This week, NASA said scientists took the biggest step yet toward discovering whether there was ever life on Mars when a rock sample collected by the Mars rover Perseverance contained potential biosignatures, which could suggest ancient signs of life. Douglas Jerolmack, a professor of Earth and environmental science at the University of Pennsylvania, discusses the significance of the discovery.
Previous article![]( "United Flight Makes Emergency Landing in Osaka")
Next article![]( "The End Continues’ Director Lashes Out At Imitators")
