Astrobiology

noun The Milky Way is a barred spiral galaxy in the Local Group of galaxies.

• The Milky Way is a spiral galaxy that contains our solar system.
• I love stargazing and trying to spot the Milky Way in the night sky.
• The Milky Way is like a big cosmic highway with stars all around.
• Her eyes sparkled like distant stars in the Milky Way.

noun a type of stony meteorite that contains no chondrules

• The achondrite meteorite is a type of stony meteorite that lacks chondrules.
• Did you know that achondrites are meteorites that don't have chondrules?
• Achondrites are like the rebels of the meteorite world, no chondrules for them!
• Her heart felt like an achondrite, lacking the usual emotional 'chondrules'.