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Neptune News
June 16, 2019

Top Headlines
 

An exoplanet smaller than Neptune with its own atmosphere has been discovered in a region close to its star where no Neptune-sized planets would normally ... read more
Astronomers using the Gemini Observatory explore Neptune's largest moon Triton and observe, for the first time beyond the lab, an extraordinary union between carbon monoxide ... read more

TESS Finds Its First Earth-Sized Planet

A nearby system hosts the first Earth-sized planet discovered by NASA's Transiting Exoplanets Survey Satellite, as well as a warm sub-Neptune-sized world. This milestone sets the path for finding ... read more

Icy Giant Planets in the Laboratory

Giant planets like Neptune may contain much less free hydrogen than previously assumed. Researchers drove shock waves through two different types of plastic to reach the same temperatures and ... read more
Latest Headlines
updated 11:19pm EDT

Earlier Headlines
 

From Car Engines to Exoplanets

Chemical models developed to help limit the emission of pollutants by car engines are being used to study the atmospheres of hot exoplanets orbiting close to their ... read more

Hubble Sees Neptune's Mysterious Shrinking Storm

Three billion miles away on the farthest known major planet in our solar system, an ominous, dark storm -- once big enough to stretch across the Atlantic Ocean from Boston to Portugal -- is shrinking ... read more

Pluto's Hydrocarbon Haze Keeps Dwarf Planet Colder Than Expected

The gas composition of a planet's atmosphere generally determines how much heat gets trapped in the atmosphere. For the dwarf planet Pluto, however, the predicted temperature based on the ... read more

NASA Investigates Invisible Magnetic Bubbles in Outer Solar System

Forty years ago, the twin Voyagers spacecraft were launched to explore the frontiers of our solar system, and have since made countless discoveries, including finding magnetic bubbles around two of ... read more

Haumea, the Most Peculiar of Pluto Companions, Has a Ring Around It

The trans-neptunian belt contains four dwarf planets, among which Haumea stands out for its extremely elongated shape and rapid rotation. A stellar occultation makes it possible to establish the main ... read more

The Super-Earth That Came Home for Dinner

It might be lingering bashfully on the icy outer edges of our solar system, hiding in the dark, but subtly pulling strings behind the scenes: stretching out the orbits of distant bodies, perhaps even ... read more

Brown Dwarf Weather Forecasts Improved

Dim objects called brown dwarfs, less massive than the Sun but more massive than Jupiter, have powerful winds and clouds -- specifically, hot patchy clouds made of iron droplets and silicate dust. ... read more

Scientists Probe Neptune's Depths to Reveal Secrets of Icy Planets

Scientists have helped solve the mystery of what lies beneath the surface of Neptune -- the most distant planet in our solar ... read more

Twilight Observations Reveal Huge Storm on Neptune

Striking images of a storm system nearly the size of Earth have astronomers doing a double-take after pinpointing its location near Neptune's equator, a region where no bright cloud has been ... read more

New Branch in Family Tree of Exoplanets Discovered

Researchers have classified exoplanets in much the same way that biologists identify new animal ... read more

Neptune: Neutralizer-Free Plasma Propulsion

Plasma propulsion concepts are gridded-ion thrusters that accelerate and emit more positively charged particles than negatively charged ones. To enable the spacecraft to remain charge-neutral, a ... read more

Primitive Atmosphere Discovered Around 'Warm Neptune'

A pioneering new study uncovering the 'primitive atmosphere' surrounding a distant world could provide a pivotal breakthrough in the search to how planets form and develop in far-flung ... read more

Neptune's Journey During Early Planet Formation Was 'Smooth and Calm'

A major discovery has been made on the formation of icy bodies within the Kuiper Belt, unlocking unique evidence that Neptune's movement during early planet formation was a 'smooth and ... read more

Astronomers Discover Dark Past of Planet-Eating 'Death Star'

Scientists have made the rare discovery of a planetary system with a host star similar to Earth's sun. Especially intriguing is the star's unusual composition, which indicates it ingested ... read more

Microlensing Study Suggests Most Common Outer Planets Likely Neptune-Mass

A new statistical study of planets found by a technique called gravitational microlensing suggests that Neptune-mass worlds are likely the most common type of planet to form in the icy outer realms ... read more

Mystery Solved Behind Birth of Saturn’s Rings

A team of researchers has presented a new model for the origin of Saturn's rings based on results of computer simulations. The results of the simulations are also applicable to rings of other ... read more

More Evidence for Ninth Planet Roming Solar System's Outer Fringes

As the search for a hypothetical, unseen planet far, far beyond Neptune's orbit continues, new research provides additional support for the possible existence of such a world and narrows the ... read more

Possible Formation Site of Icy Giant Planet Spotted

A number of extrasolar planets have been found in the past two decades and now researchers agree that planets can have a wide variety of characteristics. However, it is still unclear how this ... read more

Origin of Minor Planets' Rings Revealed

A team of researchers has clarified the origin of the rings recently discovered around two minor planets known as centaurs, and their results suggest the existence of rings around other ... read more

Icy Giant Planet Growing Around a Nearby Star

Astronomers found signs of a growing planet around TW Hydra, a nearby young star, using the Atacama Large Millimeter/submillimeter Array (ALMA). Based on the distance from the central star and the ... read more

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