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Galaxies Over Time
The Star Lifecycle
The Webb Mission
Mission & Launch Quick Facts
Telescope Quick Facts
Science Quick Facts
Who Is James Webb?
Second administrator of the National Aeronautics and Space Administration, 1961–1968
Fast facts about the James Webb Space Telescope
Webb's Big Chill
An infrared telescope comes with an inherent design problem—it gives off heat. To capture infrared light from cosmic objects, the James Webb Space Telescope will have to be kept as cold as possible.
Doors to the Universe
Think how much more productive you could be if you could study a book, check your computer, watch the television, and consult a newspaper all at once.
What Did the Young Universe Look Like?
The era of the universe called the Dark Ages is as mysterious as its name implies.
Is the Milky Way Unique?
It is just one of billions of galaxies, but the Milky Way is our galaxy, our home in the universe.
How Does Webb See Back in Time?
Looking out in space is like looking back in time.
How Are Stars Born?
Stars form from collapsing clouds of gas and dust.
How Do Planets Get Water?
The Webb telescope will trace the origins of water in developing planetary systems.
How Earth-like Are Exoplanets?
The Webb telescope will look for answers within the disks of dust and gas that surround many young stars in our galaxy.
How Can Webb Study the Early Universe?
When astronomers use a telescope to look further away, they are also looking back in time.
Webb's Science Tools
Each instrument has unique features that will allow astronomers to study a variety of astronomical objects in different ways.
What Is the Center of Our Galaxy Like?
Even if humans could explore there, it would take us more than 25,000 years to reach it.
Why Do Planets Have Rings?
Though we think of rings as being passive, decorative elements to a planet, they're actually more like an extra-planetary surface.
The Incredible Expanding Telescope
The bigger the telescope, the better its vision.
What Are Atmospheres Like on Other Planets?
Examining planetary systems and the origin of life is one of the James Webb Space Telescope's core goals.
Dwarfing the Giants
What Makes Brown Dwarfs Unique?
How Do We Know There Are Black Holes?
Black holes are among the most mysterious and fascinating features of the universe, captivating scientists since the 18th century, including Albert Einstein and Stephen Hawking.
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