A brilliant new class of cosmic explosions has been uncovered—so powerful they outshine anything scientists have ever seen.

By Deane Morrison During July the morning sky hosts three bright planets, each following its own path. As the month begins, ...

"We show how planets in binary systems can undergo a mirrored migration process, so that both stars end up with hot Jupiters.

Four prominent celestial objects — the moon, a bright planet and two bright stars — will come together to form a "celestial ...