See also stories tagged with Neptune

Search results for Neptune

Planetary Sciences Jun 2, 2026

'Mini-Neptune' exoplanets may have smoggy atmospheres similar to diesel exhaust

The astronauts circling Earth on the Artemis mission sent back beautiful clear photos of the continents, clouds, and oceans. But we might be the exception. Many planets in the universe may be hazed in clouds of soot, according ...

Astrobiology Jun 1, 2026

New study has shone a new light on searching for habitable worlds

When astronomers discovered the first planet outside our solar system, it was orbiting a pulsar, one of the most extreme, radiation-blasted environments imaginable. Not exactly the kind of place you'd expect to find a planet, ...

Astronomy Jun 1, 2026

One of our planets may be missing, and it could explain why the solar system looks the way it does

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published in the journal Icarus, this extra world might have triggered a violent planetary shuffling billions ...

Planetary Sciences May 20, 2026

Neptune's mysterious moon Nereid may be original survivor of Triton's chaotic arrival

Neptune's far-flung moon Nereid may be the last of the planet's original companions that managed to survive a cosmic crash, scientists reported Wednesday.

Astronomy May 12, 2026

One graph attempts to connect every object in the universe

If you've ever taken an introductory astronomy class, you've probably seen the Hertzsprung-Russell (HR) diagram. This graph maps out the life cycle of stars by plotting their temperature against their luminosity, and has ...

Astronomy May 11, 2026

More Star Wars-like worlds emerge as 27 planet candidates with two suns discovered

There's so little we know about circumbinary planets—planets that orbit two stars instead of one—that they can feel like the stuff of fantasy. And for good reason: to date, we've only confirmed the existence of 18 circumbinary ...

Astronomy May 5, 2026

JWST pins down the origins of a planetary odd couple

Across the Milky Way galaxy, a planetary odd couple is circling a star some 190 light years from Earth. A normally "lonely" hot Jupiter is sharing space with a mini-Neptune, in a rare and unlikely pairing that's had astronomers ...

Astronomy May 4, 2026

A tiny world beyond Neptune has an atmosphere that shouldn't exist

A team of professional and amateur Japanese astronomers have found evidence for a thin atmosphere around a small body in the outer solar system. The object is so small that it should not have a sustainable atmosphere, raising ...

Astronomy Apr 29, 2026

The most common planets in the galaxy don't appear around the most common stars, TESS observations suggest

Astronomers now estimate there is at least one planet for every star in our galaxy. These worlds, called exoplanets, are planets that orbit stars outside our solar system. But new research from McMaster University reveals ...

Planetary Sciences Apr 22, 2026

Stellar flares may expand habitable zones around small stars

The search for life beyond Earth has traditionally focused on exoplanets orbiting sun-like stars, which is a G-type star. However, low-mass stars, which are designated as K-type and M-type stars, have rapidly become a target ...

page 5 from 40