Imagine the Universe!
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Advanced Science
Take a deeper, more advanced look at the universe and the ways that scientists study it. For introductory articles, try the Science page.

Advanced Fundamentals

Get more advanced explanations of the concepts and principles used to study and understand the universe.

The Electromagnetic Spectrum X-ray Astronomy
X-ray Generation Lightcurves, Spectra, and Images
Gamma-Ray Astronomy Gamma-Ray Generation
Multiwavelength Astronomy  

Cosmic Objects

Get a closer look at the objects that make up our universe, from binary systems to obscure dark matter.

Stars Black Holes
Active Galaxies & Quasars The Sun
White Dwarfs X-ray Transients
Binary Systems Pulsars
Dark Matter Supernovae
Cataclysmic Variables Diffuse Background
Supernova Remnants Cosmic Rays
Gamma-Ray Bursts  

Cosmological Questions

Put your astrophysics knowledge to work! Delve deeper into some of the questions that astronomers and astrophysicists are trying to answer right now.

Matter in Extreme Conditions The Lumpy Universe
Validation of Relativity Development of Elements in the Universe
Nature of Dark Matter Superstrings

The Search for Answers

A more advanced look at the tools and methods scientists use to study the high energy universe

X-ray Telescopes Spectral Analysis
Greater Collection Area X-ray Detectors
Timing Analysis Higher Resolution
Gamma-Ray Telescopes & Detectors Exploring New Wavelengths

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Nicholas White (Director), within the Exploration of the Universe Division (EUD) at NASA's Goddard Space Flight Center.

The Imagine Team
Project Leader: Dr. Jim Lochner
Curator:Meredith Bene
Responsible NASA Official:Phil Newman
All material on this site has been created and updated between 1997-2005.