A globular cluster is a spherical collection of stars orbiting in the halo of spiral galaxies. Our own Milky Way galaxy has over 150 globular clusters.
A new study proposes a novel idea for how to find aliens: Look for their deep space communications when their planets are in alignment, as seen from Earth.
NASA scientists use TESS and Kepler data with a new method to map star spots on distant stars to enhance our understanding of stellar activity and exoplanets.
Aquila the Eagle is home to the bright star Altair, which forms one corner in the Summer Triangle. Look for it in the evening sky from July to November.
A new study suggests that particles of dark matter in exoplanets could form tiny black holes, which would eventually turn entire planets into black holes.