Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

The orbits of Jupiter, Saturn, Uranus and Neptune may have been forever changed by an enormous object that whizzed through our solar system billions of years ago.

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

Trailblazing US Coast Guard leader becomes first top military officer fired after Trump takes office ‘I’m here until I die’: ...

Tesla Gigafactory Texas Is Officially OPEN!! The latest Tesla Gigafactory is now open, and will be producing Tesla Model Y ...

A close encounter with a mysterious interstellar object could explain the current orbits of several of Earth’s largest ...

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 ...

NASA's James Webb Space Telescope has captured the infrared glow of an ancient supernova's light echo, revealing ...

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

You’ll be able to view a rare alignment of planets this month and into February. Our astrotourism expert reveals the best ...