24, 2024

Testing how well biomarkers work: New fluorescence microscopy method can improve resolution down to the Ångström scale

LMU researchers have developed a method to determine how reliably target proteins can be labeled using super-resolution fluorescence microscopy.

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