May 2, 2025 · Galaxies consist of stars, planets, and vast clouds of gas and dust, all bound together by gravity. The largest contain trillions of stars and can be more than a million light-years across. The …

It is a barred spiral galaxy that contains over 100 billion stars, including our own Sun. Spanning more than 100,000 light-years in diameter, the Milky Way hosts countless solar systems, nebulae, star …

Jul 25, 2023 · Recent estimates tell us that there could be as many as two trillion galaxies in the observable Universe. Two trillion galaxies is an estimate. Scientists haven’t sat there and counted …

Dec 4, 2025 · Scientists have discovered one of our universe's largest spinning structures. It's a 50-million-light-year-long thread in the cosmic web.

Jul 28, 2025 · Despite its immensity, the Milky Way is but one of trillions of galaxies scattered throughout the observable universe. Yet it is vast enough to humble the human imagination. Within it dwell over …

Nov 8, 2024 · Are we just one of a billion other galaxies in the universe, or are we somehow special? A new study from a UVA astronomer and her research partners offers some answers.

This virtual journey, from the centre of the Milky Way to its outskirts, shows the different components that make up our galaxy, which is home to about a hundred billion stars.

Apr 14, 2025 · Hubble’s observations of galaxies continue today, revealing the history of galaxies throughout the universe and shedding light on how our galaxy – and with it, our tiny corner of the …

The Milky Way is actually a galaxy - a system of billions of stars gathered by mutual gravitation. Our knowledge of our galaxy (and many others) is still very new but much progress has been made.

Dec 3, 2025 · A giant rotating filament of the cosmic web may be the largest spinning structure ever seen, and could help reveal how galaxies form.