This channel electron multiplier amplifies the faint signals generated in some types of mass spectrometry and other precision analytical techniques. Electrons are focused into the curved device, where ...

I took a deep dive into the photoelectric effect — where light hits a surface and kicks electrons out. It’s simple, ...

PhoSim simulates the atmosphere, including air turbulence, as well as distortions from the shape of the telescope’s mirrors and the electrical properties of the sensors. The photons are propagated ...

From the International Space Station, NASA astronaut Nichole Ayers captured a rare red sprite over Mexico and the United ...

Plus, microwaves are appliances that the FDA strictly regulates to reduce any potential risk of radiation leakage; the agency ...

NASA has released the closest-ever photos of the sun, taken by the Parker Solar Probe at just 3.8 million miles (6.1 million kilometers) from the star's surface. The new images reveal important ...

From cosmic rays to CT scans, radiation surrounds us but not all exposure is dangerous. Here’s how to separate fact from fear ...

Evidence is mounting that cosmic dark energy, long thought constant, may weaken with time - potentially altering the fate of ...

From asteroids the size of football stadiums to nuclear war and man-made pandemics, it can seem as if humankind is in ...

Speeding around the Earth at 28,000 km/h, NASA astronaut Nichole Ayers captured an incredible view of a phenomenon known as a ...

In the past two years, without much notice, solar power has begun to truly transform the world’s energy system.

Kekulé, born in Darmstadt and trained first as an architect, had already shaken chemistry by insisting carbon forms four ...