Cosmic Rays | Simple Site

Fermi Gamma-Ray Space Telescope

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NASA’s Fermi Mission Uncovers Possible Sibling Supernova Remnants

A new study of two supernova remnants, the debris left behind after stars explode, suggests the explosions came from stellar siblings that once orbited each other. The first star’s detonation sent its binary companion hurtling through space, and then, after traveling for thousands of years, the surviving star blew up too.

Posted June 17, 2026

Chandra X-Ray Observatory

Goddard Space Flight Center

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XRISM (X-Ray Imaging and Spectroscopy Mission)

NASA-JAXA’s XRISM Telescope Clocks Hot Wind of Galaxy M82

For the first time, astronomers have directly measured the speed of superheated gas billowing from a cauldron of stellar activity at the heart of M82.

Posted March 25, 2026

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25

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1

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5

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23

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6

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114

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8

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1

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43

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22

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75

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7

5

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14

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3

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2

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2

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6

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29

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3

54

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10

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2

13

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10

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22

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42

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2

4

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45

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28

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18

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27

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19

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6

11

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63

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220

54

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46

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32

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4

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263

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