Browsing Tag
orbiting
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Star Discovered Orbiting Milky Way’s Supermassive Black Hole Every 4 Years
Astronomers have discovered a star that orbits the supermassive black hole at the center of our galaxy every four years. That’s the shortest orbit ever observed around a supermassive black hole. The newly discovered star, called S4716, is about four times more massive than our Sun and twice as hot. It survives extraordinary conditions, orbiting…
How many satellites are orbiting Earth?
Home News Tech Thousands of the satellites orbiting Earth are small – like this cubesat seen here being released from the International Space Station. (Image credit: NASA, CC BY-NC) This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights.Supriya Chakrabarti, Professor of Physics, University of Massachusetts LowellIt seems…