Debate has raged for two decades over whether Pluto should be considered a planet. Some want President Trump to take action ...

The traditional Habitable Zone (sometimes called the Goldilocks zone) is kind of like a campfire. If you sit too close, you ...

Katherine Courtney and Alice Gorman talk to Margaret Harris about the danger of space debris – and what we need to do about ...

NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump ...

Astronomers have uncovered evidence of a dramatic cosmic crash unfolding around a distant star. While reviewing archived ...

Earth-size planet (HD 137010 b) found orbiting a nearby star once a year, making it a promising target for finding life.

Astronomers have detected an Earth-size planet candidate orbiting a nearby star once a year, making it a promising target for ...

A seemingly small planetary neighbor may play a larger role in Earth’s climate than previously thought. Mars is only about ...

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much ...

Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that ...

NASA crashed a spacecraft into an asteroid as an attempt to change the asteroid’s trajectory in 2022. Now, scientific ...

Humans were not designed for space. Ironically, because we insist on going there anyway, scientists now know from studying astronauts that the lack of Earth’s gravity can wreak health havoc, such as ...