Our solar system is much like a trail of microcosmic breadcrumbs: Follow the molecular bits as far back as they go, and you'll learn a thing or two about where many of our planets and other celestial ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

What: New JWST observations probe the possible atmosphere of TRAPPIST-1 e, an Earth-sized planet in the habitable zone of a ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

Astronomers have long been on the hunt for "Planet Nine," a hypothetical planet that lies within our solar system just beyond Neptune. Scientific evidence has alternately pointed to and against the ...

The famous 87-year-old telescope at Lowell Observatory that was used to discover Pluto needs to be renovated so it can seek out the dwarf planet once more.

Astronomers have recently observed a planet being torn apart by its “zombie” white dwarf star, a phenomenon that challenges ...

Astronomers recently peered deep into space and found that an old, faint white dwarf named LSPM J0207+3331, located about 145 light-years away, is still consuming the rocky remains of its former ...

The historic Lowell Observatory announced this week that it will drastically reduce internally funded research and shrink its ...

Astronomers have for the first time detected a coronal mass ejection from another star, shedding light on worlds orbiting red ...