Photonics researchers have demonstrated how self-imaging of light, a phenomenon known for nearly two centuries, can be applied to cylindrical systems, facilitating unprecedented control of light's ...

A new study using NASA 's James Webb Space Telescope has revealed a variety of light coming from the black hole Sagittarius A* — or rather its accretion disk, the ring of rapidly spinning material ...

Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more common.

US President Donald Trump criticized $21 million funding for voter turnout in India and $29 million to strengthen Bangladesh's political landscape. He questioned the allocation of such substantial ...

By Sunday afternoon everything starts melting again. With the less cloud cover and warmer temperatures, moderate melting is expected this weekend. More significant melting is likely with ...