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X-ray Signal Points to Destroyed Planet, Chandra Finds

A planet may have been destroyed by a white dwarf at the center of a planetary nebula — the first time this has been seen. As described in our latest press release, this would explain a mysterious X-ray signal that astronomers have detected from the Helix Nebula for over 40 years. The Helix is a […]

Posted March 4, 2025

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Charles F. Bolden Jr.

1

6

Doing Business with NASA

5

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1

Matthew Dominick

5

4

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18

73

GRACE-FO (Gravity Recovery and Climate Experiment Follow-on)

7

Air Traffic Management - Exploration

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Barry E. Wilmore

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15

Jasmin Moghbeli

11

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15

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3

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5

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NASA+

6

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1

362

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1

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2

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19

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17

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4

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6

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12

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7

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408

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2

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4

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29

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1

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19

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3

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10

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20

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11

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1

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26

NEOWISE

8

54

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12

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5

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3

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3

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4

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8

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18

Io

5

Low Boom Flight Demonstrator

27

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15

32

125

Sustainable Flight Demonstrator

6

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1

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4

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6

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1

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1

5

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6

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5

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1

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6

4

Game Changing Development Program

37

36

Armstrong Flight Research Center

143

Outside the Classroom

10

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2

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6

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2

Charles O. Hobaugh

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2

Donald R. Pettit

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18

Nicole Aunapu Mann

3

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2

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1

12

Air Traffic Management and Safety

2

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5

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98

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1

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5

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10

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1

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155

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5

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135

STS-107

2

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7

Mars Campaign Development Division

2

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6

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12

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1

Gemini VI

1

William A. Anders

2

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7

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5

People of Armstrong

4

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3

4

Learning Resources

147

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20

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10

3

2

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10

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3

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17

8

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4

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6

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10

Johnson's Mission Control Center

6

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1

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2

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1

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