A powerful "gamma-ray burst" has been seen exploding from merging neutron stars hidden within a previously unknown mini-galaxy leftover from an ancient cosmic crash. The "collision within a collision" ...

A galaxy whose light set out when Tyrannosaurus rex had just died out has been captured in striking detail by the James Webb ...

The Sun has been a powerful source of energy fueling the solar system for billions of years, but our host star may have had rough beginnings. A new study suggests the Sun migrated away from the center ...

In A Nutshell Scientists have identified 6,594 solar twins, stars nearly identical to our Sun, in the largest model-driven catalog of its kind ever assembled. Each star was assigned an estimated age, ...

“Once we get back out to the pad, we'll configure for launch pending completion of the work in the VAB. And at the pad, we are on track for a launch as early as April 1st. And we are working toward ...

Scientists believe this long stream of gas may have formed when several galaxies collided millions of years ago.

Despite years of debate and follow-up studies, an odd streak of cosmic light still defies a final explanation. Is it a giant ...

NASA has received the first images from a tiny spacecraft designed to study the stars that host distant planets. The mission, called the Star-Planet Activity Research CubeSat, or SPARCS, will track ...

The comet formed in a cold and distant part of the early Milky Way up to 12 billion years ago, putting it just under 2 ...

With the first images from the spacecraft now in hand, the team behind NASA's Star-Planet Activity Research CubeSat, or SPARCS, is ready to begin charting the energetic lives of the galaxy's most ...

Most gamma-ray bursts—the brightest, most powerful explosions in the universe—are tracked back to the deaths of massive stars. But a new discovery suggests that such enormous explosions can come from ...

A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in a huge ...