Fresh results from near-infrared instruments foretell a bright future for finding life elsewhere in the Milky Way ...

The universe is full of wonders, but some worlds are downright deadly. From searing heat to violent storms, these planets make Earth look like a paradise. Many of them challenge everything we know ...

We currently know of more than 5,800 planets beyond the solar system, but we've only found the tiniest fraction of the exoplanets that astronomers think lie elsewhere in the universe.

HIGH above us in the distant reaches of space lie planets of every shape, size and colour. But just how many are in the universe, and what is the nearest planet to Earth? How many planets are in th… ...

"This black hole could then grow and consume the entire planet, turning it into a black hole with the same mass as the ...

But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

ALTERNATE UNIVERSE A neighborhood of stars packed tightly together (illustrated) might heat interstellar space enough for an orphaned planet wandering nearby to have liquid water on its surface ...

But if you do the math, that means for every star-orbiting planet like ours in the galaxy, there may be up to 100,000 planets that not only don’t orbit a star now, but most likely never did.

A new theory suggests that “time” might be the product of a universe that, long ago, decided to settle down into one ...

How many planets are in the universe? One of the earliest lessons you learn in school is that our Solar System is made up of eight planets – plus Pluto. We live in just one of thousands of star ...