To further our knowledge of very-low-frequency signals received via the whistler mode of propagation we have constructed a 25-channel spectrum analyser. Other work 1,2 has shown the existence of ...

To see the various colors that make up starlight, astronomers can use a prism to separate the colors. Common elements like helium and calcium in the atmospheres of stars block certain colors of light, ...

A new study demonstrates that the ears of bats come with a 'built-in ambulance' that creates the same physical effect as the sound of an ambulance passing by. Researchers think the study of ...

Vesto Melvin Slipher is one of the key figures often overlooked in histories of modern cosmology. The recent conference I attended at the Lowell Observatory in Flagstaff to celebrate the 100th ...