How hot is the sun? It's a tricky question, even for scientists.

via https://ift.tt/8QwS9Ft That's a spicy meatball.

There's a space joke so old you're unlikely to find its provenance on the internet: If you want to visit the sun, go at night.

If you're scratching your head about the punchline, that's because the sun, our solar system's star that provides heat and … How hot is the sun? It's a tricky question, even for scientists.