SUNSET: 
Comet Leonard: A Gift at Christmastime
Multiple bright outbursts have transformed Comet Leonard into a stunning photographic object that’s also visible without optical aid from southern locations. More disruptions are likely in store as it approaches perihelion.
See Comet Leonard at its Best
The year's brightest comet is now on display in the predawn sky this week and next. Here's how to find it.
How Bright Will Comet Leonard Get?
We examine circumstances and expectations for the current apparition of Comet Leonard, which may become the year's brightest comet.
Comet Watch 2021
If you own an 8-inch or larger telescope you might see more than a dozen new and returning comets this year, including one potential naked-eye candidate.