Take all the stars, all the planets and everything we can see and detect with telescopes and add... View Mission

For over twenty years, the Kuiper Airborne Observatory (KAO) was operated as the world's only... View Mission

The Keck Interferometer was a ground-based component of NASA's Exoplanet Exploration Program. At... View Mission

The Kepler Mission, a NASA Discovery mission, was designed to survey a region of the Milky Way... View Mission

The Large Binocular Telescope Interferometer (LBTI) is part of NASA's overall effort to image... View Mission

In November of 1998 and 1999, Earth crossed the fresh ejecta of comet Tempel -Tuttle, resulting... View Mission

A new ESA LISA mission was selected in 2017 for ESA's L3 launch opportunity. LISA is a space-... View Mission

The Space Technology 7 (ST-7) Disturbance Reduction System (DRS) is flying aboard the European... View Mission

The Neutron star Interior Composition ExploreR (NICER) is a NASA Astrophysics Explorer Mission... View Mission

The Nuclear Spectroscopic Telescope Array is an Explorer mission that allows astronomers to... View Mission

The Orbiting Astronomical Observatory (OAO) was a series of four satellites launched by NASA... View Mission

The ORFEUS-SPAS II mission followed the ORFEUS-SPAS I mission flown in 1993, motivated by... View Mission

The ESA-led Planck mission, formerly called COBRAS/SAMBA and renamed in honor of the German... View Mission

This mission will study dark energy, measure the history of cosmic acceleration, search for... View Mission

ROSAT, the ROentgen SATellite, was an X-ray observatory developed through a cooperative program... View Mission

Over the course of its 16 year mission, NASA's Rossi X-ray Timing Explorer (RXTE)... View Mission

SAC-B was an international cooperative project between NASA and Argentina's National Commission... View Mission

SIM/SIM-Lite was not recommended for development this decade by the Astro2010 Decadal Survey. As... View Mission

SOFIA is the largest airborne observatory in the world, and makes observations that are... View Mission

The Spitzer Space Telescope (formerly SIRTF, the Space Infrared Telescope Facility) was launched... View Mission

Suzaku, formerly known as Astro-E2 or NeXT, is Japan's fifth X-ray astronomy mission, and was... View Mission

The Submillimeter Wave Astronomy Satellite (SWAS) was launched from a Pegasus-XL vehicle into... View Mission

Swift is a first-of-its-kind multi-wavelength observatory dedicated to the study of gamma-ray... View Mission

The primary mission objective for TESS is to survey nearby bright stars near the earth for... View Mission

The Terrestrial Planet Finder (TPF) was a mission concept previously under study by NASA. It... View Mission

The James Webb Space Telescope is an infrared-optimized space telescope with a large mirror, 6.5... View Mission

The Wide-field Infrared Explorer (WIRE) was a small satellite carrying a cryogenically cooled... View Mission

Launched in December of 2009, the WISE spacecraft spent over a year... View Mission

The WMAP mission addressed fundamental questions in cosmology: What is the geometry of the... View Mission

XMM-Newton, the X-ray Multi-Mirror Mission, is the second cornerstone of the Horizon 2000... View Mission

XRiSM will investigate celestial X-ray objects in the Universe with high-throughput imaging and... View Mission