Galaxy clusters are among the largest objects in the universe!

Studying them helps us learn more about the distribution of mysterious dark matter, which makes up most of a galaxy cluster's mass. 

This #HubbleFriday view shows galaxy cluster ACO S520: https://t.co/8NFBOs04xi https://t.co/Z1liBh1bqg

Yesterday, @NASAGoddard welcomed @President_KR Yoon Suk Yeol and @VP Kamala Harris.

The visit included a meeting with Korean-American @NASA employees, like Hubble engineer Jessica Regalado (second from right in group photo from the event): https://t.co/atmHjLTkGO https://t.co/E5AwLX43xd

RT @NASAGoddard:  Congratulations to Goddard's #Webbys winners! 

How @NASAHubble Images Are Made: Webby Winner

@NASAWebb Space Telescope Unfolds the Universe: People's Voice Winner

NASA Webb Telescope Launch through First Images Live Streams: People's Voice Winner
https://t.co/3mj6Nrjotu https://t.co/s3KWipSmKh

About two billion light-years away, a whole cluster of galaxies known as Abell 68 shines.

The massive gravitational field of Abell 68 is strong enough to bend the light paths of more distant galaxies, causing the warped shapes of some galaxies seen here: https://t.co/Sa9K8YCR75 https://t.co/upVBSdyJy8

The Hubble team is thrilled to share that our video “How Hubble Images Are Made” is @NASA’s 2023 Webby-award-winning entry! 

In addition, five other NASA projects received the honor of winning People’s Voice Awards: https://t.co/mGt5AwTEU1 https://t.co/vMREbWSmGh

Happy #WorldPenguinDay! 

This Hubble view of interacting galaxies, known as Arp 142, resembles a penguin with its egg.

In reality, this galactic pair reside about 326 million light-years away in the southern constellation Hydra: https://t.co/epqxpfezbp https://t.co/fcGkgOphJY

RT @NASAGoddard: Happy birthday @NASAHubble!  #OTD in 1990, Hubble launched from @NASAKennedy, beginning the journey that would transform our understanding of the universe.

But did you know Hubble's control center is located at Goddard?   Learn more! https://t.co/qyqnvhuOUY

Happy 33rd birthday, Hubble! 

Hubble began its journey of discovery #OTD in 1990. It’s been over three decades, and the mission continues to amaze the world with its discoveries about our universe.

Take a look back at the incredible science from Hubble’s latest year in orbit! https://t.co/h5TnkFQohS

Take a look 260 million light-years away!

That's the distance to galaxy UGC 678, which shines in this week's #HubbleFriday image.

Find out more about this barred spiral galaxy: https://t.co/qihhHuPoJg https://t.co/ug0XGdW1cT

Explore Hubble's 33rd anniversary image with our senior project scientist, Dr. Jennifer Wiseman!

Learn more about this new image here: https://t.co/lsJgM189m3 https://t.co/JCqjtu6mPo

To mark Hubble’s 33rd anniversary, this new image unveils a cauldron of starbirth! 

NGC 1333 is a star-forming region 960 light-years away. Glowing gasses and pitch-black dust are stirred up and blown around by newly forming stars within the dark cloud: https://t.co/NazfKJq8Lw https://t.co/uHcmgagbyi

#OTD 10 years ago, Hubble shared this infrared view of the Horsehead Nebula!

Harsh ultraviolet glare from a fledgling star near the top ridge of the nebula is slowly evaporating this pillar of hydrogen gas laced with dust.

Find out more: https://t.co/VDedckHHoN https://t.co/qeTiiY7LGG

Hello, cosmic caterpillar!

This #HubbleClassic image shows a light-year-long knot of gas and dust. Its long shape is the result of ultraviolet radiation blasting from bright stars!

IRAS 20324+4057 is in the very earliest stages of becoming a star itself: https://t.co/TiGzUY15nr https://t.co/1m6PTqAtT4

JO204 shines from 600 million light-years away!

The tendrils beneath the galaxy are caused by ram pressure stripping, as it moves against the intergalactic medium between galaxies in a galaxy cluster. More loosely bound gas then strips away: https://t.co/SmWB24Cwtk https://t.co/mFI6wFnoFq

Space potato? 🥔

Thanks to observations from Hubble and the Keck Observatory, astronomers were able to generate a 3D model of the galaxy M87.

By tracking the motion of stars around the galaxy’s center, they determined that the galaxy is potato-shaped: https://t.co/SorD9FWUvr https://t.co/gzcUEwuZXm

Webb can make this same observation in about a tenth of the time as it originally took Hubble!

Its sensitive instruments will provide more insight into the history of our universe and star formation: https://t.co/Kux2udkjS4 https://t.co/kFFeBqTexz

Hubble’s Ultra Deep Field image is one of the most iconic views of our universe, revealing 10,000 galaxies of various ages, colors, shapes, and sizes: https://t.co/CADh24V9YB https://t.co/LvSYGgsTx9

Time to get deep.

The Hubble Ultra Deep Field is an important astronomical resource, showing a core sample of our universe stretching back billions of light-years.

Along with data from Hubble and ground-based telescopes, now @NASAWebb's observations will help scientists!  https://t.co/8Ehg9sM2xI

Butterfly? Hourglass?

Nope! This #HubbleClassic shows a star at the end of its life, casting off its outer layers. 

The double-lobe structure was created as material funneled towards the poles of the star at the center.

Read more about "Hubble 12": https://t.co/0qxflVuemP https://t.co/l9IAUbuH5j

Webb's new view in mid-infrared light reveals never-before-seen details by spatially resolving regions with different gas compositions and revealing what types of dust were formed in those regions. https://t.co/MkXRUxNfe0