Astronomers capture the twinkle of a distant quasar, RX J1131, and reveal the secret size of a black hole's fiery corona.

Even the oceans aren’t level. Hidden beneath the swells, Earth’s gravity subtly rises and falls—leaving a quiet “dip” in the ...

Scientists may have "heard" the first tantalizing evidence of primordial black holes formed directly from overly dense ...

When I was five years old, my family moved into a 1930s semi-detached house with a long strip of garden. At the end of the garden was a miniature orchard of eight apple trees the previous owners had ...

The ground may feel steady underfoot, but the planet is always in motion. While satellites and sensors have mapped the surface in fine detail, what lies beneath remains largely unknown. The crust, a ...

Two clashing ideas about disorder inside black holes now point to the same strange conclusions, and it could reshape the ...

Scientists can usually spot coronal mass ejections before they affect Earth—but this one snuck past coronagraphs and ...

Why it's incredible: Evidence suggests it could be the greatest known impact crater on Earth. The Wilkes Land crater is a hole in the bedrock beneath East Antarctica's ice sheet measuring 315 miles ...

Why it's incredible: Evidence suggests it could be the greatest known impact crater on Earth. The Wilkes Land crater is a hole in the bedrock beneath East Antarctica's ice sheet measuring 315 miles ...

In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of ...

Explore the mind-bending idea of tunneling through Earth with Neil deGrasse Tyson, covering gravity, heat, and physics ...

Tracking the first astronauts’ visit to Mars won’t be as simple as watching a clock or marking days off of a calendar. Thanks ...