Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision. But their proximity also offers ample opportunities to learn more about ...

Estimating distances in astronomy is challenging. Think of how hard it is to estimate the distance of someone pointing a flashlight at you on a dark night. Galaxies come in a very wide range of ...

While that federal ban has been in place for decades, John Barentine of Dark Sky Consulting, a member of AAS’s Committee for the Protection of Astronomy and the Space Environment (COMPASSE ...

officially registered the new space rock Jan. 2, saying it was spotted hurling through the final frontier roughly 150,000 miles from Earth, according to Astronomy magazine. Its distance was closer ...