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@_semonam_

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우주를 가장 가까이 보여주는 매거진
NASA · Space · Astronomy
실제 원문 이미지와 영상

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태양에서 불기둥이 솟구치는 순간.

영화 장면이 아니라 NASA 태양관측위성 SDO가 포착한 실제 영상입니다.

2012년 8월 31일, 태양의 긴 필라멘트가 우주로 폭발했고 분출물은 초속 약 1,450km 이상의 속도로 이동했습니다.

지구를 정면으로 향한 건 아니지만 일부가 지구 자기권을 스치며 며칠 뒤 오로라를 만들었습니다.

우리가 매일 보는 태양은 생각보다 훨씬 격렬합니다.

출처: NASA Goddard Space Flight Center / Solar Dynamics Observatory

#NASA #태양 #태양폭발 #우주 우주현상 오로라 신기한영상 실제영상 by @_semonam_

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a month ago

A World With No Sun 🌌

Meet SIMP 0136 — a mysterious world drifting through space without orbiting a star.

Located only 20 light-years from Earth, it has about 13 times the mass of Jupiter and completes a full rotation in just 2.4 hours.

Its atmosphere contains complex cloud layers, temperature variations, and signs of powerful auroral activity near its poles. ✨

Imagine a world wandering through the darkness of space… with no sun to call home.

Would you dare to visit? 🌌

#SIMP0136 #BrownDwarf #JamesWebb #DeepSpace #astronomy by @_semonam_

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2 months ago

Two Galaxies, One Cosmic Dance 🌌✨

Meet NGC 2207 and IC 2163 — two spiral galaxies locked in a breathtaking gravitational encounter.

Located more than 100 million light-years from Earth, these galaxies are pulling and distorting each other as they move through space. Their interaction is triggering intense activity, including new star formation and powerful X-ray sources.

And this cosmic dance isn’t over.

Over billions of years, these two galaxies are expected to eventually merge into one massive galaxy.

Two galaxies. One future. ❤️🌌

Send this to someone you’d travel across the universe with. ❤️

#GalaxyCollision #NGC2207 #DeepSpace #Astronomy #universe

📷 Credit: NASA/CXC/SAO/STScI/JPL-Caltech by @_semonam_

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2 months ago

The Hourglass Nebula ⏳👁️

About 8,000 light-years from Earth, MyCn 18 looks almost like a giant cosmic eye staring back at us.

But this incredible structure is actually a planetary nebula formed around a dying Sun-like star. As the star runs out of nuclear fuel, it ejects its outer layers into space, creating the glowing hourglass-shaped clouds we see today. ✨

The colors trace different glowing gases — nitrogen, hydrogen, and oxygen — captured in extraordinary detail by the Hubble Space Telescope.

Does it look like an hourglass… or an eye watching us? 👁️🌌

Send this to someone who loves the universe. ❤️

#HourglassNebula #MyCn18 #Hubble #PlanetaryNebula #deepspace by @_semonam_

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2 months ago

The Butterfly Nebula 🦋✨

Located about 3,800 light-years away in the constellation Scorpius, NGC 6302 looks like a giant butterfly floating through space.

But these beautiful “wings” are actually enormous clouds of superheated gas expelled by a dying star at its center.

A stunning reminder that even the death of a star can create something extraordinarily beautiful. 🌌

Send this to someone who loves the universe. 🦋❤️

*Credit: NASA, ESA, and J. Kastner (RIT)*

#ButterflyNebula #NGC6302 #Hubble #DeepSpace #astronomy by @_semonam_

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2 months ago

The Heart Nebula is an emission nebula located in the constellation Cassiopeia.
Its official designation is IC 1805, and it lies about 7,500 light-years from Earth.
Its beautiful heart-like shape is especially captivating, and new stars are actively forming within it.

The Antennae Galaxies are located about 60 million light-years from Earth.
They are made up of two galaxies, NGC 4038 and NGC 4039, which are currently colliding.

“The Cosmic Keyhole” — NGC 1999

Send this to someone you love ♥️

#HeartNebula #Astrophotography #SpaceLovers #DeepSpace #astronomylovers by @_semonam_

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2 months ago

A planet is literally losing its atmosphere into space.

Located about 33 light-years from Earth, GJ 436b orbits extremely close to its star. Hubble observations revealed that intense stellar radiation is stripping hydrogen from the planet, creating a gigantic cloud and comet-like tail around it.

The escaping hydrogen stretches far beyond the planet itself — showing us what can happen when a world lives too close to its star.

Over immense timescales, planets like this can lose a significant part of their atmospheres.

A planet slowly evaporating before our eyes.

Credit: NASA / ESA / STScI

Hashtags
#Exoplanet #HubbleTelescope #SpaceScience #Astronomy #gj436b by @_semonam_

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2 months ago

by @_semonam_

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2 months ago

Saturn has a giant hexagon at its north pole — and scientists still consider it one of the strangest weather patterns in the Solar System.

This six-sided structure is not solid. It’s a massive jet stream roughly 30,000 km (20,000 miles) across, with winds racing at around 320 km/h (200 mph). A huge rotating storm sits right at the center.

The hexagon was first spotted by Voyager in the early 1980s and was later observed in extraordinary detail by NASA’s Cassini spacecraft. Unlike hurricanes on Earth that usually fade away, Saturn’s hexagon has persisted for decades — and possibly much longer.

Even stranger: its shape stays remarkably organized while the atmosphere around it moves at incredible speeds.

A storm shaped like a perfect hexagon, wider than Earth itself.

Space keeps getting weirder.

Credit: NASA / JPL-Caltech / Space Science Institute

#Saturn #Space #NASA #Cassini #astrónomy by @_semonam_

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2 months ago

이오는 태양계에서 화산 활동이 가장 활발한 천체입니다. 표면에는 수백 개의 화산이 있고, 일부 분출은 물질을 수백 km 높이까지 우주로 뿜어냅니다.

특히 허블은 이오의 Pele 화산에서 약 400km 높이까지 솟은 가스와 먼지 기둥을 포착했습니다. 분출 물질은 이 정도 높이에 도달하려면 시속 3,200km 이상으로 튀어나와야 했던 것으로 추정됩니다.

이렇게 격렬한 화산 활동이 계속되는 이유는 목성의 강한 중력 때문입니다. 이오는 목성과 유로파·가니메데의 중력에 반복적으로 잡아당겨지면서 내부가 끊임없이 휘고 마찰열이 발생합니다. 그 열이 내부 암석을 녹이고, 결국 표면 곳곳에서 용암과 화산 기둥이 터져 나옵니다.

최근 NASA의 Juno 관측에서도 이오 남반구에서 지금까지 기록된 가장 강력한 화산 활동이 확인됐습니다. NASA는 해당 열원이 지구의 슈피리어호보다 큰 규모이며, 이오가 여전히 매우 격렬하게 활동 중인 세계라는 점을 다시 확인했습니다.

우리가 보고 있는 건 조용한 위성이 아닙니다.
목성 옆에서 지금도 계속 끓고 터지는 화산 세계입니다.

출처: NASA / JPL-Caltech / Hubble / Galileo / Juno

#이오 #목성 #nasa by @_semonam_

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2 months ago

허블이 정말 보기 드문 순간을 포착했습니다.

혜성 **C/2025 K1 (ATLAS)**가 태양 근처를 지난 뒤, 며칠 사이 실제로 여러 조각으로 부서지는 모습이 확인됐습니다. 허블은 2025년 11월 8일부터 10일까지 3일 연속 이 혜성을 관측했고, 그 과정에서 핵이 점점 더 갈라지는 장면을 기록했습니다.

NASA에 따르면 허블이 혜성이 붕괴되는 이렇게 이른 단계를 직접 포착한 것은 처음입니다. 관측 당시 K1은 최소 여러 조각으로 분리됐고, 각 조각 주변에는 가스와 먼지로 이루어진 흐릿한 코마가 따로 형성돼 있었습니다.

더 흥미로운 점은 이 혜성이 처음부터 붕괴 대상으로 선택된 것도 아니었다는 것입니다. 원래 다른 대상을 관측하려던 일정이 바뀌면서 우연히 K1을 보게 됐고, 그 순간 혜성이 실제로 부서지고 있었습니다. NASA 연구진도 이런 장면을 포착할 확률은 매우 낮다고 설명했습니다.

우주에서는 거대한 천체만 폭발하는 게 아닙니다.

태양 가까이 접근한 작은 혜성도, 어느 순간 내부를 버티지 못하고 며칠 만에 산산이 갈라질 수 있습니다.

출처: NASA / ESA / Hubble / STScI

#혜성 #허블 #우주 by @_semonam_

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2 months ago

행성인 줄 알았던 이 점은, 사실 거대한 천체 충돌의 흔적이었습니다.

허블 우주망원경이 관측한 포말하우트(Fomalhaut) 시스템에서는 한때 외계행성처럼 보이던 천체가 시간이 지나며 점점 퍼져 나가는 모습이 확인됐습니다.

연구진은 이것이 실제 행성이 아니라, 거대한 두 천체가 충돌한 뒤 남은 먼지 구름일 가능성이 높다고 보고 있습니다.
즉, 우리가 보고 있는 건 단순한 빛 한 점이 아니라 우주에서 실제로 벌어진 거대한 충돌의 잔해인 셈입니다.

처음엔 행성으로 보였지만, 시간이 지나며 정체가 완전히 바뀌었습니다.
우주는 때때로 우리가 알고 있다고 믿었던 장면을, 전혀 다른 이야기로 뒤집어버립니다.

출처: NASA / Hubble / STScI

#천체충돌 #허블 #우주 by @_semonam_

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2 months ago