A new study suggests that the ancient Earth could have been donut-shaped for at least a century.
A laser-based remote-sensing equipment called lidar, which is used in observing planets, moons and asteroids, could provide help archaeologists in finding fossils and bones hidden below Earth’s surface.
A team of researchers from the University of Cincinnati has discovered proof that early life forms that lived on Earth thrived even without oxygen billions of years ago.
A new study from the University Oregon reveals that soil on Earth is older than scientists previously thought. In fact, it existed long before trees or lichens evolved on the planet, and is even similar to the soil that NASA's Curiosity rover found on Mars.
Unlike today, ancient Earth needed more heat because the Sun was 10 to 15 percent dimmer than what it's today. Researchers have refuted a long-held theory that the Earth, billions of years in the past, stayed warm with the help of methane.