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A new listing of the 50 most concerning pieces of space debris in low-Earth orbit is dominated by relics more than a ...

ESA and Avio signed the deal, worth 40 million euros ($47 million), on the sidelines of the International Astronautical ...

Beta Pictoris b is a young exoplanet about 12 times as massive as Jupiter, with an orbit nearly twice as long. Now, a timelapse video of the planet’s nearly 23-year orbit lets you see most of that ...

Beyond Neptune, a celestial object puzzles astronomers with its synchronized motion with the giant planet. Its inclined orbit challenges current models of the outer Solar System. Discovered by an ...