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Planetary Sciences Nov 30, 2023

Discovery of planet too big for its sun throws off solar system formation models

The discovery of a planet that is far too massive for its sun is calling into question what was previously understood about the formation of planets and their solar systems, according to Penn State researchers.

Planetary Sciences Nov 30, 2023

Dwarf planet Eris is 'squishier' than expected

University of California, Santa Cruz Professor of Planetary Sciences Francis Nimmo recently co-authored a Science Advances paper about the internal structure of the dwarf planet Eris.

Astronomy Nov 29, 2023

Observations find evolving material, not rings, circling Centaur Chiron

Observations during a stellar occultation detected the presence of evolving material orbiting around Centaur (2060) Chiron, rather than a two-ring system interpretation, according to a paper by Planetary Science Institute ...

Planetary Sciences Nov 29, 2023

Scientists discover rare six-planet system that moves in strange synchrony

Scientists have discovered a rare sight in a nearby star system: Six planets orbiting their central star in a rhythmic beat. The planets move in an orbital waltz that repeats itself so precisely that it can be readily set ...

Space Exploration Nov 28, 2023

Aerocapture is a 'free lunch' in space exploration

When spacecraft return to Earth, they don't need to shed all their velocity by firing retro-rockets. Instead, they use the atmosphere as a brake to slow down for a soft landing. Every planet in the solar system except Mercury ...

Astronomy Nov 28, 2023

Unwrapping Uranus and its icy secrets: What NASA would learn from a mission to a wild world

Uranus, the seventh planet from the sun, orbits in the outer solar system, about two billion miles (3.2 billion kilometers) from Earth. It is an enormous world—quadruple the diameter of Earth, with 15 times the mass and ...

Planetary Sciences Nov 27, 2023

What would happen to Earth if a rogue star came too close?

Stars are gravitationally fastened to their galaxies and move in concert with their surroundings. But sometimes, something breaks the bond. If a star gets too close to a supermassive black hole, for example, the black hole ...

Planetary Sciences Nov 22, 2023

Webb identifies methane in an exoplanet's atmosphere

The James Webb Space Telescope observed the exoplanet WASP-80 b as it passed in front of and behind its host star, revealing spectra indicative of an atmosphere containing methane gas and water vapor. While water vapor has ...

Earth Sciences Nov 17, 2023

Unique weather phenomenon may have helped Ukraine identify and sink Russian ship Moskva

A pair of radar experts at Swedish Defense Research working with a meteorologist from the Swedish Meteorological and Hydrological Institute has found evidence suggesting that the reason the Ukrainian military was able to ...

Planetary Sciences Nov 15, 2023

NASA data reveal possible reason some exoplanets are shrinking

A new study could explain the "missing" exoplanets between super-Earths and sub-Neptunes.

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