Hear from a ham radio operator about how solar eclipses temporarily affect Earth's upper atmosphere, or ionosphere. Eclipses can disrupt radio signals and GPS in the region where the eclipse is passing.
Facial recognition software used to study the social behavior of individual geese in Europe will soon be used to monitor rare geese in South Australia.
Space junk is an increasing problem. With more countries and private companies entering space, more junk is accumulating and no one is in charge of cleaning up.
A space rock that came to rest in the Sahara desert is more than 4.5 billion years old. It helps scientists understand the conditions of our early solar system.
Scientists are using GPS, satellites and statistics to track and protect giraffes. Read more about the efforts in Africa to protect these iconic animals.
Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them.