We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

The July 2025 full 'Buck Moon' will give stargazers an opportunity to appreciate several distinct quirks of orbital mechanics ...

Adriano Anfuso/Vikas Chander The elliptical galaxy NGC 474 (lower right) contains multiple shell-like structures and tidal ...

This letter presents an innovative topology of evanescent mode filters with mixed electromagnetic coupling finalized to take full advantage of additive manufacturing techniques. A four-pole filter ...

Abstract: The scaled boundary finite element method (SBFEM) is a semi-analysis method, combing the advantages of boundary element method and finite element method. However, in solving the quadruple ...

Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...

July's full "Buck Moon" will be at its fullest on Thursday, July 10, and will be best seen at moonrise. It is the farthest ...