The spacecraft was built at the Jet Propulsion Lab. And it has been operating ever since, almost without interruption, for ...

During my long career working in planetariums, I had a great advantage. Not only could I move the sun, moon and planets around the sky, I could also make ...

Astronomers have long been puzzled by a cosmic mystery: planets orbiting two stars—like Star Wars’ Tatooine—are surprisingly rare, even though they should be common. New research suggests the culprit ...

An international team has just achieved a world first: creating the thermal map of two rocky Earth-sized planets located in ...

This week, NASA announced it had shut down one of that spacecraft's remaining science instruments — not because the mission ...

Look to the west shortly after sunset on April 17 to find Venus appearing as a bright evening star 15 degrees from the ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

The Apophis asteroid, once feared to hit Earth, is less than three years from making an unprecedented approach toward Earth.

Two Earth-sized planets orbiting TRAPPIST-1 are locked in permanent day and night, with heat differences suggesting they are ...

The discovery of Earth-sized planets outside our own solar system has completely changed our way of viewing the universe, but ...

Unfortunately for science fiction fans, desert worlds outside our solar system are unlikely to host life, according to new ...

Three planets—Jupiter, Venus, and Mercury—are visible in the predawn sky this week. Jupiter appears highest and shines brightly above the horizon, with dazzling Venus below it. Fainter Mercury sits ...