Astronomers find that two exoplanets may be mostly water

A team led by UdeM astronomers has found evidence that two exoplanets orbiting a red dwarf star are "water worlds," planets where water makes up a large fraction of the volume. These worlds, located in a planetary system ...

Moons may yield clues to what makes planets habitable

Earth's moon is vitally important in making Earth the planet we know today: The moon controls the length of the day and ocean tides, which affect the biological cycles of lifeforms on our planet. The moon also contributes ...

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