Could a reactionless, gravity-defying propulsion system actually work? A former NASA engineer says yes, but scientists are skeptical.

"The singularity is the most mysterious and problematic part of a black hole. It's where our concepts of space and time ...

A new analysis of astronomical data suggests unknown physics is at work assisting dark energy in acting almost as ...

The blueprint lays out the proposed path, environmental impact, scientific ambitions and project cost. Independent experts ...

Ellipses are defined as curves that surround two focal points. At any point on the ellipse, the sum of the distance to both ...

The James Webb Space Telescope identified the lights in the distant planet’s atmosphere, which could not be seen by earlier ...

NASA's James Webb Space Telescope recently turned its watchful eye toward asteroid 2024 YR4, which we now know poses no ...