An analysis of more than 150 objects in the far reaches of the solar system suggests that a planet more massive than Mercury could be lurking beyond the orbit of Pluto.
solar system
Posted inResearch & Developments
Rubin Observatory Stuns and Awes With Sprawling First Look Images
Wow. Just wow.
Posted inNews
The Late, Great Gaia Helps Reveal Asteroid Masses
Astronomers are using data from the recently decommissioned star-mapping satellite to help determine masses and more accurate orbits of celestial bodies closer to home.
Posted inNews
A Geologic Map of the Asteroid Belt
Scientists leveraged a global camera network and doorbell cameras to track dozens of meteorites to their asteroid families.
Posted inNews
Distant Icy Twins Might Actually Be Triplets
The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, confirming a theory about the formation of our solar system.
Posted inResearch & Developments
NASA Science Faces an “Extinction-Level Event” with Trump Draft Budget Proposal
The initial draft of President Donald Trump’s budget request proposes devastating cuts to NASA’s science research, future space missions, and field centers.
Posted inNews
Pluto Captured Charon with a Kiss
A newly understood collision mechanism could explain some peculiarities of Pluto and its moons.
Posted inNews
Life’s Building Blocks Found in Bennu Samples
The discovery of amino acids, abundant ammonia, and the bases of DNA and RNA on asteroid Bennu suggest that materials essential to life might be widespread throughout the solar system.
Posted inNews
Magnetic Meteorites May Explain How the Solar System Assembled
Faint magnetic properties in primitive asteroid fragments suggest an early magnetic field strong enough to shepherd the growth of the outer planets.
Posted inNews
Pluto’s Small Moons Are Unlike Any Other
The strange blend of surface chemistry on Nix and Hydra raises big question about the evolution of the Pluto system.