The light echoes we see in the sky can take years or even centuries to reach us. What is a light echo? At any given moment in ...

A Shell Oil subsidiary shuttered its light-duty hydrogen fueling station network in California, which could stymie automakers' efforts to make fuel cell vehicles popular in a key market.

Beams of light that can be guided into corkscrew-like shapes called optical vortices are used today in a range of applications. Pushing the limits of structured light, Harvard applied physicists ...

POTTER TWP. ― Shell crews are reintroducing ethane at Beaver County’s petrochemicals complex after weeks of maintenance at the site. Those near the Potter Township facility may notice a ...

Spiral Shell Sheds Light on Red Giant Star's Recent Convulsive History As stars age, they often shed their skins, so to speak, casting off expansive shells of dust and gas into interstellar space.

Life's always been tough on hydrogen fuel-cell electric vehicles (FCEV), and it's only getting tougher thanks to Shell announcing the closure of its retail ...