Questions tagged [space-telescope]

A telescope placed in space, typically for the purpose of avoiding atmospheric distortion, background light, and attenuation of light by the atmosphere.

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Why isn't the JWST mirror bigger?

What's behind the choice of not designing the largest possible folding mirror for the James Webb space telescope, since something like a 13m diameter mirror could also fit in Ariane's fairing?
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Why have JWST in a Sun-Earth L2 halo orbit?

What is the main reason JWST will be in a halo orbit around the Sun-Earth L2 LaGrange point? There have been questions on this site that ask Why won't JWST deploy in LEO where it is potentially ...
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Do we have a photo of a micrometeorite impact on a lens?

Micrometeorite and debris impacts on orbital spacecraft pose a threat to systems and crew. For example, a high velocity impact caused this chip in the International Space Station's Cupola. The ISS ...
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At what wavelengths and for what particle types have astronomical objects been imaged or at least directionally resolved from the ISS?

The ISS has an X-ray telescope called NICER and this answer in Astronomy SE (and links therein) explain that it was able to show that there are hot spots clustered near one pole of the pulsar PSR ...
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Are spacecraft star cameras ever used as scientific instruments for research?

There are quite a lot of spacecraft that have been up there a while and a lot of them have star cameras for attitude determination and for attitude control. Space telescopes (both heavenly and Earth-...
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What are Spectr-R's major contributions to radio astronomy that could not have been done from Earth?

R. I. P. Spektr-R Spektr-R Spektr-R (37755, 2011-037A) is a Russian radiotelescope spacecraft in a very high orbit around the Earth. It's orbit is cis-lunar with ...
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How do Hubble, Compton, Chandra, and Spitzer compare in bytes of data collected?

The Great Observatories is a NASA nickname for the four largest space telescopes to date. Each covers a different portion of the electromagnetic spectrum: The Hubble Space Telescope, the most famous ...
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How bright would electrostatically suspended dust above the lunar surface be? Has it ever been measured?

@TomSpilker's answer mentions the potential effect of dust from the lunar regolith being slightly electrostatically levitated by the charge on the lunar surface induced by the solar wind on telescopic ...
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Infrared space interferometry - Why isn't it being done?

Spektr-R is a 10 meter diameter radio telescope in Earth's orbit with an apogee of 338,000 km, nearly a Lunar distance. It does interferometry together with the Very-Long-Baseline Interferometry ...
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Rocky Planet around Proxima Centauri - how can we learn more about it?

Besides an epic millennium-long interstellar voyage by a probe, what can we possibly do to learn more about this rocky planet discovered around Proxima Centauri? I understand that we have some ...
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Future plans and advances for improved extrasolar planet imaging; has anything changed since 2019?

I have seen What is the state of the art of exosolar planet imaging in 2019? but answers there simply address the types and quality of images. Here I'd like to ask about plans for future technology to ...
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Will the James Webb Space Telescope be able to see the Spitzer Space Telescope (assuming…)?

Space.com's NASA's Spitzer Space Telescope is no more. Here's what's next for infrared astronomy. says: The best infrared eye in the universe† has closed, and scientists will need to wait at least a ...
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Are there specific location/locations where a solar gravitational lens telescopes would be placed?

I was thinking about solar-gravitational lens telescopes and it occurred to me that a particular telescope would likely have to be selected in opposition to a particular small spot of sky. That is, ...
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What fractions of the time did Skylab spend in Earth-oriented and Sun-oriented attitudes?

The Introduction section of NASA Technical Memo TM-X-64628 Angular momentum desaturation for Skylab using gravity gradient torques begins: The Skylab Apollo Telescope Mount (ATM) experiments ...