Yes, it's real — we visited Molossia, a self-declared micronation near Nevada and possibly the smallest country in the world.

Astronomers using NASA's James Webb Space Telescope spotted TWA 7b, a Saturn-sized exoplanet around a nearby star ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

Webb Telescope captures TWA 7 b, a Saturn-mass planet 50 AU from its star, proving its ability to directly image smaller ...

New research suggests that Mercury's crust is shifting and twisting in unexpected ways thanks to the force of the Sun.

Learn more about TWA 7 b, an exoplanet with the mass of Saturn that was captured by creating a fake eclipse.

Learn how a new discovery of a giant planet can help scientists refine their theories of how planets form.

So-called M dwarfs are the most common stars in the Milky Way. A research team has determined around which of them Earth-like ...

TOI-6894 b, the largest exoplanet relative to its host star yet seen, doesn’t fit the most widely accepted formation model ...