QUO Fast Radio Bursts

Future Missions E3: A Telescope for the Past (Pt.1)


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Introduction - A telescope for the past:

  • JWST (James Webb Space Telescope) is an orbiting infrared observatory that is a successor to HST. Using the infrared wavelength.  JWST will be able to look at the start of galaxies, stars, planetary systems. 
  • In the universe, the further away you look the further back in time you are looking. JWST is designed to look at the beginning of the universe, going back 13 billion years in the past.

A Successor to Hubble:

  • Hubble: Optical and UV, JWST: Infrared. Most JWST science had its foundations laid by Hubble.
  • JWST has a 6 times larger collecting area. Hubble has a primary mirror of 2.4m and JWST 6.5m.
  • JWST’s orbit is going to L2  (As the Earth orbits the Sun, Webb will orbit with it - but stay fixed in the same spot with relation to the Earth and the Sun) which is about 1millon km away from the Earth. Hubble a telescope in low Earth orbit (500 km). 

JWST's Science Goals:

  • JWST has 4 primary science goals: Study the formation of First stars and reionization, how galaxies assemble in the Universe, How do stars and planets get their start and finally study exoplanets.
  • First Stars: Webb will be a powerful time machine with infrared capabilities to see the first stars peering out of the darkness of the early universe.
  • Formation of galaxies: JWST will study the earliest galaxies to today's grand spirals and ellipticals, helping us to understand how galaxies assemble over billions of years.
  • Birth of Star and Planets: See right through and into massive clouds of dust that are opaque to visible-light observatories.
  • Origins of Life and Formation of Planets: Study atmospheres of extrasolar planets. In addition to other planetary systems, Webb will also study objects within our own Solar System.

Links to Science Outreach Material:

  • McDonald Institute
  • Royal Astronomical Society
  • Astronomy on Tap

Special thanks to Colin Vendromin for the music also thanks to Zac Kenny for the logo!

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QUO Fast Radio BurstsBy Queen's Observatory