Hayley Young

@almostarobot.bsky.social
Interested in everything, particularly space, science, nature, photography, politics...

[Yuri Beletsky @YBeletsky]

I captured this image of the great Comet C/2024 G3 ATLAS from Carnegie Las Campanas observatory in the Atacama desert in Chile. The comet was setting behind the domes of Magellan 6.5-m telescope, and what a majestic moment it was ! 🤩 The comet survived intense solar heating while undergoing partial disintegration, reached an exceptional peak apparent magnitude of −3.8, and displayed prominent dust and ion tails that made it the brightest and most spectacular comet of the recent times.

[Damian Peach🔭🪐 @peachastro]

A close-up this morning of AR4479 as it passes over the limb. Some dramatic activity was observed. I was fortunate to catch a good video under otherwise mostly poor conditions.

Bear in mind this cloud of plasma is significantly larger than Earth!😲🤯

120mm Apo. Daystar Quantum SE. Saturn M-SQR camera.

[Jim Tang @wxmann]

Yesterday night I finally captured the elusive aurora-sprite combo for the first time in my life. In Oklahoma out of all places!

[Damian Peach🔭🪐 @peachastro]

Alpha Herculis, also known as Rasalgethi, is a beautiful triple star system in the constellation Hercules.

To the naked eye it shines as a single bright star of magnitude 3.1, but a small telescope instantly reveals its magic.The primary is a massive, pulsating red super giant (spectral type M5) glowing deep orange-red. Its diameter is roughly the size of Earth’s orbit around the Sun!

Just 4.6 arc seconds away lies its striking companion, which appears greenish-blue or turquoise in contrast - one of the finest color contrasts in the sky. This companion is itself a close spectroscopic binary: a yellow giant and a yellow-white dwarf orbiting each other every 52 days.

The wider pair takes roughly 3,600 years to complete one orbit. Located about 360 light-years away, Rasalgethi (“head of the kneeler”) is a favorite double star target for amateur astronomers.

[Brian A. Klimowski @Brian_Klimowski]

Beautiful aurora over Kalispell MT (Legacy Bike Park) this evening! #mtwx #aurora

[Chris Ratzlaff 🇨🇦🏔️🌾 @ratzlaff]

When you’re filming Aurora and accidentally catch a fireball!

[Braydon Morisseau @BraydonMoreSo]

Noctilucent clouds and aurora over eastern Alberta!

[Jack March Photography📸 @Jacksweatherch1]

This mornings noctilucent cloud display from Hartshill Hayes Country Park
@StormHour @ThePhotoHour #loveukweather

[Paul Blackman @pblackman7]

An image of the sun taken this afternoon. On the left is sunspot region 4478, one of the largest in recent months.

[Thomas Hanrath @AstrophotoCamp]

The Eagle Nebula soars in Serpens, 5,370 light-years away. This stunning star-forming region reaches its best visibility in late June when it culminates at midnight.

https://t.co/gGRcaUN5rt

#astrophotography #astronomy #deepsky

[Chris Jones @jonesy1007]

A fantastic showing of. Noctilucent clouds over Shropshire
27.06.2026
#nlc #noctilucent
#Nightshiningclouds
@BBCStargazing #StormHour

[Jack March Photography📸 @Jacksweatherch1]

Incredible noctilucent cloud display last night from Stockingford in Warwickshire
@StormHour @ThePhotoHour #loveukweather @Shefali_oza

[Jure Atanackov @JAtanackov]

Question for aurora observers: what is the southernnost (equatorward) location that you have seen STEVE from? Is it doable from deep in the mid latitudes?

Photo: Elfiehall on Wikipedia, CC BY-SA 4.0

[Paul M Smith @PaulMSmithphoto]

Recent massive sprites .

[Yuri Beletsky @YBeletsky]

The Milky Way rising above the Hand of the Desert in the Atacama Desert in Chile 🇨🇱 I captured this image a while ago, but it’s still one of my all-time favorites ✨This striking 11-meter concrete sculpture by Chilean artist Mario Irarrázabal was unveiled in 1992 to symbolize human vulnerability and isolation. Over the past years it has become very popular spot among astrophotographers.

[ESA Science @esascience]

No less than 60 million stars in one image.

It's possible thanks to the @ESA_Euclid mission.

For just one day, Euclid turned its gaze to the crowded heart of the Milky Way and captured the largest, most detailed photo ever taken of our galaxy's centre in visible light.

Let's dive deeper 👇

1/8

[Tom Williams @tw__astro]

Saturn this morning through the 24in scope. Some ring spokes and the encke division are clearly seen in this view, with Rhea just 'above' the north pole.

[ESA Webb Telescope @ESA_Webb]

Read more: https://t.co/yE74cRNRNr

#WebbSeesFarther

📷 @NASA , @ESA , @csa_asc , STScI, M.Cordiner (Catholic University of America, GSFC) 3/3

[ESA Webb Telescope @ESA_Webb]

Extremely high levels of deuterium imply that the comet may have originated in a very cold system much earlier in the history of our galaxy, while its carbon composition points to very ancient origins.

The astronomers estimate that 3I/ATLAS could have formed in a freezing-cold cloud 🥶 as long as 10 to 12 billion years ago, during the Universe’s ‘cosmic noon’! 2/3

[ESA Webb Telescope @ESA_Webb]

🆕 Webb has found clues to the ancient origins of 3I/ATLAS!

As the interstellar comet 3I/ATLAS began moving away from the Sun in December 2025 ☄️ astronomers took the opportunity to study its chemical makeup with the #NIRSpec instrument on Webb. This allowed them to understand the environment in which the comet formed. 1/3