The exoplanet HD 20794d swoops in and out of its habitable zone every few hundred days, making for an extreme climate.

Earth's unusual orbit through hot and cold conditions tests the limits of tolerability for any known lifeforms.

HD 20794 d completes its orbit just shy of two Earth years, placing it well within reach of conditions that might harbor life ...

Scientists found an intriguing world in our galaxy.

Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.

Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly ...

Emily Simpson, a passionate space enthusiast and recent Florida Tech graduate, has published groundbreaking research that imagines an alternate version of our solar system. Instead of the asteroid ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear ...

What is the parade of planets? How to see Venus, Mars, Jupiter, Saturn, Uranus and Neptune this January and what days and ...

For the past week, an uncrewed lunar lander has been journeying through outer space on a 60-day mission to the moon on behalf ...

Within about an hour, Blue Ghost separated from the Falcon 9 rocket on an elliptical Earth orbit before establishing ...