Related topics: stars · galaxies · distant galaxy · universe

Image: Test mirror segments for the James Webb Space Telescope

The Andromeda galaxy is one of the most distant objects that we can see in the night sky with the naked eye. The light that we see now left there 2.5 million years ago. While this might seem a lot, in practice it is in our ...

Using 19th century technology to time travel to the stars

In the late 19th century, astronomers developed the technique of capturing telescopic images of stars and galaxies on glass photographic plates. This allowed them to study the night sky in detail. Over 500,000 glass plate ...

What is Nothing?

Is there any place in the Universe where there's truly nothing? Consider the gaps between stars and galaxies? Or the gaps between atoms? What are the properties of nothing?

Image: Magnifying the distant universe

(Phys.org) —Galaxy clusters are some of the most massive structures that can be found in the Universe—large groups of galaxies bound together by gravity. This image from the NASA/ESA Hubble Space Telescope reveals one ...

Quasars illuminate swiftly swirling clouds around galaxies

(Phys.org) —A new study of light from quasars has provided astronomers with illuminating insights into the swirling clouds of gas that form stars and galaxies, proving that the clouds can shift and change much more quickly ...

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