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
Can We Humans Ever Leave the Solar System?
Science fiction makes it look easy, but make no mistake: travelling to even the nearest planet takes a…
Spacesuits need a major upgrade for the next phase of exploration
NASA Yang Gao, King’s College London Humans have long dreamed of setting foot on the Moon and other…
Five animals that behave differently in moonlight
Warawut Klinjun/Shutterstock Anders Hedenström, Lund University Once every spring, a few days after the full moon, corals of…
How Do Astronomers Produce Those Beautiful Images of Space?
You might have scrolled through social media one day and found these photos of space—usually accompanied with high…