Their design has three segments that, collectively, efficiently align and transform a conventional Gaussian beam into an annular beam and then, finally, a Bessel beam of the desired order and OAM ...

An annular solar eclipse wowed skywatchers across the Americas today with an impressive "ring of fire". Sweeping through eight U.S. states before heading over Mexico, Guatemala, Belize ...

Jess Thomson is a Newsweek Science Reporter based in London UK. Her focus is reporting on science, technology and healthcare. She has covered weird animal behavior, space news and the impacts of ...

For some, this will be an annular solar eclipse. That occurs when the moon is at or near the furthest point its orbit and appears small in the sky, and its transit in front of the sun will look ...

Such annular eclipses, also known as a “ring of fire” solar eclipse, are fairly rare, and another one won’t occur over the U.S. again until 2046. All types of solar eclipses occur when the ...

On Saturday, Oct. 14, an annular or “ring of fire” solar eclipse will sweep across much of the Western Hemisphere. The darkest part of the moon’s shadow will slide from Oregon to Texas on ...