The object that smashed into Earth and kick-started the extinction that wiped out almost all dinosaurs 66 million years ago was an asteroid that originally formed beyond the orbit of Jupiter, ...

Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia. The researchers were inspired by a puzzling fact: many Solar Systems like ...

There may be another world lurking between the orbital lines of our solar system. Astronomers in Japan have published their theory of an “Earth-like planet,” dubbed Planet Nine, that’s hiding in plain ...

The Erigone family of asteroids are water-rich space rocks that provide a window into the solar system's past. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Earth's closest cosmic companions, known as 'minimoons' or 'quasi-moons', could hold the secrets to the history of our early solar system. When you purchase through links on our site, we may earn an ...

The United States weather agency has issued a G4 geomagnetic storm watch alert, implying severe storms expected.

What if Earth sat at the center of the solar system? Imagine a universe rearranged with our planet as the gravitational hub.

Spiral Galaxy from Kirkland et al. CREDIT Chris Kirkland and colleagues. A new study of zircon crystals from two of Earth’s oldest continents indicates that the formation of Earth’s continental crust ...

NASA's Psyche orbiter looked back and snapped a photo of Earth with the moon on its way to the asteroid Psyche in 2029. Credit: NASA / JPL-Caltech / ASU illustration As a NASA spacecraft whizzed away ...

The X5.1-class eruption from sunspot AR4274 is this year's most powerful solar flare and Earth is in the firing line.