"We didn't know what exactly to expect from these first observations – the sun's poles are literally terra incognita,” Sami ...

Visuals from the European Space Agency’s Solar Orbiter reveal chaotic solar magnetism in the solar polar region. Even better images are expected in the years ahead.

An accidental discovery might change how we think about one of the most mysterious structures in our solar system.

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

Recently, scientists have made an exciting discovery: 11 Earth-like planets located just outside our solar system. These celestial bodies, which share many characteristics with Earth, are sparking ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system.

PRINCETON, N.J. (CNN/CNN Newsource/WKRC) — A new planet was possibly discovered beyond the planet Neptune ... new dwarf planet at the edge of our solar system. The team has named the celestial ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond Neptune, it orbits the sun every 25,000 years.

The new object is one of the most distant visible objects in our solar system and, significantly, suggests that the empty section of space thought to exist beyond Neptune in the Kuiper Belt is not ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to ...