Why we think Theia existed
The giant-impact hypothesis posits that billions of years ago a Mars-sized body named Theia collided with the early Earth.
Quantum effects make distant objects move together: New research finds this may happen with ripples in space
Galaxies, planets, black holes: to most people, everything about our Universe sounds and feels enormous. But while it's true ...
Sunita Williams has ‘tough’ gravity to face when back on Earth. Here's what changes
NASA astronaut Butch Wilmore, who is spending extra time in space along with Sunita Williams, said that the two astronauts ...
NASA explains exactly what happens to our bodies in space as they prepare for Mars mission
NASA is using its human spaceflight experience on the space station to figure out what types of medical events happen in ...
The Earth’s Core Is Not as Solid As We Thought, Yet Another Study Speculates
A new study of decades worth of seismogram data shows that the surface of Earth’s iron and nickel core is more malleable than ...
"Even lifting a pencil will feel like a workout...': Why gravity will make Sunita Williams and Butch Wilmore’s Earth return a struggle
NASA astronauts Sunita Williams and Butch Wilmore are returning to Earth on March 19, 2025 after over eight months aboard the ...