The most significant change since those 1970's experiments were conducted was the discovery of high levels of perchlorate on Mars. Perchlorate, plus abiotic oxidants, explains the Viking results and ...

The Blue Ghost lunar lander, managed by Texas company Firefly Aerospace, touched down Sunday morning on the moon's near side.

Firefly will be livestreaming the landing attempt on its YouTube page. The livestream will start at 2:20 a.m. ET on Sunday, ...

Mr. Musk uses online slang to marshal his 200 million social media followers in support of his efforts to gut the federal government. But he might be reaching his limits. By Mike Isaac Maye Musk ...

Elon Musk is racing against time with a bold plan to safeguard humanity’s future beyond Earth. A "space ark" could be the key ...