How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

A physicist proposes that the universe is not empty space, but is a viscous fluid, fueling the expansion and contraction we see.

What Earth do you live on? A round one? Flat one? Maybe your world is resting on the back of a huge cosmic turtle? What about a hollow Earth? Just a planet’s shell levitating around absolutely nothing ...

Physicists suggest that a single, extraordinarily powerful cosmic signal detected on Earth could be linked to the explosive end of a tiny black hole from the early universe. That signal now stands as ...

I asked my friend Julie Ménard how Earth formed. She’s a planetary scientist at Washington State University. She told me it started with the Big Bang. That was nearly 14 billion years ago. “The Big ...

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has ...

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long-standing debate over how our planet formed. When you purchase through ...

This video shows the habitable zone around the star HD 20794 (in green) and the trajectory of the three planets in the system. Thirty years after the discovery of the first exoplanet, we detected more ...

The earth and the heavens are connected to each other. The light and the heat, the blessings and the mercy in form of rain for instance, come down from the skies. According to the consensus of ...