Coral reef halos, visible from satellites, can indicate reef health by reflecting predator presence and coral layout.

Pulsars are rapidly rotating neutron stars that emit regular radio wave pulses and beams of magnetic radiation, which can ...

A new NASA mission to map the solar wind has returned some of its first images from its position in low Earth orbit. The ...

NASA's new mission «Polarimeter to Unify the Corona and Heliosphere» (PUNCH), which includes 4 small spacecraft in low Earth orbit, has made the fir ...

These crystals, often hexagonal in shape, act like tiny prisms—bending, refracting, and reflecting light to produce the dramatic 22-degree halo seen around the sun. In some cases, a rarer double ...

69 News viewers shared their pictures of a halo around the moon. For this to happen the moon has to be very bright, so you often only see it if the moon is full. The moon also has to be right ...

Astronomers today have been unable to tally up the total matter produced during the Big Bang 13.6 billion years ago. […] ...

A halo moon has been visible in the skies above Yorkshire and the UK tonight. The sighting is rare yet natural but it left people baffled as to why it had happened. A number of images of the moon ...