"Chemical rockets that we use today, even with the extra speed boost from flying by planets, or from swinging by the sun for ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Scientists suggest an interstellar visitor may have altered planetary orbits in our Solar System, reshaping trajectories of ...

While an antimatter engine is very far off, researching it could yield other discoveries as well.

The research, yet to be peer-reviewed, sheds light on what could have changed the orbits of several planets in the solar ...

Patrick Mahomes Leaves Terry Bradshaw Biting the Dust as Calls Mount Against Troy Aikman’s Hatred for Chiefs QB Interstellar ...

Project Hyperion Design Competition: envisioning interstellar generation ships for humanity's future in space and sustainable ...

Some Israeli media have interpreted the military's deadly operations in the West Bank on Tuesday as a gesture of appeasement ...

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago.