YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a potentially hazardous object (PHO), meaning it could pose a collision risk to ...

New observations of a small asteroid discovered in December have led astronomers to conclude that the chances of it striking Earth are almost zero after earlier data had indicated a higher risk of a ...

TN17 is estimated to be around 540 feet in diameter, which is greater than the height of the Pyramid of Giza in Egypt (449 ...

For example, an asteroid estimated at 6-9 miles (10-15 km) wide - much larger than 2024 YR4 - hit ... of Bennu - with a diameter of roughly three-tenths of a mile (500 meters) - strikes Earth.

For example, an asteroid estimated at 10 to 15 kilometres wide — much larger than 2024 YR4 — hit off ... size of Bennu — with a diameter of roughly 500 metres — strikes Earth.

had the highest chance of any asteroid to hit Earth in modern history. It is known as a near-Earth asteroid, meaning its orbit presents a danger to Earth, according to NASA. It is between 130 and ...

For example, an asteroid estimated at 10 to 15km wide - much larger than 2024 YR4 - hit off the ... asteroid the size of Bennu - with a diameter of roughly 500m - strikes Earth.

"Scientifically there's a huge amount we can learn from asteroids," says Alan Fitzsimmons, an astronomer at Queens University ...