Ancient mammals were better adapted than nonavian dinosaurs to survive the Chicxulub asteroid impact.
The massive eruption from the underwater Tonga volcano earlier this year generated a blast so powerful, it sent the fastest pressure waves ever observed in our atmosphere rippling around the globe.
A crescent-shaped crater in Northeast China holds the record as the largest impact crater on Earth that formed in the last 100,000 years.
The National Academies of Sciences, Engineering, and Medicine say that finding Earth-like worlds should be a priority.
Tropical storm Ida is gaining strength as it barrels through the Caribbean Sea and is expected to be a "dangerous major hurricane" when it slams into the northern Gulf Coast on Sunday (Aug. 29).
A concentration of plasma in the Earth's atmosphere, called the ionosphere, interacts with solar winds, ultraviolet radiation and radio waves.
Here's a list of 7 intriguing objects — and a few reptiles — that made headlines for falling from the sky.