Dozens of startups working on data centers, mining and pharmaceuticals are hanging on Elon Musk's long-stalled megarocket.

According to scientists, red supergiant stars should produce more supernovas. But astronomers just aren’t spotting them. Here ...

A sudden, mysterious burst of bright light in the sky could be from a black hole devouring a vast, unusually bare star. In 2018, astronomers spotted a new kind of cosmic explosion that became brighter ...

SpaceX has transformed the space industry, but its rockets have also developed a reputation for dramatic test failures and mid-flight explosions. The company argues these setbacks are part of an ...