For an hour, HERA flew as close as 5,600 kilometers from the Martian surface, at a speed of 33,480 kilometers an hour. It ...

While it’s likely that the asteroid will harmlessly whiz by Earth, as Apophis is expected to do in 2029 (when multiple spacecraft are expected to study it), it’s crucial for astronomers to ...

it initially carried a 2.7% chance of impacting Earth during its 2029 flyby – then a record. While YR4's impact odds have unseated Apophis, the larger asteroid still briefly hit a higher rating ...

The asteroid also now rates as a 0 out of 10 on ... look at Apophis before and during its close approach to Earth in 2029. Though both YR4 and Apophis are no longer a risk to Earth, astronomers ...

In the case of Apophis, further observations eventually allowed astronomers in 2021 to rule out the possibility of an impact when the asteroid makes a close flyby to Earth in 2029 and again in 2036.

A similar scenario unfolded in 2004 with Apophis, an asteroid initially projected to have a 2.7% chance of striking Earth in 2029. Further observations ruled out an impact. NASA did note ...

The asteroid’s impact probability will continue to evolve—likely diminishing to zero—but 2024 YR4 will officially remain an object of concern so long as its estimated chance of striking Earth remains ...

On the way to investigate the scene of a historic asteroid collision, a European spacecraft swung by Mars and captured rare ...

Here are today's general risks from asteroids or comets both tiny and very large. Importantly, even relatively small rocks can still be threatening, as the surprise 56-foot (17-meter) rock that ...

currently the greatest asteroid threat since Asteroid Apophis, which will now safely pass Earth in 2029. Asteroid 2024 YR4. (NASA) YR4 is estimated to be between 150 and 300 feet in diameter.

That exceeds the threat once posed by Apophis, a much larger asteroid that was discovered in 2004. Astronomers initially calculated its chances of hitting Earth in 2029 at 2.7 percent. Further ...

New observations have dramatically reduced the chances of asteroid 2024 YR4 hitting Earth in 2032, lowering the risk to ...