While scientists are still trying to confirm Planet Nine's existence, NASA says proving that this ice giant is real would help astronomers explain several mysteries within our solar system. In a ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

Given the considerable uncertainty about the future NASA Science budget given projected Trump Administration funding ...

An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

This week, an old astronomical controversy is renewed as researchers present new evidence for a hidden "Planet X" in our ...

Until relatively recently, the focus for Nasa's search for life was Mars, but that began to change in 1992 with the discovery of the first planet orbiting another star outside of our solar system.

Astronomers sing the James Webb Space Telescope have made an unequivocal detection of frozen water in another star system for the first time.

planets and our own solar system. To celebrate the anniversary milestone, NASA has released stunning photos taken by the telescope in its decades among the stars. Among them is an image of ...

The Red Planet is the fourth from the sun and is the seventh largest planet. As the planet is dry, rocky and bitter cold, a ...

Indeed, other planets, dwarf planets and moons in our solar system do have seasonal cycles ... Why changing seasons can bring the best northern lights NASA Mars satellite uncovers markings ...