In 2023, the OSIRIS-REx mission delivered about 120 grams of dust from asteroid Bennu to Earth. Analyses found 14 of the 20 amino acids life uses to build proteins, plus all five bases found in DNA and RNA. It doesn't prove life exists elsewhere, but it shows its ingredients travel through space.
A large share of Earth's water molecules formed in the interstellar cloud that existed before the Sun was even born, more than 4.6 billion years ago. You are literally drinking a cosmic fossil.
By day, the Martian sky looks butterscotch because of fine dust hanging in the air. But at dusk, those same grains scatter blue light forward, creating a bluish glow around the Sun. Rovers have photographed these blue sunsets: the exact reverse of what we see on Earth.