CNN

Astronomers ‘hear’ the celestial choir of gravitational waves for the first time

Editor’s Note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have been able to “hear” the ...
Astronomy

Is there any sound in space? An astronomer explains

Sound needs a medium (solid, liquid, or gas) to travel. Space is a vacuum, lacking the matter to carry sound waves. No sound in space means no echoes. While a near-perfect vacuum, some sounds can be ...
Ars Technica

NANOGrav hears “hum” of gravitational wave background, louder than expected

Gravitational waves are ripples in the fabric of spacetime predicted by Albert Einstein’s general theory of relativity, first detected in 2015. But an expected corresponding low-frequency ...
The Conversation

Why isn’t there any sound in space? An astronomer explains why in space no one can hear you scream

Chris Impey receives funding from the National Science Foundation. Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...
The Conversation

Researchers created sound that can bend itself through space, reaching only your ear in a crowd

Yun Jing receives funding from NSF. Jiaxin Zhong does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed ...