Get the latest Science News and Discoveries

An alien machine already visited us, Harvard astrophysicist still contends

None

Get the Android app

Or read this on Live Science

Read more on:

US

Photo of Harvard

Harvard

Related news:

Research confirms increase in river flooding and droughts in US, Canada

Research confirms increase in river flooding and droughts in US, Canada

Experts tap into behavioral research to promote COVID-19 vaccination in the US

« NASA Extends Exploration for Juno and InSight Planetary Science Missions

Saber-Toothed Tigers Had Unique Growth Strategy among Big Cats »