BBC Sky at Night Magazine - 17 Jun 2025
PLUTO OUT OF THE DARK
ANCIENT STARGAZERS OF THE US SOUTHWEST
WHO REALLY CAME UP WITH THE TELESCOPE?
REVIEWED: SKY-WATCHER’S FIRST H-ALPHA SOLARSCOPE
THE SHOCKWAVES SHAPING THE MILKY WAY’S CENTRE
WHY THE SEARCH FOR PLANET 9 IS HEATING UP
Pluto, the Solar System’s underdog, keeps surprising us
Sky at Night – lots of ways to enjoy the night sky…
Become an Insider
Pluto: 10 years on
Who really invented the telescope?
Chandra: uncovering the high-energy Universe
Sky-Watcher Heliostar 76Ha telescope
Tracking the stars
Skills for stargazers: how to take calibration frames
Starpoint Australis Octans portable observatory
Memories of Hale–Bopp
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Highlights
Explainer: diffraction spikes
The Sky Guide challenge
Inside The Sky at Night
Comets and asteroids
Q&A: a filament finder
Star of the month
July’s all-sky chart
July at a glance
Deep-sky tour
Binocular tour
The big three
Eye on the sky
Cutting edge
Field of view
Moonwatch
The planets
Processing
Interactive
Bulletin
Gallery
Books
Gear
JULY HIGHLIGHTS
This month’s contributors
The Virtual Planetarium
Govert Schilling
Taylor Hartman
ONEARMED SPIRAL
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Butterfly effect ▷
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Universe could end sooner than we think
Comment
Soviet spacecraft plunges to Earth after 53 years
JWST finds frozen water in a young star system
One of largest space structures to date discovered
Hide and seek! A massive star hides in the centre of nebula Sh2-46
Prowling supermassive black hole spotted
NASA’s oldest active astronaut returns to Earth
Early ‘Hot DOG’ is crammed full of gas
INSIDE THE SKY AT NIGHT
“The day after the transit, I checked the data, only to find the event had been missed by hours”
Strange New Worlds
This was Sylvia’s promise to you...
Dwarf 3 gets Flora in focus
Tweet
Comic timing
Relativity riddle
SOCIETY IN FOCUS
Inbox bliss
Let’s talk terms
FIELD OF VIEW
The New Horizons fly-by of this ancient, icy world continues to surprise a decade later. So what have we learned? Ben Evans investigates Pluto : 10 years on
From ice desert to water world?
Beyond Pluto
Chandra
Centaurus A
Our Galactic centre
The Crab Nebula
WR 124
MSH 15-52
NGC 6872
SN 1987A
Cassiopeia A
MACS J0035
Memories of Hale–Bopp
How will we find the next Great Comet?
APHELION DAY
TITANIC TASK
About the writers
TEATIME TREATS
Also on view this month…
Red light friendly
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Friday
◀ Thursday
GETTING STARTED IN ASTRONOMY
Thursday
Friday
Sunday
Moon illusion
Southern Delta Aquariids
Earth at aphelion
CAUTION
PICK OF THE MONTH
The planets in July
JUPITER’S MOONS: JULY
THE NIGHT SKY – JULY
THE NIGHT SKY – JULY
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MOONWATCH
COMETS AND ASTEROIDS
STAR OF THE MONTH
BINOCULAR TOUR
THE SKY GUIDE CHALLENGE
DEEP-SKY TOUR
This Deep-Sky Tour has been automated
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AT A GLANCE
Who really invented the telescope?
Who really invented the telescope?
From blurry to brilliant
Telescopes for invisible light Spanning infrared to X-rays, telescopes now explore far beyond the light we can see
Tracking stars the
Go with a guide
The Sun Dagger of Chaco Canyon
Diffraction spikes
How to take calibration frames
What you’ll need
Step 1
Step 2
Step 4
Step 5
Step 3
Step 6
STEP 1
STEP 5
STEP 3
STEP 6
STEP 2
STEP 4
Make a stunning skyscape
3 QUICK TIPS
△ Planetary nebula PuWe 1
The Rosette Nebula ▷
▽ Partial eclipse and aircraft transit
△ Aurora borealis
◁ The Horsehead Nebula
▽ The Jellyfish Nebula
△ Phases of the Moon
◁ The Cigar Galaxy
Eta Carinae Nebula ▷
The Leo Triplet ▷
Heliostar 76Ha telescope
Etalon filter
2-inch dual-speed focuser
Integrated solar finder
Integrated tuner
Universal smartphone mount
VERDICT
High-quality components
Colour-coded poles
Twin entry doors
Ground mat
Weather-resistant materials
VERDICT
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Battle of the Big Bang
Interview with the author
Photographing Galaxies from Light Polluted Skies
Researchers looking at the centre of our Galaxy have discovered a first: long, slim filaments made not of dust but gas, and forged by powerful shockwaves
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