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10.9 million names now aboard NASA's Perseverance Mars rover

NASA's "Send Your Name to Mars" campaign invited people around the world to submit their names to ride aboard the agency's next rover to the Red Planet. Some 10,932,295 people did just that. The names were stenciled by electron ...

On-chip single-mode CdS nanowire laser

In recent years, increasing attention has been paid to the integration of active nanowires with on-chip planar waveguides for on-chip light sources. Towards this goal, scientists in China demonstrated a highly compact on-chip ...

First ultra-low threshold continuous-wave lasing in GeSn

Transistors in computer chips work electrically, but data can be transmitted more quickly with light. Researchers have therefore been looking for a way to integrate a laser directly into silicon chips for a long time. A team ...

Mirrored chip could enable handheld dark-field microscopes

Do a Google search for dark-field images, and you'll discover a beautifully detailed world of microscopic organisms set in bright contrast to their midnight-black backdrops. Dark-field microscopy can reveal intricate details ...

What if we could teach photons to behave like electrons?

To develop futuristic technologies like quantum computers, scientists will need to find ways to control photons, the basic particles of light, just as precisely as they can already control electrons, the basic particles in ...

A new way to assess male fertility

Current tests for male fertility include measuring the concentration and motility of spermatozoa. However, other characteristics of sperm, such as their ability to follow a chemical trail to the egg, can influence the likelihood ...

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