Astronomy

Science of celestial objects

Full Moon

Can only be seen at night

Iron

Strongest bound nucleus.

Meteorites

Burn in atmosphere.

Exoplanets

Planets outside our Solar System.

Planetary Orbits

All stars and planets have orbits

Water

Came from comets in outer space.

Sunlight

Delayed first sunlight.

Magnetosphere

Shields from cosmic radiations

Moonlight

Moon reflects sunlight.

Day

Days getting longer.

Multi-Star System

Planet orbiting multiple stars.

Solar Flare

Coronal mass ejections.

Starlight

Luminosity varies with stage.

Sirius

Distance in light-years and radius.

Stars Wobble

Around a barycenter.

Venus

A planet inside our solar system.

Planets

Can scatter.

Kelvin

Surface temperature of the sun.

Axial Tilt

Invisible bow.

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