arrojar

To throw or hurl something, often with more force or abandon than lanzar or tirar. Figuratively, it's the verb behind arrojar luz sobre algo ("to shed light on something") and arrojar resultados/datos ("to yield results/data"), both very common in reports and journalism.

• Arrojó la pelota al otro lado del jardín. — He threw the ball to the other side of the garden.
• El estudio arrojó resultados sorprendentes. — The study yielded surprising results.
• Estas cifras arrojan luz sobre el problema. — These figures shed light on the problem.

Using arrojar for the idiom "to throw in the towel" — that fixed expression is tirar la toalla in Spanish, not arrojar la toalla; arrojar pairs naturally with luz and resultados, but the towel idiom specifically uses tirar.

• expression "Arrojar luz sobre algo" — A common idiom meaning to clarify or provide information that helps explain a confusing situation, drawing on the old metaphor of physically bringing light — a torch, a candle, an open window — into a dark room to see something clearly.