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planetary formation

Panels a, b, and c each show stereographic image pairs of the asteroid Dinkinesh taken by the NASA Lucy Spacecraft’s L’LORRI Instrument in the minutes around closest approach on Nov. 1, 2023. The yellow and rose dots indicate the trough and ridge features, respectively. These images have been sharpened and processed to enhance contrast. Panel d shows a side view of Dinkinesh and its satellite Selam taken a few minutes after closest approach. Credit: NASA/SwRI/Johns Hopkins APL/NOIRLab.

Lucy Spacecraft Discovers Unexpected Contact Binary Orbiting Asteroid Dinkinesh

Galaxy illustration

Hawaiʻi astronomers find a planet that shouldn’t exist

The Hubble Space Telescope has captured images of gas-and-dust disks around the young star TW Hydrae. These images show shadows moving across the disks surrounding the system. Scientists believe that these shadows are being cast by inner disks that are slightly tilted and blocking the light from reaching the outer disk. This tilt is due to the gravitational pull of unseen planets that are changing the structure of the disks.

Two Baby Planets May Be Playing Hide-and-Seek in Distant Star System

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