Across the galaxy, astronomers now see that planetary systems fall into four broad classes, and our own solar system, part of the rare Ordered group, is only one of them. At the same time, discoveries ...

The Pandora Space Telescope will study 20 promising worlds that could host life ...

The NASA/ESA/CSA James Webb Space Telescope just solved a conundrum by proving a controversial finding made with the NASA/ESA Hubble Space Telescope more than 20 years ago. In 2003, Hubble provided ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

When two giant planets collide, an even bigger world may be born. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Based on new simulations, ...

If the fabric of the universe is a flat, rubbery sheet, Earth is a pothole that bends the fabric of spacetime into a funnel around it. But what would it be like to overcome Earth’s gravity, lift off ...

Conditions in the early universe might have enabled rocky planets with water to form much earlier than anticipated, potentially allowing life to begin sooner too. Astrophysicists studying the early ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that ...

For centuries our solar system was the only planetary system known to humans. We had no proof other worlds existed beyond those in our own cosmic backyard, and we imagined that if other planetary ...

"It represents a major step forward in how we think about the search for distant worlds capable of hosting life." Water isn't just delivered to planets by comets and asteroids — it can also be forged ...

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to Earth. Astronomers have revealed new evidence ...