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Home
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Back Issues
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January 2021

January 2021

ASYCV0121page001

The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level.

Features

It began with a bang

by Dan Hooper

Our universe’s earliest moments are the hardest to explore. But they hold the key to understanding the cosmos.

Inflating the universe

by Brian Keating

In a trillionth of a trillionth of a trillionth of a second, our universe underwent a growth spurt that shaped the structure we see today.

The emergence of matter

by Christopher J Conselice

The universe forged the first elements within minutes of its birth through the process of Big Bang nucleosynthesis.

The cosmic dark ages

by Dana Najjar

For millennia, a hydrogen fog permeated the universe, trapping light.

The first stars are born

by Michael E. Bakich

They lived fast, died young, and seeded the cosmos with material for future generations.

How to build a galaxy

by Michael E. Bakich

About 13 billion years ago, our galaxy formed in the wake of the Big Bang.

Our solar system's origin

by Michael E. Bakich

Researchers know how the Sun shines — but how did it form?

The origins of life on Earth

by David A. Kring

An asteroid impact may have killed the dinosaurs, but earlier cosmic strikes could have helped spawn life in the first place.

Looking for life in the universe

by Morgan L. Cable

Possibilities for extraterrestrial life seem limitless, but a few scientific rules can help us find it.

The Big Crunch vs. the Big Freeze

by Eric Betz

Astronomers once thought the universe could collapse into a Big Crunch. Now most agree it will end with a Big Freeze.

The mystery of dark energy

by Bruce Dorminey

The universe isn’t just expanding, it’s accelerating.

Exploring the shape of space-time

by Avi Loeb

The afterglow of the Big Bang reveals the geometry of the universe.

How black holes die

by Nola Taylor Redd

Long after the last stars fade, black holes will herald the end of the universe with a spectacular show of fireworks.

A cold, lonely death

by Doug Adler

Everything — from creatures to stars to black holes — will eventually decay into nothingness.

Departments

Sky this Month

Twilight observing time

StarDome and Path of the Planets

Messier 78

The Sky This Week: It’s Messier marathon time!

ASYPH0323

Run a Messier marathon in honor of co-inventor Don Machholz

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Sporty new spacesuits revealed for Artemis 3 Moon mission

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EarthriseontheMoon

The biggest space missions to look out for in 2023

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Sun-like star ruled out as source of mysterious WOW! signal

2019totalsolareclipse

25 tips for the 2024 total solar eclipse

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Coming Soon: More travel opportunities with Astronomy

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