Advanced Composition Explorer (ACE)
The ACE spacecraft studies the stream of accelerated particles that bombard Earth which come from
the Sun and other interstellar and galactic sources.
IMAGE
The first satellite mission dedicated to imaging the Earth's magnetosphere.
Polar
Polar passes over Earth's north and south poles in order to study the energy and particles
flowing into and out of the magnetosphere and producing the aurora.
SOHO: The Solar and Heliospheric Observatory
SOHO studies the structure of the Sun, its atmosphere and the origin of the solar wind.
TRACE: Transition Region and Coronal Explorer
TRACE is part of NASA's Small Explorer (SMEX) mission to image the solar corona and transition
region of the Sun.
Ulysses
The Ulysses Mission is the first spacecraft to explore interplanetary space at high solar latitudes.
WIND
WIND studies the physical and chemical properties of the solar wind.
YOHKOH
The Yohkoh satellite is an observatory for studying X-rays and gamma-rays from the Sun.
