Universe Today
NASA's Top 5 Technical Challenges Countdown: #2: More Power
What we have now just…isn't going to cut it. Right now if you want power in space you essentially have two options: solar panels, and a kind of nuclear power called radioisotope thermoelectric generators.
NASA's Top 5 Technical Challenges Countdown: #3: Better Computers
Computers have been involved in spaceflight since almost the very beginning. Just like on the Earth, computers aid in a variety of tasks, like navigation and communication. But unfortunately, space is really, really unkind to electronics.
NASA's Top 5 Technical Challenges Countdown: #4: Improved Navigation
But in space, like on the Moon or Mars, we have…none of that. Zero. No GPS satellites, no globe-spanning networks. Just radio broadcasts from command centers here on Earth to tell our robots and crews what to do.
NASA's Top 5 Technical Challenges Countdown: #5: High-Powered Robotics
Space is hard. There's no doubt about that. It's completely unlike any environment we have ever faced on the Earth.
We Can Use Black Holes Particle Accelerators
The Large Hadron Collider has changed particle physics, and now scientists are dreaming up even bigger supercolliders. But humanity can't match the raw particle-colliding power of a supermassive black hole. In a new paper, researchers describe how supermassive black holes create a dense environment where particles are spinning at relativistic speeds and crashing into each other, releasing other particles that could be detectable on Earth.