This engine won't be fueling interstellar missions, but still finds an unexpected way to use deep space energy to generate ...

NASA has confirmed an unusual acceleration in the interstellar comet 3I/ATLAS during its closest approach to the Sun on ...

An interstellar object roughly the size of Manhattan has captured scientists’ attention — and one prominent Harvard ...

Interstellar Technologies ZERO rocket engine test-fired at Hokkaido Spaceport in Taiki, Hokkaido. It is fueled by liquid biomethane. Credit: Space.com | footage courtesy: Interstellar Technologies | e ...

Antimatter can produce more energy than anything else we know of, but it’s very fickle. A new field analysis explains what we need in order to progress with antimatter propulsion. While an antimatter ...

NASA's $10 billion space telescope studied the third interstellar object to enter the solar system, measuring the chemical contents of its halo. The James Webb Space Telescope (JWST) has observed the ...