Magazine | Page 6 of 277 | Astronomy.com

E: Time’s Telescope was an almanac published in London from 1814 to 1834.

The history of astronomical almanacs

Hubble image of variable star RS Puppis

How do Cepheid variables indicate distance?

20 things to see on the Moon: An observer’s guide to lunar names

The summer Milky Way was photographed from a hilltop over the Modoc Plateau in California using ten 3-minute exposures and a Sigma Art 14mm lens. All photos were taken with a Nikon D750 DSLR, pre-processed in Adobe Bridge, and post-processed in Adobe Photoshop.

Astrophotography

How to take your own wide-field sky images

Exotic Objects, Solar System

What are the chances of dark matter or a black hole ripping apart Earth?

The Moon rises over mountains in Utah. Credit: NASA/Bill Dunford.

Science, The Moon

Why does the Moon look so large sometimes as it rises on the horizon?

Telescopes and Equipment

See the hottest astronomy products of July

The bright skyglow from city lights can easily wash away the night sky, hiding the stars from view. But they are still there, shining — and we can reveal them with collaborations and initiatives underway around the world.

The fight against light pollution

Mars and Comet C/2022 E3 (ZTF) in Taurus

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

Four “bright” members of the Boötes Void hover around 15th magnitude. Each field measures 5' on one side. Credit: Digital sky survey

Deep-Sky Objects, Observing

You can see something in a void. Explore a ‘holy grail’ of astronomy

Artist's rendition of asteroid Psyche

Could Psyche be the core of the planetesimal that struck Earth and formed the Moon?

I captured the Eagle Nebula (M16) at the 2019 Texas Star Party using a borrowed SBIG STF-8300M and Baader 8nm Hα/OIII/SII filters on my Takahashi FSQ106N. Recognize those pillars at the center?

Astrophotography, Observing Basics

How to take Hubble-like photos: Filters and post-processing guide