The Universe
The hypothetical planet that was proposed to collide with Earth 4.5 billion years ago. The collision was believed to have led to the formation of the Moon and the Earth as we know them today.
What is Theia?
This gas is the most common one found in Earth's clean air, making up about 78% of the atmosphere.
What is nitrogen?
A brown dwarf that is 13 times Jupiter's mass.
What is SIMP0136?
This invisible force pulls objects down toward the center of the Earth.
What is gravity?
This planet is an exoplanet and is the second planet of Proxima Centauri.
What is Proxima Centauri C?
A rogue planet that is the coolest brown dwarf, a failed star, and has 10 times Jupiter's mass.
What is Wise 0855-0714
This event happens every 2 to 3 times every year.
What is the lunar eclipse?