In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

The James Webb Space Telescope's s MIRI and NIRCam instruments have captured an amazing view of spiral galaxy NGC 2090. The ...

New James Webb Space Telescope observations of a star cluster called NGC 346 are shedding light on how, when and where ...

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Rare ultra-faint dwarf galaxies beyond the influence of other galaxies show evidence that star formation was stifled long ago ...

Unusual detection bolsters evidence that the mysterious signals can be caused by different astrophysical events.

The Triangulum Galaxy, also informally known as the Pinwheel Galaxy, is a spiral galaxy 2.7 million light-years from Earth ...

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

The Priority Mail 'Spiral Galaxy' and Priority Mail Express 'Star Cluster' stamps are now available in panes of four at post ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

The United States Postal Service has issued two new stamps featuring stellar images beamed back to Earth by the James Webb ...

The U.S. Postal Service launched two new Priority Mail and Priority Mail Express stamps today at the Big Sky, Montana, Post ...