First Alien Space Rock Seen in Our Solar System

For the first time ever, astronomers have spotted an alien space rock floating around in our solar system. The asteroid is the first unexpected visitor from outside our system, and it’s moving fast (5.8 miles per second) so scientists are frantically trying to learn as much as possible about it before it disappears. Discovered by Hawaii’s Pan-STARRS 1 telescope, the rock is less than a …

Saudi Arabia’s $500 Billion Renewable-Energy-Only Mega City

Announced at the Future Investment Initiative, NEOM might just represent the next generation of urban planning. This future Saudi Arabian mega-city will cost $500 billion to build, connect to Jordan and Egypt and be powered completely by renewable energy (making it one of the largest cities in the world to run without fossil fuel). The first section of the 10,230-square-mile city is slated to be …

A Moon Cave for an Astronaut Base

A few things inhibit a full-time, human-populated base on the moon: micrometeorites, intense surface radiation and crazy temperature swings (from 100°C/212°F days into -173°C/-280°F nights). Japanese scientists from the Japan Aerospace Exploration Agency believe they have discovered something that can solve this: a massive cave (potentially once a lava tube) just below surface level. At 31 miles long and 330 feet wide, the space now …