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See inside the issue
Get a sneak peek at every page of the August issue.
Features
30 years after comet Shoemaker–Levy 9
How the impact of comet fragments into Jupiter kick-started our planetary protection programme.
Summer’s shooting stars
The Perseids are back with a bang, with no Moon to spoil them!
Moonrise over Stonehenge
An exciting project to test Stonehenge’s connection with major lunar standstills has begun.
Timed to imperfection
Imprecise pulses from pulsars are betraying the presence of a background hum of gravitational waves.
The death of stars
Completing our exploration of the stellar life cycle in Cygnus.
Regulars
Picture this
The most distant star clusters ever seen.
News update
How Mars is being slammed by hundreds of asteroid impacts each year.
A look-back in history
What was happening in the pages of AN 10, 20 and 30 years ago?
Key moments in astronomy
George Tomline, the rich scion who philanthropically funded good causes including observatories.
Absolute beginners
How the Roche limit can rip apart comets, moons and even whole stars.
Imaging masterclass
A shoot-out between the two best noise-reduction apps.
Astrolistings
Find your local astronomical society here.
Picture gallery
Featuring April’s total solar eclipse from Texas.
Astrogear
Including a new harmonic mount from ZWO.
Night Sky
Highlights: Mars and Jupiter
Moonwatch: Mare Humorum
Deep sky: summer nebulae
Deep-sky challenge: NGC 6712
Plus: Sky map, double stars, variable stars and the southern sky.