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

The $10 billion orbiting observatory will give astronomers a better sense of the near-Earth asteroid 2024 YR4's size and ...

Astronomers say the asteroid, estimated at 40-90 m (131-295 ft.) in diameter, could impact Earth on Dec. 22, 2032. “It is ...

The Juno mission has discovered remarkably strong activity on Jupiter's moon, Io. The hot spot emits eruptions with energy ...

YR4 has just above a 1% chance of crashing into Earth in 2032, which is why astronomers and space agencies are paying ...

The Juno mission has revealed exceptionally intense activity on Io, one of Jupiter's moons. Scientists from NASA's Juno ...

It may sound apocalyptic, but a newly detected asteroid nearly the size of a football field now ... 2024 YR4 follows a highly elliptical, four-year orbit, swinging through the inner planets ...

It may sound apocalyptic, but a newly detected asteroid nearly the size of a football field now ... 2024 YR4 follows a highly elliptical, four-year orbit, swinging through the inner planets ...

NASA is tracking a trio of vehicle-sized asteroids set to whizz by close to the Earth today—with one getting three times nearer than the orbit of the ... making it about the size of a small ...