Just the sun. Like Earth is still Earth, Saturn is Saturn...
Long-period comet
Scientists call it refraction.
Scientists did not find the sun. The sun has been visible to mankind since the dawn of time.
we call the sun a star
We call these scientists horticulturists.
They believe a large gas cloud in space was condensed into what we now call the sun. Chunks of this cloud flew into orbit around the sun and eventually condensed into planets.
what do we call scientists who study plant
They call it a meteorite. It's all right if we call it that too.
Scientists usually go to conferences, not camps.
It isn't, not really. Scientists sometimes call our Sun a "yellow star" to differentiate it from the dimmer red or (even dimmer) brown dwarf stars, or the much larger and brighter blue giants. But the light from the Sun is as "white" as can be, because it radiates all colors.
I don't think there is anything we can do if the Sun were to die.
Its called a telescope!