The James Webb Space Telescope, also called Webb or JWST, is a space-based observatory, optimized for infrared wavelengths, which complements and extends the discoveries of the Hubble Space Telescope.
What are the most exciting things we will learn?
We will learn about the era of our universe’s history when galaxies began to form. We will learn how galaxies got supermassive black holes in their centers. We will see inside dust clouds with high resolution, where stars and planets are being born. We will learn about the number of planetary systems that might be hospitable to life.
Why is Webb an infrared telescope?
By viewing the universe at infrared wavelengths Webb is now showing us things never before seen by any other telescope. It is only at infrared wavelengths that we can see the first stars and galaxies forming after the Big Bang.
What will Webb tell us about exoplanets? Will it take photos of exoplanets?
Webb is able to tell us the composition of the atmospheres of exoplanets. It can observe planetary atmospheres through the transit technique. A transit is when a planet moves across the disc of its parent star.
Will we image objects in our own solar system?
Yes! Webb is able to observe the planets at or beyond the orbit of Mars, satellites, comets, asteroids, and Kuiper belt objects.
How far back will Webb see?
Webb is able to see what the universe looked like around a quarter of a billion years (possibly back to 100 million years) after the Big Bang, when the first stars and galaxies started to form.
When wss Webb launched and how long is the mission duration?
Webb launched on December 25, 2021 from French Guiana on a European Space Agency Arianespace Ariane 5 rocket. Webb was designed for a mission of at least five years, with a goal of 10 years.
Is Webb serviceable?
Webb is operating at the second Sun-Earth Lagrange point (L2), located approximately 1 million miles (1.5 million km) away from the Earth, and is therefore beyond the reach of any manned vehicle currently being planned for the next decade.
Is there a danger from micrometeorites?
All of Webb's systems are designed to survive micrometeoroid impacts.
The James Webb Space Telescope is a fascinating and complex machine that will help us learn more about the universe. It has already provided us with incredible images and data, and it will continue to do so for many years to come.
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