Magazine | Page 6 of 278 | Astronomy.com

Observing, Observing Basics

Why aren’t the constellations always drawn the same way?

Telescopes and Equipment

Find cool products this hot month

V838 Monocerotis

What is a light echo?

10 modern mysteries of the universe

Star trails over Joshua Tree National Park

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

Orion Nebula

Observing, Observing Basics

How do light pollution filters work?

Deep-Sky Objects

Tools for finding dark skies

The gegenschein rests at the tip of the dimmer pyramidal-shaped false zodiacal light.

The mysteries behind the gegenschein

LHC at CERN

Is there a hottest temperature possible in the universe?

Neutron stars are incredibly dense objects about 10 miles (16 km) across. Only their immense gravity keeps the matter inside from exploding; if you brought a spoonful of neutron star to Earth, the lack of gravity would cause it to expand rapidly.

Exotic Objects, Science

What would happen if a tablespoonful of a neutron star was brought to Earth?

galaxy cluster Abell 2744 as seen by JWST and the Chandra X-ray Observatory

Cosmology, Exotic Objects

Astronomers say they’ve spotted the oldest, most distant black hole. How do they know this?

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

The history of astronomical almanacs