Fly about 2,600 light-years to Hubble Space Telescope imagery of the Cygnus loop nebula. See images from 2001 and 2020.

Comet C/2025 R2 (SWAN)'s backdrop is dominated by the Eagle Nebula — a vast cosmic structure of dust and hydrogen-rich gas ...

The eighth day of the 18th annual Space Telescope Advent Calendar features a young star cluster carving out space inside a ...

Due to the costs and duration of the Hubble project, NASA was under pressure. At the end of 1995, it released a photo that ...

NASA scientists are sounding an alarm that would have been unthinkable a decade ago: the same commercial satellite ...

Wonder Bound, the product of a collaboration between Johns Hopkins University, the Space Telescope Science Institute, and the ...

The last two decades have not been kind to science studies. Already bruised and battered by the “science wars” of the 1990s, by the 2000s sociologists of science — who had l ...

Both of Friday’s Astronomical Unit lectures are related to celestial phenomena not discernible to human senses. David ...

Ireland has no shortage of stately manors, but as Irish Stew hosts Martin Nutty and John Lee learned, no other historic ...

For millennia, the act of gazing at the night sky has connected us not only to the stars but also to one another. This simple ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...