Two possibilities exist: Either we are alone in the Universe or we are not.
Both are equally terrifying.

— Arthur C. Clarke

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Space and Astronomy News from Universe Today
Updated: 2 hours 55 min ago

NASA's Top 5 Technical Challenges Countdown: #2: More Power

Wed, 06/11/2025 - 7:46pm

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.

Categories: Astronomy

NASA's Top 5 Technical Challenges Countdown: #3: Better Computers

Wed, 06/11/2025 - 7:46pm

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.

Categories: Astronomy

NASA's Top 5 Technical Challenges Countdown: #4: Improved Navigation

Wed, 06/11/2025 - 7:46pm

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.

Categories: Astronomy

NASA's Top 5 Technical Challenges Countdown: #5: High-Powered Robotics

Wed, 06/11/2025 - 7:46pm

Space is hard. There's no doubt about that. It's completely unlike any environment we have ever faced on the Earth.

Categories: Astronomy

We Can Use Black Holes Particle Accelerators

Wed, 06/11/2025 - 7:46pm

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.

Categories: Astronomy