President Donald Trump’s fiscal 2026 budget request, if approved by Congress, would kill many of NASA’s plans for robotic ...

American planetary scientists have ruled out the existence of the hypothetical ninth planet, commonly referred to as "Planet X", in 75 percent of the sky regions where it was previously believed to ...

As scientists search for worlds that may be habitable for life, they’ve discovered a type that is common in the universe — but doesn’t exist in our own solar system. These enigmatic planets are called ...

NASA’s IMAP spacecraft is being prepped for a 2025 launch to study the solar system’s outer boundary and solar wind from its ...

Scientists say it’s important to research geoengineering – large-scale attempts to cool the planet to fight climate change – ...

Astronomers have uncovered a rare form of methanol, a basic organic molecule, in the swirling disk of gas and dust around a ...

It’s been 18 years since Pluto’s celestial status was called into question—yet the matter seems far from settled. We asked experts from both sides to make their case. This 2015 NASA image of ...