NASA Universe✓

Science operations for our Neil Gehrels Swift Observatory have now ended. With the spacecraft orbiting less than 171 miles (275 kilometers) above Earth, atmospheric drag prevents the satellite’s telescopes from steadily gazing at their cosmic targets. 🧵

RT @SpaceApps: Challenge statements are now live!🚀✨ Explore all 14 challenges statements including the background, objectives, and potential considerations designed to guide your approach at a beginner, intermediate, and/or advanced level. Resources for each challenge will be released on Friday, November 13. Choose a challenge today based on your skills, backgrounds, and interest! Start exploring:

RT @NASAScience_: NASA just selected 19 new citizen science proposals! 🔭 What discoveries are on the horizon? From hunting for hidden super Jupiters to tracking habitat changes that affect penguins, seals, and whales, explore the upcoming opportunities for you to help advance NASA science:

RT @NASAGoddard: All treats, no tricks! Grab yourself something sweet: a pixel of @NASARoman's first images. Adopt your own and become part of our bigger picture of the universe, no costume needed!

RT @LearnWithNASA: Get into the Halloween spirit with resources in this week's NASA EXPRESS! 🎃 Find pumpkin carving stencils, listen to haunting sounds from the universe, learn how to be a candy bar geologist, and more! Click, if you dare! 👻

RT @NASAHubble: Cat got your telescope? 🐾 Venture into the Cat's Head Nebula, as seen by Hubble and @NASAWebb. Both telescopes observed the nebula across a wide spectrum of light, revealing complementary data on its cosmic activity:

We've got chills! Is it a ghost ... or an instrument on XRISM, a @JAXA_en-@NASA observatory with @ESA contributions? We’ll go with XRISM! 👻 To measure X-rays, XRISM's Resolve runs at just a fraction of a degree above absolute zero. Learn more:

Do you ever get the feeling you’re being watched? 👁️👄👁️ Even though all of these cosmic objects are millions of light-years away, they can still send shivers down our spines when we find them staring back at us.

Trick or treat? You know what we’re choosing for #NationalChocolateDay! We’ve got a sweet tooth for this chocolatey take on Fermi’s high-energy gamma-ray sky map, made by a scientist who creates confections in her spare time. Which part of our galaxy looks the most delicious?

RT @chandraxray: Ghosted by the universe, just in time for Halloween!🎃 This eerie structure, combining data from NASA's Chandra X-ray Observatory & @NASAWebb, is part of the Carina Nebula, located about 7,500 light years from Earth in our Milky Way galaxy. 👻

RT @NASAScience_: NASA has confirmed the UVEX (UltraViolet EXplorer) mission for launch by January 2031. 🚀 UVEX will map the universe in ultraviolet light, study the evolution of stars and galaxies, and help capture cosmic events tied to gravitational waves. Read more:

RT @NASA: Ahh… blue lagoon 🏖️ This deep-blue sea of gas and dust—called Messier 8 or the Lagoon Nebula—is a hotbed of star formation. The young stars within the nebula emit rays of high-energy light, including X-rays shown in pink by @chandraxray.

RT @NASAGoddard: Eye see you 👁️ The sonification of the Helix Nebula scans from left to right, where redder colors correspond with lower pitches while bluer colors are associated with higher pitches. It has been called “The Eye of Sauron" for its uncanny and all-seeing appearance.

RT @NASARoman: It's the final countdown 🎶 We're one step closer to Roman's first images! The observatory is now fully functional and the team is performing their final checks and calibrations before starting science observations.

The warm embrace of a star could be the stuff of nightmares. 😱 Small stars like our Sun puff out into red giants at the ends of their lives, engulfing anything orbiting too close, but brown dwarf WD 1202-024 B may have survived just such a hug. #MondayMotivation

RT @NASA_Marshall: You're looking at a cosmic collision zone 🚧 This is II Zw 096, a chaotic, dust-shrouded system of merging galaxies forming stars at a furious rate. Systems like this one show us how powerful galaxy collisions shaped the early universe. More images >>

RT @chandraxray: Remember that time when you spotted the remains of an exploded star that no one had identified before and Chandra followed up, revealing superheated debris? Together we helped scientists understand one of the youngest remnants in our galaxy, G306.3. We'll miss you, Swift!💜

RT @NASAScience_: The universe has a musical side. 🎶 Meet the Treble Clef, an unusual radio structure stretching more than 2 million light-years across space. Its shape is striking, but the science behind it is even more fascinating. Studying structures like this can reveal how galaxy clusters interact and evolve. In this composite, radio emission appears in red, X-rays in blue, and infrared data in white:

RT @NASAHubble: We know our universe is expanding. But telescopes like Hubble measure an expansion rate that’s faster than predicted, based on models of the early universe. Here’s how @NASARoman will join the quest on cracking the case of this “Hubble Tension” ⬇️

RT @NASAHubble: A gorgeous galaxy marks the spot in this image, but the real treasure is the gravitational lens in the lower-right corner, where a distant background galaxy is being magnified and distorted by the gravity of a closer galaxy:

Since launching on November 20, 2004, Swift observed: More than 2,000 gamma-ray bursts More than 1,400 supernovae Stars being shredded by black holes Asteroids and comets … and so much more!

RT @NASAWebb: Double, double toil and trouble; Fire burn and cauldron bubble 🧙‍♀️ This turbulent cauldron of star formation, N159, resides about 161,000 light years away in the Large Magellanic Cloud, one of the satellite galaxies orbiting our Milky Way.

Data from Swift’s three telescopes has contributed to about 7,000 published scientific papers. Swift leaves behind a treasure trove of 12 TB of data — equivalent to about 600 HD movies — that astronomers will continue to comb through for years to come.

RT @NASA_Marshall: For 22 years, NASA’s Swift observatory has studied the universe's most powerful explosions and teamed up with other telescopes like Chandra and IXPE for breakthrough discoveries. Even as its mission winds down, its science won’t! Explore its legacy:

Doing some pumpkin carving this weekend? Make space on your front porch for some out-of-this-world jack-o’-lanterns! 🎃 Check out these stencils featuring some cosmic cartoon characters, @NASAWebb, @NASARoman, and more. Download them here:

LISA is an @ESA-led mission in partnership with @NASA that will detect and measure ripples in space-time called gravitational waves. LISA’s three spacecraft will fly in a triangular formation that follows Earth as it orbits the Sun. What object could fill this triangle?

RT @NASAHubble: Even galaxies need to vent. Because of a prior gravitational interaction with a neighboring galaxy, M82 undergoes super intense star formation. This image shows its "exhaust system" in action, regulating the galaxy's growth by venting gas outwards. ⬇️

Each arm of this triangle will be about 1.6 million miles long, big enough that our Sun would snugly fit inside. Gravitational waves from cosmic events will ripple across the triangle, slightly changing the distances between the spacecraft. Meet LISA:

RT @NASAAmes: A cosmic butterfly 🦋 In this shimmering view captured by @NASAHubble, the complexities of the Twin Jet Nebula are seen in striking detail, with lobes of material stretching outward while jets of gas stream from a central star system.