Explore the journal

$A vivid, high-resolution astronomical portrait of intermediate spiral galaxy NGC 1827 seen edge-on. The galactic disc stretches horizontally across a deep black void, bisected by intricate, textured lanes of rusty-brown and umber interstellar dust. Luminous, vibrant azure-blue star-forming regions are scattered along the disc, contrasting against the golden-white radiance of the central bulge. To the left of the core, a brilliant foreground star glints with four razor-sharp diffraction spikes. Distant background galaxies appear as delicate, faint golden smudges in the surrounding field.$

Cosmology4 min read

NASA’s Hubble Spies Spiral’s Edge: Galaxy NGC 1827 Tested Against Cosmological Models

NASA’s Hubble Space Telescope has imaged the edge-on spiral galaxy NGC 1827 in Columba. The observation is part of an ongoing multi-orbit survey studying 260 satellite galaxies around 22 Milky Way-like hosts to test and refine small-scale cosmological models.

A conceptual galaxy and diffuse halo illustrate the distinction between visible stars and inferred gravitational mass.

Cosmology4 min read

Dark matter: what scientists know

Dark matter is supported by gravitational evidence, but no particular candidate has been confirmed. Explore what observations reveal, how experiments search, and where uncertainty remains.

Find your next rabbit hole.

NASA’s Hubble Spies Spiral’s Edge: Galaxy NGC 1827 Tested Against Cosmological Models

Dark matter: what scientists know