Missions in Operating Phase for How do planets, stars, galaxies and cosmic structure come into being?

How do planets, stars, galaxies and cosmic structure come into being? Missions for 'operating' phase.

In order to understand how the Universe has changed from its initial simple state following the Big Bang (only cooling elementary particles like protons and electrons) into the magnificent Universe we see as we look at the night sky, we must understand how stars, galaxies and planets are formed.

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Launch Date	A-Z	Phase
19990724 July 23, 1999	Chandra Chandra explores the hot turbulent regions in space with images 25 times sharper than previous x-ray pictures. Chandra is performing detailed studies of black holes,...	Operating
20030429 April 28, 2003	GALEX Galaxy Evolution Explorer (GALEX)  is exploring the origin and evolution of galaxies and the origins of stars and heavy elements, and is also conducting an all-sky...	Operating
19900425 April 24, 1990	Hubble Space Telescope Hubble Space Telescope (HST), an ultraviolet, visible and infrared orbiting telescope, has expanded our understanding of star birth, star death, and galaxy evolution, and has...	Operating
19951231 December 30, 1995	RXTE Rossi X-ray Timing Explorer studies variability over time in the emission of X-ray sources, with moderate spectral resolution. This time behavior is a source of important...	Operating
20030826 August 25, 2003	Spitzer Spitzer Space Telescope (formerly known as SIRTF) conducts infrared astronomy from space. From an unusual heliocentric orbit designed to keep its sensitive instruments away...	Operating
20050710 July 10, 2005	Suzaku (Astro-E2) Suzaku (formerly Astro-E2) provides powerful tools to use the Universe as a laboratory for unraveling complex, high-energy processes and the behavior of matter under extreme...	Operating
20010701 June 30, 2001	WMAP Wilkinson Microwave Anisotropy Probe (WMAP)  produced the earliest “baby picture” of the universe, showing the minute temperature variations within the microwave light...	Operating
19991211 December 10, 1999	XMM-Newton XMM-Newton is an X-ray astrophysics observatory that enables astronomers to conduct sensitive X-ray spectroscopic observations of a wide variety of cosmic sources. This...	Operating

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How do planets, stars, galaxies and cosmic structure come into being? Missions for 'operating' phase.