Journey beyond Neptune to uncover the frozen, mysterious worlds that challenge everything we thought we knew about the solar system. From Pluto to Haumea and Makemake, these distant dwarf planets ...

How fast and in which direction is our solar system moving through the universe? This seemingly simple question is one of the key tests of our cosmological understanding. A research team led by ...

Pluto pulled Adeene Denton into its orbit during her undergraduate internship at the Lunar and Planetary Institute in Houston. It was summer 2015, when the New Horizons spacecraft zoomed past the ...

NASA's Hubble Space Telescope detected material from a Pluto-like body spiraling into a white dwarf star 260 light-years away from Earth. Credit: NASA / JPL-Caltech / Tim Pyle illustration For the ...

For the first time, astronomers have observed something like a Pluto colliding with a white dwarf, the shriveled corpse of a medium-size star. NASA's Hubble Space Telescope made the discovery by ...

Last month, Google quietly killed off Google Sky Maps. But there’s still another way to virtually explore most of the solar system a la Google Maps: it’s called Google Maps in Space. Google Maps in ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Pluto, once considered the ninth planet, remains one of the most mysterious objects in our solar system. Its icy surface and complex atmosphere have captivated scientists for decades. ‘Great News’: ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." Astronomers have discovered a massive new solar system body located ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

This is the third time an object from outside the solar system has been found. An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy. By Kenneth Chang For only the third time, astronomers have found ...