Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. The sun will appear larger in the sky than on any ...

Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

Many tipping elements are now well-known: the Amazon rainforest, the Greenland Ice Sheet, the Atlantic Meridional Overturning ...

SpaceX will launch the first mission of 2026 tonight (Jan. 2), and you can watch the action live. A Falcon 9 rocket is ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

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

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

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.