T is for Taurus

Ursa Major

V is for Venus

W is for wormhole.

X is for x-ray binary star.

Y is for Yellow Dwarf

Zenith

A is for atmosphere.

Binary star

C is for constellation.

D is for Delphinus constellation

E is for eclipse.

F is for Flare

G is for gas.

Haleys comet

I is for Io (one of Jupiter's moons)

J is for Jupiter

K is for Kerberos (one of Pluto's moons/satellites)

Luna (Latin name of the moon)

M is for Mars

Neurons?

O is for Orion constellation

Pisces

Quasar

Rocket