NASA prepares next steps in development of future large space telescope - SpaceNews
Launch of NASA's James Webb Space Telescope delayed again as costs rise - CBS News
Hubble Space Telescope: Pictures, facts & history | Space
Revealed: The 'Next Hubble' Space Telescope That Will Photograph Another Earth, Cost $11 Billion And Launch In The 2040s
Nasa's Webb telescope is a joy. But it's the private ventures that push at limits | Martin Rees | The Guardian
James Webb space telescope cost NASA billions. The pictures are worth it.
Hubble FAQs - NASA Science
James Webb Space Telescope, Hubble's $8.8 billion successor, faces lengthy delay | PBS NewsHour
NASA, SpaceX to Study Hubble Telescope Reboost Possibility - SpaceRef
NASA's new space telescope costs shoot the moon (Update)
How much does NASA's new telescope cost? – Andrew Steele
Telescopes on the ground may be cheaper, but Hubble shows why they are not enough
How much is the cost of the most advanced and expensive earth based telescopes? What can you see with them? - Quora
Hubble Space Telescope - Wikipedia
Saving the Hubble telescope is worth spending the money - The Japan Times
The History of Hubble - NASA Science
James Webb Telescope vs Hubble
Scientists Undeterred By Hubble Successor's Costs : NPR
James Webb Space Telescope: Launch delayed until 2021, cost now $10B
Hubble Space Telescope - Wikipedia
Hubble Space Telescope - Wikipedia
A pair of space upstarts are competing with SpaceX to rescue the Hubble Space Telescope
Hubble Space Telescope (HST) | History, Discoveries, & Facts | Britannica
NASA Again Delays Launch of Troubled Webb Telescope; Cost Estimate Rises to $9.7 Billion - The New York Times
Hubble glitch renews talk about private servicing mission - SpaceNews
Comparing the veteran Hubble vs. the new Webb space telescope - Los Angeles Times
