The asteroid 2024 YR4, once considered potentially hazardous, isn't likely to hit us anytime soon. Now, a team of researchers ...
It fell to level 1 (green, “normal”) on Feb. 20 and has now been labeled level 0 (white, “no hazard”). “Asteroid 2024 YR4 ... YR4 is one of about 20,000 Apollo-type asteroids that ...
A fresh analysis of lunar dust collected by Apollo 16 astronauts in 1972 offers a clearer picture of the effects of asteroid strikes ... samples Apollo 16 brought back more than half a century ...