Astronomers watched water clouds grow thicker and thinner on a world trillions of miles away. It's familiar weather in a ...

As far-fetched as it may seem, quirks of orbital mechanics could allow hundreds of planets to be packed around a star ...

Scientists believe there are planets outside our solar system where life is even more abundant and sustainable.

Imagine if the planet Jupiter orbited much closer to the Sun. What effect would a so-called hot Jupiter have on our Solar ...

NASA’s Voyager 1 spacecraft has been breaking distance records for decades. Launched almost 50 years ago, it became the ...

Scientists did not arrive at Earth’s age from one clue. Several very different measurements keep pointing toward the same ...

The long story of the solar system hidden in small rocks arriving from space—Water falls on rainy days, and snow falls on ...

A planet with the same mass as Earth approaches near the Moon's orbit.If such an event were to occur, what would happen to ...

Harvard geoscientists reported that organic matter harvested from certain meteorites bears chemical traces of “primitive ...

Concerns about passing 1.5C and ‘global dimming’ are driving attention to the prospect of large-scale interventions in Earth ...

In 2022, a Sun-observing probe flew through an S-shaped stream of charged particles pouring out of the star. These mysterious ...

A potential Tatooine -like planet from Star Wars of Earth’s size in a nearby binary star system can hold liquid water and ...