White dwarfs—the dense, fading cores left behind after stars like our sun die—are usually calm, cool, and ancient. Over ...

By combining the power of ground-based and space-based telescopes, astronomers have discovered a new brown dwarf—a type of ...

Scientists have recently unveiled a remarkable discovery in the outer reaches of our solar system: a space fossil located 4 ...

Planets do not emit visible light like stars; they shine in the sky because they reflect sunlight. Exoplanets too reflect starlight, and nobody does it better than LTT9779b. This world reflects 80 ...

Solving a lunar mystery? Scientist at the University of Arizona is the lead author on research proposing a new theory for the ...

Could Artemis III astronauts collect some lunar samples that shed light on the moon's mysterious past? That's what a team of ...

Since Pluto was relegated to dwarf planet status, almost everyone has agreed that there are eight planets in our solar system ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

A natural satellite is simply a celestial object that orbits a planet or a smaller body. Unlike the ones we build and send up ...

Astronomers detected a bright signal, coming from deep inside a dust disc, that is likely newborn planet HD 135344B still ...

Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...

For all the talk about life across the cosmos, Earth remains the only confirmed example. That single data point makes your ...