Observing Guide

Space & Astronomy

At various times, the planet Venus or, less often, Mercury is commonly the brightest planet seen in the western sky after sunset. This guide explains what people mean when they...

science-astronomy

The eight moon phases in order are new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, and waning crescent. This sequence repeats...

Sky & Astronomy

To find out whether Jupiter and Venus are visible tonight, start by checking the time of sunset at your location, then wait until astronomical twilight ends and the sky is fully...

astronomy

Comet Lemmon (C/2022 E3) is a long-period comet that brightened through late 2022 and remains observable in modest equipment in early 2024. It offers a reliable target for eveni...