A whisper of gas surrounds the Moon, so thin that a single spacecraft can temporarily become its most dominant feature.
The real challenge of spaceflight isn't reaching the sky—it's learning to fall sideways fast enough that you never hit the ground.
In the solar system's most alien chemistry lab, a nuclear rotorcraft will hunt for the molecular building blocks of life where methane rains and hydrocarbon seas lap at icy shores.
Our solar system is almost entirely the Sun, surrounded by vastness and secrets—including a possible planet astronomers have yet to find.
Gravity does more than pin us to Earth—it holds our bodies together, and astronauts are only beginning to understand what happens when it lets go.
A cosmic accident separated Earth from its twin billions of years ago—one world became habitable, the other a lead-melting inferno.
Burying the bomb deep inside the asteroid, rather than detonating it on impact, could multiply the deflection needed to save Earth—if the theory survives real-world testing.
Beijing's asteroid-deflection blueprint promises to outpace NASA's proven success—if China can turn plans into practice.
A world four billion miles from the Sun turned out to be far more geologically alive than anyone dared imagine.
Two competing forces may explain Mars's vanishing oceans: solar wind erosion that stripped away its atmosphere, and vast underground reservoirs that swallowed what remained.
A triumph in orbit collided with a threat to the very science that built NASA's reputation, exposing a deeper crisis beneath the headlines.
Seeing Earth whole from space triggers a profound psychological transformation that astronauts struggle to put into words—and scientists are only now beginning to understand.
The galaxy is ruled by a type of world we've never seen up close—and it's forcing us to rethink how planetary systems form.
The deep ocean remains so alien that we know Mars better—and the creatures we've discovered in its lightless depths have fundamentally changed what we thought life required to survive.
A Hubble-sized mirror with a hundred times wider view will hunt for the universe's darkest secrets and worlds beyond our solar system.
The universe's speed limit isn't just hard to reach—it's fundamentally impossible for anything with mass, but physicists keep searching for loopholes anyway.
