Planets
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Planets
A planet from the early universe
Astronomers have found the oldest and most distant planet known in the universe.
By Emily Sohn -
Planets
Melting Snow on Mars
Melting blankets of snow may have carved out Martian gullies.
By Emily Sohn -
Planets
A planet’s slim-fast plan
A planet orbiting very close to its sun can quickly lose weight.
By Emily Sohn