Many people look with awe at the spectacular images taken with the Hubble Space Telescope. But today’s amateur astronomers are nearly as good, having developed imaging techniques and using equipment ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It's been quite a while since a bright, naked-eye comet graced the world's skies. But while we ...

Planetary nebulae are the remnants of stars roughly one-to-eight times the size of the sun surrounded by hot gas lit up by ultraviolet radiation. Kastner hopes that through a comprehensive campaign of ...