By studying Einstein rings, scientists have found that axions are more likely to be the form of dark matter than WIMPs. Learn more about the study here.
Is the U.S. in a space race with China? While both are actively expanding their presence in space and their goals for the moon, one country is still far ahead.
A hybrid eclipse is a solar eclipse that appears as total for some and annular for others, with those farther from the centerline seeing a partial eclipse.
Researchers use machine learning to track bird migration. Through BirdCast, scientists can inform citizens of when to turn their lights out to protect birds.
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.