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Nancy Grace Roman Space Telescope

Galaxies, Stars, & Black Holes

Galaxies, Stars, & Black Holes Research

General

Goddard Space Flight Center

Origin & Evolution of the Universe

Science & Research

How NASA’s Roman Mission Will Hunt for Primordial Black Holes

Astronomers have discovered black holes ranging from a few times the Sun’s mass to tens of billions. Now a group of scientists has predicted that NASA’s Nancy Grace Roman Space Telescope could find a class of “featherweight” black holes that has so far eluded detection. Today, black holes form either when a massive star collapses […]

Posted May 7, 2024

Astrophysics Division

Dark Matter & Dark Energy

E-Books

Hubble Space Telescope

Science Mission Directorate

NASA’s New Hubble E-Book Spotlights Universe’s Best-Kept Dark Secrets

NASA’s Hubble Space Telescope team has released a new downloadable e-book in the Hubble Focus series, called “Hubble Focus: The Dark Universe.” This e-book highlights the mission’s recent discoveries about two mysterious components of our universe, known as dark energy — an unexplained cosmic pressure that’s speeding up the universe’s expansion — a

Posted April 6, 2024

Euclid

James Webb Space Telescope (JWST)

Nancy Grace Roman Space Telescope

SPHEREx (Spectro-Photometer for the History of the Universe and Ices Explorer)

Stellar Evolution

What is Dark Energy? Inside our accelerating, expanding Universe

Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its expansion started to speed up, […]

Posted February 5, 2024

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26

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3

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64

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9

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2

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5

1

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23

4

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15

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WISE (Wide-field Infrared Survey Explorer)

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4

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9

STS-64

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4

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95

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5

282

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17

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24

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8

13

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49

Russell L. Schweickart

2

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20

4

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127

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30

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276

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1

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2

2

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54

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54

1

Earth Day

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11

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8

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25

G. Reid Wiseman

9

Hubble Space Telescope

189

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