In our solar system, Earth shines like a sapphire jewel. We go about our daily lives without knowing that trouble could be coming from deep space. The routes that Earth and most other things take around the Sun can be predicted. Most of the time, things are quiet and easy, but sometimes they get crazy […]
Tag: Asteroid
Stephen Hawking's Stark Warning for Humans to Leave Earth
In one of his final on-camera appearances, iconic physicist Stephen Hawking issued a warning to humanity about the existential threats we face and how our survival depends on colonizing another planet. From the Series: Leaving Earth: Or How to Colonize a Planet source
Where did Earth’s water come from? – Zachary Metz
View full lesson: Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again. It even makes up about 60% of our bodies. But in the rest of the solar system, liquid water is almost impossible to find. So how did our planet end up with so […]