How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

The Sun, our life-giving star, is slowly dying. In about 5 billion years, it will exhaust its fuel and transform into a red giant, altering the solar system forever. But long before that, the Sun’s ...

At the far reaches of our Solar System lies Pluto, a mysterious world shrouded in shadows and icy terrain. NASA’s latest photos from this distant dwarf planet have provided us with groundbreaking ...

Sedna will reach its closest approach to the Sun in 2076, providing a remarkable space-faring opportunity that won’t come ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

The Owl Nebula is an example of a planetary nebula — a type of object that yields glimpses of stellar death in slow motion.

Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of ...

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

NASA's James Webb Space Telescope has been unwaveringly focused on our universe. With its unprecedented power to detect and ...

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

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

Pluto is the tiniest planet in our solar system with a diameter of roughly 2,377 kilometers, making it even smaller than our ...