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Angular Resolution and What Hubble Can't See

While Hubble provides the highest resolution of any visible-light telescope, that resolution has a limit. There are many things in the universe that Hubble can't resolve ... in angular size. Let's add... read more

2019's Science Breakthrough Of The Year Will Show Us A Black Hole's Event Horizon

The reason the technology has been a limiting factor is resolution. The size that a black hole appears to be is proportional to its mass, but inversely proportional to its distance from us. To see the ... read more

Why can Hubble get detailed views of distant galaxies but not of Pluto?

How well should Hubble see either the galaxy or Pluto? To answer this question, you need to know the angular resolution of Hubble's camera. The Wide Field Camera 3 (WFC3) was used for both of these ph... read more

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Discovered Pairs Of Black Holes At Centers Of Merging Galaxies

The Hubble observations ... “In our study, we see two galaxy nuclei right when the images were taken. You can’t argue with it; it’s a very ‘clean’ result, which doesn’t rely on interpretation.” The hi... read more


Moon hoax: why not use telescopes to look at the landers?

Those numbers sound like you should be able to spot them with, say, Hubble. But can you? The question here is one of resolution: how big does an object have to be before a telescope can resolve it, th... read more

Pluto: From Hubble to New Horizons

That’s understandable; people see incredible high-res Hubble pictures of planets, galaxies, nebulae … so why not Pluto? It’s a matter of what’s called angular resolution, the ability to distinguish cl... read more

Scientists use mismatch in telescopic data to get a handle on quasars and their 'tails'

This technique bests the angular resolution achieved by optical telescopes several hundredfold. This is what made radio signals so useful for resolving the structure of jets expelled by quasars. "But ... read more

The Limit Of What Hubble Can See

In fact, when we go as deep as possible, even though we can’t get objects to the same resolution or faintness as Hubble ... But a galaxy like this is really probing the limit of what Hubble can reach. ... read more

This exoplanet is inflated like a balloon

Though humans can't see any color beyond red when looking at this resolution with the naked eye, the Hubble Space Telescope's infrared eye can see hundreds of colors. Carmenes can pick up more than 10... read more

Hubble's Universe Unfiltered

While Hubble provides the highest resolution of any visible-light telescope, that resolution has a limit. There are many things in the universe that Hubble can't resolve ... in angular size. Let's add... read more

Fourteen Ways Our Perception of the Universe Changed Forever in 2017

But, thanks to the gravitational lensing effect he predicted, and combined with the Hubble space telescope’s angular resolution, astronomers found ... The Event Horizon Telescope took some pictures We ... read more

Hubble is a cyclops

Hubble has only one eye. It has one mirror. It can’t perceive depth, and therefore can’t see in 3-D. We see slightly different ... The human eye has an angular resolution of roughly 1 arcmin = 0.0003 ... read more



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