The sun's ascent above Earth's horizon is observed from the International Space Station, marking the approaching peak of ...

In this paper, we design a 38 GHz orbital angular momentum (OAM) antenna consisting of a horn antenna, a spiral phase plate (SPP), and a biconvex lens. The results show that this antenna design scheme ...

If you have thought that the Earth is close to the sun in the summertime and that is why it is hotter this time of year, you ...

Researchers take into consideration data collected by various satellites and spot fast solar winds changing the direction of ...

You might have seen the claim online, and it’s at least partially right, but it's not the only other number of days Earth has had.

With the continuous growth of network traffic, optical wireless communication (OWC) technology based on orbital angular momentum (OAM) can meet the needs of large-capacity modern communication and is ...