Articles About Comets (14)

What Are Comets?

Comets are small celestial bodies that orbit the Sun. Primarily made of dust and ice, many have a tail (coma) and are thought to be remnants of the formation of the Solar System.

2021 Cosmic Calendar

Celestial events and highlights of 2021 and 2022 including supermoons, solar and lunar eclipses, meteor showers, solstices, and equinoxes.

Astronomical Glossary - Terms & Definitions

What do astronomers really mean when they use those technical terms?

Meteors: How to See

Dates and tips on how and where to see shooting stars from meteor showers all over the world.

What are Asteroids?

Learn more about these space rocks orbiting the Sun.

What Is a Meteor Shower

Dates and tips on how and where to see "shooting stars" from meteor showers all over the world.

All about Comet Lovejoy

Comet Lovejoy (C/2013 R1) is one of 3 comets that will grace the skies in November, 2013.

All about Comet ISON

Everything you need to know about Comet ISON or C/2012 S1.

2013: Year of comets

2013 is going to be a good year for comet watchers, with at least 3 comets that may be visible without the aid of sophisticated equipment.

Comet Encke (2P/Encke)

Comet Encke (2P/Encke) is a periodic comet which graced the skies in November, 2013.

3 comets in 2013

Three comets - comet ISON, comet Lovejoy and comet Encke will grace the winter skies in 2013.

Comet Lovejoy (C/2014 Q2)

Comet Lovejoy (C/2014 Q2) will become visible to the naked eye in the next few days.

Brightest Comet of 2018

Comet 46P/Wirtanen will grace the night sky in December 2018. Find when, how, and where to see the brightest comet of the year with your naked eyes.

Brightest Comet of 2020

Comet C/2020 F3 NEOWISE will grace the night sky in July 2020. Find when, how, and where to see the brightest comet of the year with your naked eyes.