This stunning photo was taken on January 29, 2025, from 265 miles (425 km) above the Pacific Ocean. Pettit, a seasoned ...

Whether aliens could detect our modern civilization depends on what signs they’re looking for—and, crucially, their distance ...

"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." Spirals are a repeating theme in ...

Let's dive into one of those cosmic curiosities that's bound to blow your mind: how we might chat with aliens. And no, I'm ...

THE KARDASHEV SCALE. We have no idea what an alien civilization would look like. Humans are evolved primates. What if an ...

Astronomers have discovered that sulfur may be a key to helping us narrow down our search for life on other planets.

Located around 900 light-years away in the Puppis constellation, Tylos orbits its parent star at an absurdly close distance, ...

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing ...

Scientists have long overlooked white dwarfs as hosts for habitable exoplanets, assuming their lack of fusion would make life ...

Using the James Webb Space Telescope, astronomers have taken a detailed look at the supermassive black hole at the heart of ...

Using NASA's James Webb Space Telescope, Northwestern astrophysicists gained the longest, most detailed glimpse yet of the ...

In 1610, astronomer Galileo Galilei used the newly invented telescope to show that the Milky Way was composed of a huge number of faint stars. For the next 300 years, astronomers assumed that the ...