Cassini’s final main engine burn this weekend sets the stage for a stunning grand finale that sends it into ring-grazing orbits before skimming the planet’s cloudtops.
Bringing order to chaos, the International Astronomical Union has approved standardized spellings and designations for the traditional names of 212 bright stars.
Astronomers are debating the existence of a big planet beyond the orbits of Pluto and Neptune. Dr. Michelle Thaller talks with planetary scientists Scott Shepard and Mike Brown about when we’ll discover it.
The Moon shines about 5° or 6° to the right of little orange Mars in early evening, with Venus blazing far to their lower right.
Calling all imagers! Three comets will make close flybys of Earth over the next two years. Join a new pro-am effort to make the most of this rare triple play.
Thinking about going out for night of astroimaging? Remember the five P’s – Proper Planning Prevents Poor Performance.
Download our monthly astronomy podcast to track down Mercury in the evening sky. Then swing around to the east, to behold Orion, the mighty Hunter, climbing into the sky.
“Name a star” businesses are approaching their peak with the holidays. But since giving stars personal names is unofficial anyway, you might as well do it for free.