Magazine | Page 2 of 277 | Astronomy.com

Earth's elliptical orbit

How big is Earth’s orbit around the Sun?

Telescopes and Equipment

New astronomy products to be thankful for

The expanding universe

What is the universe expanding into?

A photo-illustration of the optical illusion known as Mach bands, as seen on Saturn.

How to see a Saturn ring mirage

A double rainbow seen from Saguaro National Park in Tucson, Arizona, features a bright primary and a faint secondary as a companion. In the foreground are giant saguaro cacti.

Explore the science of rainbows

emission nebula NGC 7822

Astrophotography

How are long-exposure astrophotos made?

The Sun is the center of the solar system and provides the energy that makes life on our planet Earth possible. This image, taken by NASA’s Solar Dynamics Observatory across several wavelengths in the extreme ultraviolet part of the spectrum, shows a massive solar flare (lower right) accompanied by a large eruption of material.

Solar System, Stars

Bringing the Sun to light

Jupiter in Taurus

November 2024: What’s in the sky this month?

The author captured the Rosette Nebula under Bortle 2 skies with a ZWO ASI2600MC Pro camera on an Astro-Tech 72ED refractor atop an iOptron CEM40 mount. This image comprises 104 three-minute exposures.

Astrophotography, Telescopes and Equipment

Finding your first astroimaging rig

Astronomy for beginners, Astrophotography, Observing Basics, Solar System

Beginner’s guide: How to photograph comets

A participant at the Kitt Peak Observatory Night Observing Program examines the glittering night sky with binoculars.

Telescopes and Equipment

Astronomy’s 14th annual star products

The Blue Snowball Nebula

Deep-Sky Objects, Observing

Will my telescope show color when viewing deep-sky objects?