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The object’s aphelion the farthest point on the orbit from the Sun is more than 1,600 times that of the Earth’s orbit,” said ...

The object is about 700 kilometres wide and lies nearly three times farther from Earth than Neptune. Its highly elongated ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

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

The universe's vastness challenges human comprehension. It contains trillions of galaxies and countless stars. Pluto's ...

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

We see at most 3% of the universe,” said Pamela Gay of the Planetary Science Institute, citing a mind-boggling constraint ...

The International Astronomical Union’s Minor Planet Center, which catalogs new moons and other small bodies in the solar ...

Scientists had previously believed that no celestial bodies existed in the vast, empty section of space beyond Neptune.

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

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...