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Published Scientific definition of a planet says it must orbit our sun; A new proposal would change that



The International Astronomical Union defines a planet as a celestial body that orbits the sun, is ma ...
Published Lunar radar data uncovers new clues about moon’s ancient past - Lunar Radar Data Uncovers New Clues About Moon's Ancient Past


The dusty surface of the moon -- immortalized in images of Apollo astronauts' lunar footprints -- fo...
Published After seventeen years, a spacecraft makes its first visit home - After Seventeen Years, A Spacecraft Makes Its First Visit Home


On Aug. 12, 2023, NASA's STEREO-A spacecraft will pass between the Sun and Earth, marking the first...
Published Fifth Dwarf Planet Named Haumea - Fifth Dwarf Planet Named Haumea



The International Astronomical Union has announced that the object previously known as 2003 EL61 is...
Published The craters on Earth - The Craters on Earth: A Fascinating Look into the Planet's History


A two-volume atlas presents and explains the impact sites of meteorites and asteroids worldwide. ABS...
Published The Milky Way's satellites help reveal link between dark matter halos and galaxy formation - The Milky Way's Satellites Help Reveal Link Between Dark Matter Halos and Galaxy Formation


Just like we orbit the sun and the moon orbits us, the Milky Way has satellite galaxies with their o...
Published 'Dragonfly’ dual-quadcopter aims to explore Titan, Saturn’s largest moon - Dragonfly’ Dual-Quadcopter: Exploring Titan, Saturn’s Largest Moon


The Dragonfly mission concept would use an instrumented, radioisotope-powered, dual-quadcopter to ex...
Published Watery planets orbiting dead stars may be good candidates for studying life -- if they can survive long enough



The small footprint and dim light of white dwarfs, remnants of stars that have burned through their...
Published Striped or spotted? Winds and jet streams found on the closest brown dwarf - Striped or Spotted? Winds and Jet Streams Found on the Closest Brown Dwarf



Using high-precision brightness measurements from NASA's TESS space telescope, astronomers found tha...
Published Observation, simulation, and AI join forces to reveal a clear universe - Observation, Simulation, and AI Join Forces to Reveal a Clear Universe


Astronomers have developed a new artificial intelligence (AI) technique to remove noise in astronomi...
Published Ultracool dwarf binary stars break records - Ultracool Dwarf Binary Stars Break Records


Astrophysicists have discovered the tightest ultracool dwarf binary system ever observed. The two st...
Published Twelve for dinner: The Milky Way’s feeding habits shine a light on dark matter - Twelve for Dinner: The Milky Way’s Feeding Habits Shine a Light on Dark Matter


Astronomers are one step closer to revealing the properties of dark matter enveloping our Milky Way...
Published Magnetic patterns hidden in meteorites reveal early Solar System dynamics - Magnetic Patterns Hidden in Meteorites Reveal Early Solar System Dynamics


Researchers have developed a novel technique to investigate the dynamics of the early Solar System b...
Published DART impact provided real-time data on evolution of asteroid's debris - DART Impact Provided Real-Time Data on Evolution of Asteroid's Debris


When asteroids suffer natural impacts in space, debris flies off from the point of impact. The tail...
Published Astronomy: Observation puzzles researchers - Astronomy: Observation Puzzles Researchers


An international team of astrophysicists has made a puzzling discovery while analyzing certain star...
Published Hubble directly measures mass of a lone white dwarf - Hubble Directly Measures Mass of a Lone White Dwarf


Astronomers have directly measured the mass of a single, isolated white dwarf -- the surviving core...
Published Making connections: Bringing astrophysical processes down to Earth - Making Connections: Bringing Astrophysical Processes Down to Earth


Magnetic reconnection, a process in which magnetic field lines tear and come back together, releasin...
Published Global map of lunar hydrogen: Data confirms role water played in moon's formation - Global Map of Lunar Hydrogen: Data Confirms Role Water Played in Moon's Formation



Using data collected over two decades ago, scientists have compiled the first complete map of hydrog...
Published Comet dust: Planet Mercury's 'invisible paint' - Comet Dust: Planet Mercury's 'Invisible Paint'


Scientists have long puzzled over the planet Mercury's excessively dark surface. New research sugges...
Published Mysteries of Uranus' oddities explained - Mysteries of Uranus' Oddities Explained


Uranus is a planetary oddity. Our Solar System's planets revolve around the Sun in the same directio...