To help @NASA prepare for future lunar missions, scientists used Hubble to study our Moon in 2005.

Today is International #ObserveTheMoon Night, and you can participate in Moon observations, too!

Look up tonight! Here’s how to get involved: https://t.co/FNxTF9Zocv https://t.co/LQVt0E29pS

Tomorrow is International #ObserveTheMoon Night!   

Hubble has made exciting observations of our Moon, including this glimpse at the Crater Tycho. What will you see? Learn more at https://t.co/H8iU9vrM9U! 

About the image: https://t.co/8XvWPHrboD https://t.co/ubtGpsIkw1

#HubbleFriday Everything you see in this Hubble image makes up only a tiny fraction of this galaxy’s bulk. 

NGC 5585 has far more dark matter than similarly sized galaxies. Dark matter can’t be directly observed, and what it is remains a mystery: https://t.co/Y2lIgfmpmm https://t.co/l88dXgAnuG

https://t.co/yoKBHf0l2Z

We’re taking a trip back in time for this #HubbleTrivia. 

When was the last space shuttle servicing mission to Hubble?

Watch the video in the thread to find out if your guess is correct!

Thanks to a new project from @chandraxray, we can “listen” to the Pillars of Creation! 

This image combines observations from Hubble and Chandra. Through sonification, we can hear its data transformed into sounds.

For more sonifications: https://t.co/qG23TYZVaR https://t.co/eqLTtRcHJ1

#HubbleClassic Fly through tangled filaments of glowing gases in the Veil Nebula, the remnant of a star that exploded thousands of years ago.

This scientific visualization is based on Hubble observations of the nebula & was released 5 years ago this week: https://t.co/RLJchhHQfW https://t.co/5KrQuP4edE

Your turn! Screenshot this graphic and fill it out to create your exoplanet name. 

For more information about how exoplanets are named, visit https://t.co/M774ygSKYD.

#MyExoplanetName https://t.co/XoqHe1is9O

We’ll play! Here’s Hubble’s exoplanet name, using our namesake Edwin Hubble and launch date of April 24, 1990. 

Hubble has helped make fascinating discoveries about worlds beyond our Sun!: https://t.co/u4N5QZ1KXJ https://t.co/DKOIRSdTkk https://t.co/gBhpx1vFIz

RT @NASAEarth: As @NASAHubble captured new images of storms on Jupiter, @NASA satellites are keeping an eye on an active Atlantic hurricane season. Hurricane #Sally, seen here, dropped up to 16 inches of rain in some areas as it made landfall.
https://t.co/91dCMEOGaz
https://t.co/j6sxBojaf2 https://t.co/HJjlknm04J

#HubbleFriday The twisting patterns created by the spiral arms of the galaxy NGC 2835 create the illusion of an eye. This is a fitting description, since it’s located near the head of the constellation Hydra, the water snake. 

Learn more: https://t.co/etpmYP6nqW https://t.co/ttkPaWvXLd

Hubble's new images of Jupiter capture the giant planet’s stormy atmosphere.

The Great Red Spot, a storm big enough to swallow Earth, is still shrinking. Beneath it, “Red Spot Jr.” continues to rage and change color, while a new storm brews in the north: https://t.co/Zg6i8mv61S https://t.co/ySyVuemtcb

https://t.co/rNl0imOZKt

How about some #HubbleTrivia? Think about this one:

How many times does Hubble orbit Earth in one day?

Watch the video in the thread to find out if your guess is correct.

#HubbleClassic Normal spiral galaxies appear flat when viewed from the side. But the disk of this unusual edge-on galaxy, called ESO 510-G13, is warped. The distortion is likely caused by the gravitational pull of another galaxy: https://t.co/n4Aq23VEdN https://t.co/eXubxaHRnX

#HubbleFriday Colorful stars pack together in this Hubble image of globular cluster NGC 1805.

This tight grouping of thousands of stars is located near the edge of the Large Magellanic Cloud, a satellite galaxy of our own Milky Way: https://t.co/0DVn92ZWna https://t.co/0Kgp8DOpWG

Everything that makes up stars and planets (and humans!) is only a tiny percentage of the universe’s contents.

Dark matter is the invisible scaffolding of our universe, and a new Hubble study shows we still have much to learn about this strange substance: https://t.co/7A5mQYWUKC https://t.co/Bfcrg0qUj2

RT @NASAGoddard: The blue and orange stars of the faint galaxy named NGC 2188 sparkle in this image taken with @NASAHubble. 

NGC 2188 is estimated to be just half the size of our Milky Way, at 50,000 light-years across, and it is situated in the constellation of Columba. https://t.co/S0aVwc6kWR https://t.co/CotT5JI6ym

https://t.co/VWgZsKWLlF

Pop quiz! Can you answer this #HubbleTrivia question?

What has Hubble helped to reveal about the expansion of the universe?

Watch the video in the thread to find out if your guess is correct!