Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Astronomers have discovered what seems to be a star racing through the Milky Way at 1.2 million mph, dragging a Neptune-sized ...

Astronomers have discovered what seems to be a star racing through the Milky Way at 1.2 million mph, dragging a Neptune-sized ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

A French astrophotographer has captured a stunning photo of Venus and the moon shining above the Eiffel Tower in Paris, ...

CAPE CANAVERAL, Fla. (AP) — New research shows that when an asteroid slammed into the moon billions of years ago, it carved ...

This New Moon in Aquarius is your cue to snap out of the nostalgia reel and get real about what you want your next chapter to look like. Aquarius energy doesn’t just bring change—it demands it.

Mimicking the moon's gravity on spaceflights can accelerate research at much lower costs and future trips can “closely mirror Mars and other solar system gravity environments,” Blue Origin CEO Dave ...

Blue Origin's New Shepard rocket and spacecraft completed its moon-gravity mission, but the capsule appeared to have a slight ...

If all goes according to plan, New Shepard — a reusable rocket-capsule combo — will lift off on Tuesday from Blue Origin's ...

In a celestial event known as a great alignment the five planets will be discernible with the naked eye, but to see Neptune ...