the ground-level lobby of the Charles/MGH Red Line station. An MBTA rendering of the proposed Red-Blue connector, looking northeast up Cambridge Street. The images also show escalators connecting ...

Rather than transporting electrons between clouds and the ground, however ... image was not acquired until this 1994 image. Red sprites and blue jets are still poorly understood phenomena.

In a stormy Hawaiian sky in July 2017, streaks of red and blue lightning seemed to meet above a bed of white light. Cameras on the Gemini North telescope at the Gemini Observatory in Mauna Kea ...