The Milky Way’s last major act of galactic cannibalism was surprisingly recent

New findings from the Gaia space telescope indicate that the Milky Way’s last major merger with another galaxy was more recent than previously thought, occurring around 2.7 billion years ago rather than 8-11 billion years ago. The collision, dubbed the Virgo Radial Merger, left “wrinkles” in patterns of the Milky Way’s stars that have been […]

Earth’s upper atmosphere could hold a missing piece of the universe, new study hints

Scientists have theorized that Earth’s upper atmosphere known as the ionosphere could interact with hypothetical dark matter particles passing through our planet. Dark matter is an invisible and unknown form of matter that makes up most of the matter in the universe but interacts very rarely with normal matter. Some theories propose that dark matter […]