Satellites come in all shapes and sizes, but there aren't any that look quite like SPHEREx, an infrared observatory NASA ...

Imagine standing on the red Martian surface, looking up at the sky that feels alien but strangely familiar, with no ...

Thankfully on the 3rd Mercury leaves spacey Pisces for bold Aries and connects with power planet Pluto on the 5th ... (where we rank items on a 100-point scale) to our painstakingly curated ...

Despite no longer being a planet, Pluto is still loved by millions ... nor could we accurately estimate Pluto’s size. Afterall, this is partly why it took so long for Pluto to be discovered ...

It has greatly expanded investigation in a variety of fields, from the birth of the universe to looking for faraway planets that we ... Jupiter, Pluto, Uranus, Neptune and Saturn, as well as ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

Why was Pluto reclassified as a dwarf planet? One might think that it’s purely a matter of size. Mercury, the smallest of the ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping scientists nail down their respective masses, a new study reports. The Kuiper ...

For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The ...