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Goddard Space Flight Center,
located in Greenbelt, Maryland, is dedicated to furthering our
knowledge of the Earth and its environment, the solar system,
and the universe, through space observations. By developing new
technologies to advance this mission, the Center strives to expand
our understanding of our planet and beyond.
To support NASA's Space Science
Enterprise, Goddard leads missions in space-based physics and
astronomy that foster research programs through a broad variety
of flight opportunities. The Center also promotes the development
of advanced technology designed to enhance scientific capabilities
at an affordable cost. Goddard space scientists seek answers
about the composition and variability of stellar objects like
black holes and exploding stars, and how the universe formed
and evolved. The Center also contributes to the quest to learn
how planetary systems are born and evolve. Goddard missions help
researchers study the nature of the Sun's interaction with its
surroundings and Earth, and determine the physical properties
of the planets and interplanetary space.
NASA's Hubble Space Telescope
is managed by and operated from Goddard Space Flight Center.
In its first 10 years, the 12.5-ton Earth-orbiting observatory
has studied 13,670 celestial objects, made 271,000 individual
observations, and returned 3.5 terabytes of scientific data.
Hubble's scientific hall of fame includes the current deepest
view of the universe in visible light; images of the majestic
birth of stars in spectacular stellar clouds; observations of
extraordinary arcs, shells, and ribbons of glowing gas sculpted
by the deaths of stars much like our Sun; unique records of mega-megaton
blasts produced by comet fragments falling into the cloud tops
of Jupiter; a map of the surface of distant Pluto; and evidence
that galaxies may have been built up from smaller objects early
in the history of the universe.
Goddard-operated space observatories
continue to make discoveries about the Sun and advance our ability
to predict the effects of solar storms on the Earth. Among the
important observatory contributors are the Solar and Heliospheric
Observatory (SOHO), a cooperative project being carried out by
the European Space Agency and NASA; and Goddard's WIND and Transition
Region and Coronal Explorer (TRACE) satellites.
From the local weather to the
larger environment, our home planet changes every day. These
changes affect our quality of life, our health, and our economy.
Since the first days of observing Earth from space in the early
1960s, NASA and Goddard Space Flight Center have been pioneers
in helping scientists, policymakers, and the general public gain
a better understanding of how and why these changes occur. This
research, and the new technology that pushes it forward, has
matured to a point where we can begin to understand the details
of how Earth's land, atmosphere, oceans, ice, and life interact
with each other, both in local communities and across vast regions
of the globe.
Goddard scientists and engineers
contribute daily to NASA's Earth Science Enterprise, which consists
of research studies, satellites and aircraft missions, and advanced
computer networks that transmit data and resulting information
to a variety of users across the world.
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Fountains of multimillion-degree, electrified gas
in the Sun's atmosphere revealed the location where the solar
atmosphere is heated to temperatures 300 times greater than
the Sun's visible surface. This was discovered while observing
the gas fountains with NASA's Transition Region and Coronal
Explorer (TRACE) spacecraft. |
A new generation
of Earth science--one that studies the Earth's land, oceans,
air, ice, and life as a total global system--began with a picture
perfect launch of the Terra spacecraft from Vandenberg Air Force
Base, California. Terra is the "flagship" for the Earth
Observing System (EOS) series of satellites, a precedent-setting
program in the emerging field of Earth System Science.
Goddard facilities, especially
Wallops Flight Facility, Virginia, play a large role in many
upcoming NASA projects. The High Energy Solar Spectroscopic Imager
(HESSI) will explore the basic physics of particle acceleration
and energy release in solar flares. The Thermosphere, Ionosphere,
Mesosphere, Energetics, and Dynamics (TIMED) spacecraft will
conduct a global study of a critical region in Earth's atmosphere.
The mission will study the influences of the Sun and humans on
the least explored and understood region of Earth's atmosphere.
The QuikTOMS (Total Ozone Mapping Spectrometer) mission is designed
to continue daily mapping of the global distribution of total
column atmospheric ozone. Continuous observation of global ozone
is critical in order to monitor the expected recovery of ozone
as levels of chlorofluorocarbons decrease from their current
maximum as a result of the Montreal Protocol limits.
The Big Bang theory is based
on Albert Einstein's general theory of relativity and the 1929
discovery that the universe is expanding. This expansion implies
the universe was denser and hotter in the distant past, and was
able to produce the lightest chemical elements such as hydrogen
and helium. The Big Bang theory correctly predicts the relative
amounts of these light elements. It also predicts that the universe
should be bathed in a faint afterglow of radiation. The Cosmic
Background Radiation appears as a glow that is remarkably uniform
in all directions in the sky ("isotropic"), though
the Cosmic Background Explorer (COBE) discovered very faint non-uniformities
("anisotropy") in this glow in 1992. The Microwave
Anisotropy Probe (MAP) satellite will produce a much more detailed
picture of the early universe than COBE did. This information,
which is recorded in the Cosmic Background Radiation, will allow
astronomers to address these key cosmological questions.
Formerly called Earth Observing
Spacecraft PM-1, Aqua will observe changes in the Earth's radiation
energy budget, together with measurements of changes in land/ocean
surface and interactions with the atmosphere through the exchanges
of energy, carbon, and water.
NASA's Tracking and Data Relay
Satellite-I (TDRS) is next in a series of communications satellites
that will serve as the sole means of continuous, high-data-rate
communications with the Space Shuttle, the International Space
Station, and with dozens of scientific satellites in low-Earth
orbit. TDRS-I is the second of three satellites that will help
replenish NASA's aging TDRS fleet.
The Ice, Cloud, and land Elevation
Satellite, or ICESAT, will accurately measure the elevations
of the Earth's ice sheets, clouds, and land, as well as answer
fundamental questions about the growth or shrinkage of the Earth's
polar ice sheets and the future rise or fall of global sea levels.
Goddard will continue to provide
us with innovative research with some of their future initiatives.
NASA's Ultra Long Duration Balloon (ULDB) program is developing
a revolutionary research balloon that could open a new era in
scientific research. The full-scale ULDB is the largest single-cell,
super-pressure (fully sealed), balloon ever flown. The Solar
Radiation and Climate Experiment (SORCE) will continue the precise
measurement of total solar irradiance.
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An
artist's concept of NASA's Ultra Long Duration Balloon (ULDB),
a revolutionary new balloon system capable of supporting scientific
observations above 99 percent of the Earth's atmosphere for
durations approaching 100 days. |
The EOS
Aura mission will help answer vital science questions. Is the
Earth's ozone layer recovering? Is air quality getting worse?
How is Earth's climate changing? The EOS Aura instruments have
the unique and complementary abilities to provide data about
the Earth's atmosphere on a global scale. EOS Aura is the third
in a series of Earth Observing Satellites to study atmospheric
chemistry. Through its Earth Observing System efforts, Goddard
is generating new remote sensing and spacecraft technologies
to be used for a joint effort involving NASA, the National Oceanic
and Atmospheric Administration (NOAA), and the Department of
Defense. The National Polar-orbiting Operational Environmental
Satellite System Preparatory Project (NPP) could potentially
improve the capabilities of future polar-orbiting weather satellites
to satisfy both civil and national security requirements for
meteorological, oceanographic, climatic, and space environmental
data. The Global Precipitation Mission (GPM) is a follow-up to
the Tropical Rainfall Measuring Mission (TRMM). GPM is expected
to lead to significant improvements in the forecasting of extratropical
and tropical cyclones.
Goddard is leading the development
of the Next Generation Space Telescope (NGST); a new type of
observatory with capabilities that will surpass those currently
available in existing ground-based or space telescopes. NGST
will employ some of the most advanced optical systems ever placed
into space to observe the first stars and galaxies in the universe.
The Solar Terrestrial Probe Program
science objectives are directly tied to the quests in the Sun
Earth Connection theme. They describe the system behavior of
the magnetic variable star, our Sun, and its interaction with
the entire solar system. Living with a Star (LWS) is a NASA initiative
that addresses the effects of solar variability on life and society,
including human technology, humans-in-space, and terrestrial
climate.
The Gamma-ray Large Area Space
Telescope, or GLAST, is a future high-energy gamma-ray mission,
which promises to be a significantly advanced tool for answering
these questions and others. Constellation-X is a team of powerful
x-ray telescopes that will orbit closely to each other, like
a constellation of tiny stars, and work in unison to simultaneously
observe the same distant objects. The Laser Interferometer Space
Antenna (LISA) consists of three spacecraft flying 5 million
kilometers apart in the shape of an equilateral triangle, to
observe gravitational waves from galactic and extra-galactic
binary systems. Swift is a three-telescope space observatory
for studying gamma ray bursts. Swift will have the unique ability
to rotate in orbit and point its gamma ray telescope, x-ray telescope,
and ultraviolet/optical telescope at gamma ray bursts within
minutes of the burst's first appearance.
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