Evidence that Russia is racing to perfect a nuclear-armed spacecraft to target Western satellites is sparking the U.S. and its Allies to strengthen their space defenses.

As Elon Musk's SpaceX works toward a May 19 debut of its third-generation Starship, here's a look back at all the previous ...

What can imaging supernovae (plural for supernova) explosions teach astronomers about their behavior and physical characteristics? This is what a recent study published in Nature Astronomy hopes to ...

According to scientists, red supergiant stars should produce more supernovas. But astronomers just aren’t spotting them. Here's how they plan to crack the case.

The two solid rocket boosters flew in different directions as the external fuel tank became a fireball.(AP: Bruce Weaver / File) Forty years ago, the Challenger space shuttle disintegrated just after ...

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 ...

Rare, luminous blue cosmic explosions called LFBOTs may result from black holes or neutron stars colliding with Wolf-Rayet ...

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 ...