YR4 has a very small chance of striking Earth when its orbit briefly intersects our planet's in December 2032.

We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...

NASA's estimated probability of asteroid 2024 YR4 hitting Earth in 2032 has steadily increased. The chance of the highest-risk asteroid hitting Earth in 2032 has risen to 3.1% by NASA. Dubbed 2024 YR4 ...

The latest CDC tracking data on bird flu suggests the virus may be spreading undetected among humans. Dr. Celine Gounder has ...

The murderous doll who captivated pop culture in 2023 is back. And this time she's not alone. There's no question about it, ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

AT THE end of 1941, the German Luftwaffe were on the back foot. The Americans had joined WW2 after the attack on Pearl ...

From Cape Canaveral to Mission Control, these awe-inspiring spots should be on every intergalactic aficionado’s must-visit ...

As civilizations advance, they may need to migrate across the galaxy, and some researchers speculate they could use their own stars as massive engines. New research explores the possibility of a ...

Professor John Chiang of UC Berkeley explains the impact of Earth's axial tilt and orbital eccentricity on global climate. He ...