From cosmic road trip analogies to mind-bending measurement of the universe, here's a closer examination of just how gigantic ...

Earth has a new neighbor that lives far, far away. Scientists from the Institute for Advanced Study's School of Natural ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

Even within our own solar system, distances are enormous. NASA astrophysicist Dr. Amber Straughn explains that driving a car ...

The universe is unimaginably vast, with over 2 trillion galaxies and still expanding, far beyond human exploration.

Even in our own solar system, distances seem infinite. Think of driving continuously at highway speed to Pluto. It would take ...

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new ...

But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune ... 2017 OF201 is about one-third the size of Pluto, which was reclassified ...

The area beyond the Kuiper Belt, where the object is located, has previously been thought of as fairly empty. NASA's New Horizons probe, which snapped pictures of Pluto and its moons in 2015 ...

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond ...

Learn about the recently discovered trans-Neptunian object that may eventually join Pluto as a dwarf planet, found at the ...