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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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Earth-like Exoplanets

5

TRACERS

1

NASA+

4

PACE (Plankton, Aerosol, Cloud, Ocean Ecosystem)

25

Galaxies, Stars, & Black Holes Research

37

Human Dimensions

6

1

BurstCube

4

Robert L. Satcher Jr.

1

Vegetable Production System (VEGGIE)

1

Gemini

2

27

Apollo 9

2

Planetary Defense Coordination Office

24

Carlos I. Noriega

1

15

3

LISA (Laser Interferometer Space Antenna)

3

1

Stellar-mass Black Holes

4

Dragonfly

8

Terra

5

MOSAICS

1

1

Fission Surface Power (FSP)

2

Wildfires

15

Gravitational Lensing

5

Aerosols

5

Auroras

14

Radial Velocity

2

Snow

5

Joint Polar Satellite System (JPSS)

1

Mark T. Vande Hei

1

COSI (Compton Spectrometer and Imager)

1

Student Opportunities

1

Emission Nebulae

2

Ultra-Efficient Aviation

2

NEOWISE

8

People of Space Operations

1

15

Supersonic Flight

28

Europa Clipper Resources

8

Nicole Aunapu Mann

3

Virgil I. Grissom

2

Glenn Research Center

216

Artemis 4

22

Polarimeter to Unify the Corona and Heliosphere (PUNCH)

10

Scientific Balloons

15

Ionosphere

9

Lunar Reconnaissance Orbiter (LRO)

17

COBE (Cosmic Background Explorer)

1

STS-125

1

193

The Solar System

145

NASA Headquarters

112

Origin & Evolution of the Universe

17

1

xEVA & Human Surface Mobility

9

Helios 1

1

Alan B. Shepard Jr.

1

Black History Month

7

Research Opportunities in Space and Earth Sciences (ROSES)

4

Solar System Exploration Research Virtual Inst.

3

Kennedy Space Center

236

Mars Sample Return (MSR)

13

1

Robotics

15

Space Launch System (SLS)

96

Launch Services Office

8

Matthew Dominick

5

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

22

Deimos

1

Technology

94

Exoplanets

79

Michoud Assembly Facility

33

Oceans

40

Exploration Park

2

Water & Energy Cycle

5

GRACE (Gravity Recovery And Climate Experiment)

6

Advanced Air Vehicles Program

24

Astronauts

97

Psyche Asteroid

7

SimLabs

2

Jessica Watkins

3

Magnetars

2

Commercial Supersonic Technology

12

STS-64

2

3

Tracking and Data Relay Satellite (TDRS)

1

National Advisory Committee for Aeronautics (NACA)

6

Pamela A. Melroy

8

Galaxy clusters

16

Human Health and Performance

28

Anne C. McClain

4

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