In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

The Andromeda Galaxy, 2.5 million light-years away, is unveiled in Hubble's largest photomosaic. Spanning a decade, this ...

For humans, the most important star in the universe is our Sun. The second-most important star is nestled inside the ...

The instrument is the Prime Focus Spectrograph, and it is one of the flagship instruments in the next era of the Subaru ...

NASA’s Spitzer Telescope revealed the Milky Way’s hidden center, using infrared to uncover its dense, star-packed core. This ...

In commemoration of Edwin Hubble's discovery of a Cepheid variable class star, called V1, in the neighboring Andromeda galaxy 100 years ago, astronomers partnered with the American Association of ...

Edwin Hubble's discovery of the expanding universe transformed cosmology, revealing countless galaxies and laying the ...

Notably, the University of Tokyo Kavli Institute for the Physics and Mathematics of the Universe has taken the lead in ...

Samantha W. Brunker et al, 3D MC I: X-ray Tomography Begins to Unravel the 3-D Structure of a Molecular Cloud in our Galaxy's Center, arXiv (2025). DOI: 10.48550/arxiv.2501.07717 Journal ...

The instrument, called the Prime Focus Spectrograph (PFS), features approximately 2,400 prisms scattered across the extremely wide field of view available at the Subaru Telescope’s primary focus, ...