Before Earth and the other planets in our solar system existed, the sun may have been surrounded by giant rings of dust similar to Saturn's, according to a new study.
A collision with a Mars-size planet 4.5 billion years ago may have left a permanent impact on our planet's deep mantle.
In this comprehensive guide to the best treadmills of 2022, we look at the most popular running machines available for at-home use.
Omicron is sweeping away the delta variant, having impacts on hospitalization and population immunity.