Even astronomers who study peculiar outer space objects have their favorites. Here are some interstellar bodies that have won ...

Scientists have been using complicated, hypothetical particles to explain the Big Bang, but this theory posits that a simpler ...

Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...

The Milky Way contains a modest amount of alien civilizations, a new paper proposes — and there's a reason we aren't seeing ...

A new scientific theory on solar tide effects has dramatically improved the accuracy of calculating how much faster clocks ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

Black holes are so strange that physicists have long wondered if they are quite what they seem. Now we are set to find out if ...

Evolving dark matter may explain cosmic acceleration. Observations support a mixed model. For years, a stubborn puzzle has ...

Dubbing these “closed timelike geodesics” (CTGs), Ralph and Sajeendran explain in the paper: “Such a CTG would be ideal for ...

SXS—Simulating eXtreme Spacetimes—is an ongoing scientific collaboration that has been generating simulations of dramatic ...

Connection matters. In a world dominated by screens, it’s easy to forget that we thrive in community, relationships, and ...

A consensus is emerging that the dots, sometimes called rubies, are an entirely new type of object in the Universe.