This graph plots extinction ... when a layer of iridium was found in rocks laid down at the Cretaceous/Tertiary, or K/T, boundary. Greeted with skepticism at first, the impact hypothesis has ...

"Finding the element iridium, which is common in space objects, creates a time marker for comet or asteroid impacts," said Dennis Kent, a geologist with Rutgers University and a co-author of the ...

An international team is currently closely tracking the near-Earth asteroid 2024 YR4. The impact probability estimates for the year 2032 has been reduced from a peak of 3 percent to below 0.001 ...

Rare Metal The metal iridium ... energy impacts or explosions. Some scientists maintain that the fracture pattern in these quartz crystals could only have been caused by a massive asteroid ...

The extinction of the dinosaurs has been a hotly debated topic for decades, and whether it was an asteroid, a volcanic eruption or even poisonous plant species. But researchers have found hard ...

April 3 (UPI) --NASA said that an asteroid previously believed to be destined for Earth is the size of a 10-story building and is now more likely to make impact with the moon. Designated as near ...

The early calculations predicted an impact probability of 1.3% with Earth on December 22nd, 2032, and estimated its size to be between 40 and 90 meters. These estimates gave the asteroid a Torino ...