GS-z13-1, marks the earliest sign yet spotted of the era of cosmic reionization at 330 million years after the Big Bang.

SpaceX's Starship megarocket, the world's most powerful rocket, is officially on NASA's list for future launches.

What researchers are calling a "Once-in-a-lifetime event," is a nova, or explosion, between two suns 3,000 lightyears away.

Every night, we see familiar constellations in the sky that have inspired scientists and dreamers for centuries. But the ...