Bellis and other volunteers from the group helped visitors view sights like the moon, Mars, and the Hercules Cluster, a tight ...

It took about 50 exploding stars to upend cosmology. Researchers mapped and measured light from Type Ia supernovae, the ...

This year, the Perseids began on July 17 and will remain visible until August 24. During its peak, up to 150 meteors an hour ...