Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

Mercury takes only 88 Earth days to orbit the sun.

Titan is the only moon in our solar system with a significant atmosphere. Now we have a very good idea of how this dense ...

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

The organic ingredients to life, hints to where Earth’s water came from, and the fundamental building blocks of our planet ...

After terminating its diversity programs, the space agency is reviewing whether several science committees are complying with ...

"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the ...

Earliest inner solar system planetesimals shaped the inventory of moderately volatile elements in terrestrial planets.