The new findings strengthen the "RNA world" hypothesis that describes how the first life on Earth could have used RNA instead ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

New experiments suggest RNA, life’s essential molecule, could have formed naturally on early Earth and even arrived from ...

In an investigation to find out what sparked life on Earth, researchers have discovered that RNA formed through surprisingly ...

With findings on Earth’s polar extremes and its innermost core, scientists shaped how we look at the planet in 2025 in ...

Earth formed around 4.54 billion years ago. Knowing how old Earth is can be more difficult to confirm because Earth's age is not only based on the age of rocks, but also the isotopic estimates of what ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...

A peculiar property of the Earth's magnetic field could help us to work out how our planet was created 4.5 billion years ago, according to a new scientific assessment. There are several theories about ...

Satellite image of Earth displayed the North American continent (top) and the South American continent (bottom). (Pixabay via Courthouse News) (CN) — Like making a cake, dry materials came before ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.

There are several theories about how the Earth and the Moon were formed, most involving a giant impact. They vary from a model where the impacting object strikes the newly formed Earth a glancing blow ...