22K views · 245 reactions | The Power to Explore Student Challenge 2025 is ready for launch! K-12 students are invited to plan a mission that uses Radioisotope Power Systems (RPS) to explore a dark, dusty, or far-away moon in our solar system. nasa.gov/power-to-explore | NASA Solar System Exploration | Facebook

3.8K views · 238 reactions | This imagery is from the Swedish 1-meter...

24K views · 2.6K reactions | Tick-tock, the Sun’s like a clock — but much more complex to predict. Scientists use a combination of observations, models, and mathematical techniques (including a "solar clock" analysis) to understand how the Sun will behave in the upcoming solar cycle. https://go.nasa.gov/3kzpLoF | NASA’s Goddard Space Flight Center | Facebook