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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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36

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31

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146

24

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1

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2

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5

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2

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2

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1

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4

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17

9

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3

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3

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4

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5

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1

5

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3

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13

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3

Pluto

2

1

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6

1

11

Commercial Space Division

1

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4

103

TESS (Transiting Exoplanet Survey Satellite)

19

4

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2

STS-41D

1

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1

322

National Space Council Users' Advisory Group (NSpC UAG)

1

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25

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11

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18

1

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15

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14

132

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43

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2

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2

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151

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6

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1

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27

11

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3

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26

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1

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28

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23

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2

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29

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8

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11

1

1

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2

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4

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1

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489

8

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1

19

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5

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5

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1

1

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2

1

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1

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1

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17

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184

William R. Pogue

1

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11

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59

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14

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1

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3

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9

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4

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15

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35

2

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1

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3

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2

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10

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1

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195

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1

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7

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22

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1

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1

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