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New Hubble Constant Measurement Adds to Mystery of Universe's Expansion Rate

In a new paper accepted for publication in The Astrophysical Journal, University of Chicago astronomer Wendy Freedman and her team announced a new measurement of the Hubble constant using a kind of star known as a red giant. Their new observations,...
16-Jul-2019 8:00 AM EDT Add to Favorites

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Hubble Uncovers Black Hole Disk that Shouldn't Exist

Peering deep into the heart of the majestic spiral galaxy NGC 3147, Hubble researchers uncovered a swirling gas disk precariously close to a black hole weighing about 250 million times the mass of our Sun. The surprise is that they thought the black...
11-Jul-2019 10:00 AM EDT Add to Favorites

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What Makes a Good Planet Turn Bad? Find Out in Latest "Habitable Zone" Video

What can turn a seemingly perfect ocean-rich planet into an uninhabitable desert wasteland? Two future space explorers aim to find out in "The Habitable Zone: Scorched Earth Enigma," a science-grounded sci-fi video from the NASA's Universe of...
9-Jul-2019 11:00 AM EDT Add to Favorites

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STScI to Design Science Operations for New Panoramic Space Telescope

NASA has awarded a contract to the Space Telescope Science Institute (STScI) in Baltimore, Maryland, for the Science Operations Center (SOC) of the Wide Field Infrared Survey Telescope (WFIRST) mission. WFIRST is a NASA observatory designed to...
2-Jul-2019 5:00 PM EDT Add to Favorites

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Atmosphere of Mid-Size Planet Revealed by Hubble and Spitzer

Astronomers enlisted the combined multi-wavelength capabilities of NASA's Hubble and Spitzer space telescopes to assemble for the first time a "fingerprint" of the chemical composition of exoplanet GJ 3470 b's atmosphere, and found it to be mostly...
2-Jul-2019 11:00 AM EDT Add to Favorites

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Hubble Captures the Galaxy's Biggest Ongoing Stellar Fireworks Show

The giant star Eta Carinae has been prone to violent outbursts, including an episode in the 1840s when ejected material formed the bipolar bubbles seen here. This new ultraviolet- and visible-light view from the Hubble Space Telescope shows the...
1-Jul-2019 10:00 AM EDT Add to Favorites

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NASA’s Upcoming Webb Telescope Will Survey Saturn and Titan

Among the most intriguing solar-system targets Webb will study after its launch in 2021 are Saturn and its moon, Titan. Saturn’s weather undergoes seasons like Earth, except that they last 7-1/2 years. Occasionally, storms encircle the planet,...
20-Jun-2019 8:05 AM EDT Add to Favorites

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A Pair of Fledgling Planets Directly Seen Growing Around a Young Star

Astronomers have directly imaged two exoplanets that are gravitationally carving out a wide gap within a planet-forming disk surrounding a young star. This is only the second multi-planet system to be photographed.
3-Jun-2019 11:00 AM EDT Add to Favorites

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Space Telescope Science Institute (STScI): Nearly 400 years after Galileo first observed the heavens through a telescope, we continue to seek answers to age-old questions about the universe. And while the technology has evolved over the centuries, the inquiry remains essentially the same: What's out there, where did it come from, and what does it mean?

At the Space Telescope Science Institute (STScI), we're working hard to study and explain the once-unimaginable celestial phenomena now made visible using Hubble's cutting-edge technology. In the course of this exploration we will continue to share with you the grace and beauty of the universe, because the discoveries belong to all of us.


Ray Villard
Hubble Space Telescope News Chief


Christine Pulliam
Head, News Office


Donna Weaver
Science Writer


Cheryl Gundy
News Production Team Lead


Zolt Levay
Imaging Resource Lead


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