Determining the Milky Way’s size is challenging because we’re inside it. Estimates have varied greatly, from 100,000 to 1.9 million light years in diameter. Studying the Milky Way involves accounting for dark matter’s gravitational effects since it comprises most of the galaxy’s mass but remains invisible.
Related Posts
Saturn’s ocean moon Enceladus is able to support life − my research team is working out how to detect extraterrestrial cells there
Scientists could one day find traces of life on Enceladus, an ocean-covered moon orbiting Saturn. NASA/JPL-Caltech, CC BY-SA…
May 1, 2024
Seismic Waves Reveal Mars’ Liquid Core and Chemical Composition
Scientists have directly measured the properties of Mars’ core for the first time and confirmed model predictions of…
May 9, 2023
X-rays have revealed a mysterious cosmic object never before seen in our galaxy
Author provided Ziteng Wang, Curtin University In a new study published today in Nature, we report the discovery…
June 25, 2025
The Webb Telescope May Have Found Massive, Ancient Galaxies—And We May Have to Rewrite Our Textbooks Because of It
A team of astrophysicists has discovered six potential galaxies hidden in James Webb Space Telescope images that could…
March 5, 2023
